Salutary factors explaining why hospital nurses remain in work and the profession

Background: There is extensive research on how nurses experience their working conditions and environment; this research reveals high job stress, job dissatisfaction and intention to leave the workplace. Objective: The objective is to explore and describe factors explaining why hospital nurses remain in work and the profession. Methods: The salutogenic theory was used as a basis for the interview guide, which contained semi-structured, open-ended questions covering factors important to explaining why nurses remain in work and the profession. Data collection took place from March to June 2018. Individual interviews with 12 nurses working in a hospital in western Sweden were conducted. The data were analyzed using content analysis; additionally, sense of coherence (and its three dimensions: comprehensibility, manageability, and meaningfulness) was used as a tool to structure analyses of the qualitative data. Results: The following factors emerged from the analysis: having fun at work, being acknowledged, feeling togetherness in the team, having varying tasks with a manageable workload, good interaction between colleagues and patients, doing good work, feeling committed to and pride in the professional role, and having a balance between work and leisure time. Conclusions: One precondition of improving nurses’ health and well-being was having clear leadership. Another precondition was having a sense of coherence in relation to both the working group and the organization. Experiencing job satisfaction and being acknowledged for one’s good work were important; acknowledgement was received not only from patients, but also from colleagues, other professionals and the nurse manager. In this way, the nurses felt acknowledged and could create a sense of meaningfulness, manageability and comprehensibility in their work.

profession; that is, it is important to discover what factors promote a sustainable working life for nurses.
The present study seeks to understand the factors that can increase both the professional longevity of nurses working in hospitals and nurses' willingness to remain in work and the profession.

Previous research
There is extensive research on how nurses experience their working conditions. Nursing care has been shown to involve high job stress [5], job dissatisfaction and intention to leave the workplace [6][7], as well as burnout and intention to leave the profession [8]. In a cross-sectional study in a Swiss hospital setting, one in six nurses thought frequently about leaving the profession. According to Hämmig [8], temporal, physical, emotional and mental workloads as well as job stressors were strongly and positively associated with burnout symptoms. A similar scenario was seen among Taiwanese clinical nurses), where ve main paths were found from job stress to intention to leave the hospital [9]. Job stress directly affected job satisfaction and depressed mood, which in turn affected intention to leave the hospital.
Intention to leave the hospital preceded intention to leave the profession. These results highlight how important it is for nurses to be able to deal with stress, in both the short and the long term. Posttraumatic stress disorder (PTSD) was the focus of a study among nurses working in a variety of sub-specialties and from 12 different countries [10]. Findings from this integrative review revealed that PTSD is a growing concern in the nursing profession. Four themes emerged from the synthesis of factors that in uenced PTSD among nurses: the workplace matters, relationships matter, it hurts to care and interpersonal strengths. These overarching themes captured a multitude of factors that occur across three levels of in uence: organizational, interpersonal and intrapersonal.
These four themes are connected to ideas from stress management and resource-oriented research, which highlight people's ability to manage stress and stay well [11]. It is becoming increasingly important to ask not only how nurses survive at work, but also how they thrive [12][13][14]. One way to look at this is to explore how nurses create and maintain a sense of coherence (SOC) and nd strategies for managing stress [13]. Salutogenesis is a dynamic and exible approach that involves a constant focus on being able to manage stress [14]. In a Swedish context, the level of the three dimensions of SOC varied.
Manageability was weakest and decreased the total SOC. The meaningfulness dimension was as strongest. On a national level, nurses reported weaker SOC than the general population, but in an international comparison, they reported stronger SOC. Hospital nurses found their work di cult to manage, but meaningful [14]. Sasso and colleagues [16] described "push and pull" factors involved in nurses' intention to leave their job. Dissatisfaction was the most important reason for intention to leave the job (35.5%), and among the dissatis ed, 33.1% intended to leave the nursing profession. Push factors included understa ng, emotional exhaustion and poor patient safety. Pull factors for staying included positive perceptions of the quality of care, patient safety and performing core nursing activities. The focus of the present study is on creating a sustainable working life for nurses. The study aim is to explore and describe factors explaining why hospital nurses remain in work and the profession.

Theoretical framework
The salutogenic theory of health was applied as the theoretical framework for the present study [11,[13][14]17]. Salutogenesis is a resource-oriented eld of health research that involves understanding people as unique individuals with different resources and competencies. Essential to the salutogenic theory is understanding health as a process that exists along a continuum: the health/dis-ease continuum (see Figure 1). This is a way of looking at health as a process, as opposed to seeing it as a dichotomy between health and disease. The key concepts are SOC, which is the ability to comprehend the whole situation, the capacity to use available resources: the generalized and speci c resistance resources against stress (GRRs/SRRs) [11,14]. This capacity is a combination of people's ability to assess and understand the situation they are in, to nd meaning in investing the energy needed to move in a healthpromoting direction, as well as to manage the situation -that is, comprehensibility, meaningfulness, and manageability.

Study design
The study design was adopted to gain a deeper understanding of success factors that explain why hospital nurses remain in work and the profession [17]. This new knowledge can help in studying nurses' subjective understanding of the dimensions of a SOC, that is, comprehensibility, manageability and meaningfulness. The study is qualitative, explorative and descriptive in design [18,19]. Taking this qualitative approach is appropriate when researchers wish to gather a maximum amount of information within a particular domain [20].
The study was conducted at a hospital in western Sweden. The hospital includes four speciality areas: emergency medicine, specialist medicine, surgical care and adult psychiatric inpatient care. Within the four speciality areas, there are several departments and clinics where physicians, nurses, physiotherapists and occupational therapists work. The study was conducted in four phases: 1) a literature review of previous research focusing on salutary factors that have been shown to support sustainability in nurses' working life; 2) using questions derived from the salutogenic theory and its core concept SOC [17], seven question areas were identi ed that formed the basis for development of the interview guide; 3) an inductive (data-driven) approach was adopted to analyze data using qualitative content analysis [21]; and 4) a deductive approach was employed to theoretically discuss the ndings [13].

Data collection
A purposive sampling method was used. The participants were recruited by sending an informational letter to the unit managers, who in turn invited their staff to participate in the study. The nurses who wished to participate were encouraged to contact the rst author HN by e-mail. The nurses who consented to participate were contacted by telephone by an interviewer to schedule a time for the interview. Written informed consent was obtained before starting each interview. The interviewers had previous experience of conducting interviews for research purposes. Data collection took place through in-depth face-to-face interviews conducted at a secluded location the respondent was asked to choose at the hospital where the participants worked. The interview guide was employed, using semi-structured and open-ended questions covering factors important to explaining why nurses remain in work and the profession (see examples of items in Table 1). During the interviews, the participants were asked about factors that positively affect job satisfaction, factors that cause them to remain in the profession, organizational and individual conditions that are important to them remaining in working life, their learning experiences and changes they wish to see in their future career.

Data analysis
The collected data were analyzed both deductively and inductively using qualitative content analysis [21].
Initially, the entire text was read several times to achieve an overall understanding. In the next step, the texts were reduced into meaning units, that is, parts of the text related to the study aim and research questions. The meaning units were condensed, but retained their most signi cant content. The underlying messages of the condensed meaning units were then labelled with codes. The codes were continually adjusted to make the inductive process more rigorous [21]. Based on the patterns emerging from the analysis, the codes were deductively structured into the dimensions of the SOC -that is, meaningfulness, manageability and comprehensibility -which thus constitute the themes presented in the results section [17]. Subthemes were then identi ed; they were categorized together into the three main themes and described the latent meaning of the overt statements [21]. An example of how the data were analyzed is shown in Table 2. In this way, we also deepened our understanding of the three dimensions of SOC through the analysis of the nurses' experiences.
After ten interviews had been conducted, the researchers jointly assessed whether the data were saturated in relation to the study aim. Following this rst assessment, two additional interviews were conducted, and a second data saturation assessment was carried out, after which it was concluded that no further interviews were needed. According to Saunders et al. [22], data saturation differs depending on the type of study and on assumptions concerning whether the data represent an ongoing process. In the present study, after the last two interviews, we concluded that the material was rich in qualitative statements and corresponded to the study aim, as well as that further interviews were unlikely to add any major patterns or variation.

Ethical considerations
The nurses were informed about the study both orally and in writing. Informed consent was obtained from the nurses who were willing to participate. They were told that participation was voluntary and that they were free to withdraw from the interview and the study at any time without giving a reason. Permission to conduct the study was obtained from the operational managers. Under the Swedish Act concerning the Ethical Review of Research Involving Humans, the study did not require ethical approval. The study nevertheless followed the ethical guidelines stipulated by CODEX and The Swedish Research Council [23]; moreover, the principles of the Helsinki Declaration [24] were applied.

Trustworthiness
Trustworthiness can be de ned as including credibility, dependability, con rmability and transferability. When evaluating qualitative data, these issues must be considered [20][21]. To ensure credibility and provide a broad picture of the problem, participants from several occupational categories and with rich experience of caring were included in the study. Credibility [19] was also achieved by choosing individual interviews in which the nurses described what they did to create sustainability in their working life. The procedures for data analysis and generation of themes and subthemes have been described above. The analysis process was characterized by critical review on the part of the researchers, who read the interviews and jointly de ned the themes and subthemes to ensure the study's dependability. Con rmability was attained by checking the codes, themes and subthemes against the interviews throughout the analytical process. Con rmability was also strengthened by relating the results to earlier research. The participants' unique answers and the inductive and deductive process ensure the study's con rmability. To facilitate transferability, a description of the context, selection and characteristics of the participants has been provided. The methods for identifying and condensing meaning units have also been clearly described, thus allowing readers to easily understand the background of the presented results. Furthermore, excerpts from the interviews have been provided so that the reader can assess whether or not the ndings are transferable to other settings.
The Consolidated Criteria for Reporting Qualitative Research (COREQ) Checklist was used to ful ll the standards of high quality research (Supplementary File 1).

Results
The participants (N=12) were nurses working at a hospital in western Sweden who had long experience working as a nurse (mean 16 years). The nurses participated in an individual semi-structured interview, which was digitally audio-recorded. The interview inclusion criteria were: understanding and speaking Swedish and at least ve years of experience working as a nurse. The participants' sociodemographic variables are shown in Table 3. The interviews lasted between 53 and 106 minutes (mean 80 minutes) and were transcribed verbatim; they provided rich data, amounting to more than 200 pages of transcribed text.
The results are presented using the three theoretical dimensions of the SOC construct -meaningfulness, manageability and comprehensibility -as themes, with subthemes exemplifying the contents of these themes as they emerge from the data. The termdimensions is used in relation to the SOC, while the terms subtheme and theme relate to the study results. This means that the participating nurses have provided a deeper understanding of the content of the three SOC term dimensions. The nurses described factors explaining their ability to remain in work and the profession, that is, factors that strengthen them in everyday life (Table 4).

Meaningfulness
In the workplace, the nurses are in a context that is important to them and feels straightforward. The nurses have a need for acknowledgment from colleagues, patients and their relatives, as such acknowledgement makes the usefulness of their work efforts clear to them and increases the meaningfulness of their work. In this way, the nurses feel they are productive; they can see the results of their own work. The nurses also need to be included in meaningful healthcare teams that are characterized by job satisfaction and humor.

Feeling job satisfaction and having fun at work
The nurses see job satisfaction as one of the most meaningful factors for remaining in the workplace for a long time. This can involve job satisfaction in the team or the joy felt when a patient expresses something positive.
Job satisfaction for me, it's getting someone to smile. Try to spread positive emotions. Be happy and make it easier for others. That gives me job satisfaction, I feel good. A patient who looks at you and says "thank you," and you can see that everything you did went well (Nurse, medical outpatient care).
Having fun at a workplace marked by humor is also something the nurses describe as important to remaining in the workplace for many years. This can entail, for example, using humorous jargon in the team, colleagues having a twinkle in their eyes or being able to laugh together. The nurses also describe how important it is to have work that is meaningful; they go to work with a positive feeling. Now we have a very ne atmosphere. Our students say that they've never been on a ward where they felt so welcome right away, a basic positive feeling and that's how we want it. We are able to joke and talk to each other. However, I almost see my colleagues more than I see my family (Nurse, psychiatric inpatient care).
Being acknowledged and feeling productive According to the nurses, the meaningfulness of their work increases when they are acknowledged. It is often patients who provide this acknowledgment, either directly or when the nurses have contributed to patients' improved health. But it can also be colleagues or relatives who acknowledge the nurse.
Every day when you get this feedback from patients, whatever it may be, it feels like I've done something good. But, it's not always so, there are others too. Most of the time I've done something good every day/…/I feel good about being seen and acknowledged and seeing and acknowledging others (Nurse, surgical outpatient care).
The nurses have a great need to feel productive and useful in their work. They can provide selfacknowledgement, especially when patients recover. Then they see how their involvement has contributed to the positive outcomes.
A workplace where I thrive and feel I go to easily, that I'm useful, needed in any way. That's what I get from both patients and staff (Nurse, psychiatric inpatient care).
Feeling togetherness and secure in the work team Feeling togetherness and secure in the work team is central to nurses' experience of meaning at work. Cohesion means a great deal to the nurses, that is, working as a team and solving problems together, especially in precarious care situations.
I think togetherness gets a little stronger in crisis situations. I actually think that there are probably many institutions that feel that way, that you get a little tighter during crisis situations. Togetherness gets stronger in strained situations (Nurse, medical inpatient care).
The nurses experience togetherness when they are accepted, involved and part of the work team. They feel they are not alone and have full responsibility for care provision. They feel they are part of a greater whole.
Being accepted by the group, that you're part of the group, being seen and heard. That people listen to what you have to say, and being involved in making decisions. I think it's important to belong to a group, because that's probably what being a nurse means, that you're independent but still part of the whole. Having colleagues and supporting each other (Nurse, medical inpatient care).

Manageability
High demands are placed on the nurses as regards being able to manage their day-to-day work. These high demands concern both more routine tasks and stressful situations, but the nurses nd ways to cope with the different care situations. Factors that make the work situation manageable include receiving support from colleagues and managers, being involved and being able to interact with colleagues and other healthcare professionals. A good balance between work and leisure makes the work more manageable. An additional factor is being able to mentally leave work duties behind at the end of the workday. Having an individual work schedule is valuable for the nurses, as it gives them a great deal of exibility. They also express a need to have a manageable workload, that is, to have control over various care situations. Using these factors, they can build sustainable strategies for managing different care situations and coping with the work, both physically and mentally, for a long time.
Having a manageable workload Nurses typically have a high workload and must prioritize tasks if they are to cope with a variety of care situations. It is important to have enough nurses on the ward to handle the high workload. Having a manageable workload means there is a readiness for unexpected and emergency events.
Enough staff, that is number one, there has to be enough nurses. Enough, so that both nurses and auxiliaries feel they are coping with the work, and that there's a buffer if something happens. That there are extra staff every day, because there's usually someone who is absent, children who are sick. So that you have a small buffer to rely on, so that you never have to be understaffed for longer periods (Nurse, surgical inpatient care).
When the workforce is su cient and the workload is balanced, there is time for important tasks other than pure physical care or emergency care. This means that nurses have the opportunity to take more time to create care relationships with patients and can perform qualitatively good nursing. This allows them to nish their workday with a higher level of satisfaction.
When we're su ciently staffed, just enough workload, then I have time for my responsibilities, I have time to deal with things that are hanging over me. That I get a moment to sit and nish, so I can catch up with my duties (Nurse, medical outpatient care).
The workload can vary during the day and across work shifts. If the nurses have opportunities to slow their pace during the day, they can take a break between more stressful tasks, which allows a kind of recovery. This recovery, in turn, can provide extra energy to tackle more strenuous situations.
I can work at a fast pace one day, because then I know that the next day, maybe, will be a bit calmer, and then I slow down, and I can manage the work. I know that I would have burned out otherwise (Nurse, psychiatric inpatient care).
You can work under stress temporarily, you can do it, you can push yourself and then you have to nd a recovery phase/…/What the recovery phase looks like is individual, you have to nd a recovery phase, a bit every day, and then you can handle more stress again. But I have been stressing for 16 years and then suddenly "Bang!" and I've been there, I know how it feels and I never want to be there again. I'm an expert at learning to say "stop and no," even if I want to (Nurse, surgical outpatient care).

Having varied tasks
Nurses' professional role involves a variety of everyday tasks and challenges. Although many tasks are based on experience and routine management, nurses are exposed daily to challenges and trials. The nurses feel their tasks are positive challenges in that they create variation, which means working as a nurse never becomes monotonous.
No days are identical, there are encounters with different people, patients and situations. Nothing gets boring, you have to be on the ball all the time and this makes you more mentally alert (Nurse, surgical outpatient care).
I'm very pleased with my situation, that I have a bit of everything, I come in when someone is sick or when there is a shortage of nurses, so it feels good (Nurse, psychiatric inpatient care).
The varying tasks mean that the nurses are constantly learning, especially when their knowledge is tested in more challenging situations.
That it's varied, it's very instructive, it never gets monotonous, and it never gets old. There are always new things happening all the time. Both in the way we work and how we handle our duties. The fact that the tasks themselves are varied means that you never really stop to learn (Nurse, surgical outpatient care).

Having a work-leisure balance
If nurses are to recover properly and cope with their work, they need to nd a balance between work and leisure. This means having an active leisure time and feeling good at home, while having the energy to deal with patients.
If you have a good home life and leisure time, it's re ected in your work, then you can do a good job.
If you've had a good weekend at home and feel that it's given something, then you're more rested and positive when you come to work (Nurse, medical inpatient care).
The nurses need to be able to leave their duties behind and feel they are " nished" with them at the end of the workday. This entails being able to leave their work behind, both physically and mentally, so that it does not accompany them home and affect their leisure time.
Work must not take over so that I can't cope with my spare time, and the same thing, leisure time should be energizing and help me cope even better at work, so that there's a balance there. So I feel I have time for both in a good way (Nurse, psychiatric inpatient care).
The situation at home can affect the nurses if they do not have enough energy for work. If there is an open, accepting atmosphere in the working team, the nurses can get support from colleagues and thus manage their work situation more easily.
You have to feel good about your social life at home. But it should be okay, if you have problems at home, that you don't have to forget them when you come to work/…/What's nice about my job is that I can come here and tell somebody that I've had a hard night or whatever it might be (Nurse, surgical outpatient care).
The nurses report a need to have work schedules that enable a balance between work and leisure. When there are opportunities to have individual schedules, the chance of improving that balance is increased. I've been working daytime for three years. We try to reschedule as best we can, so that I work maybe only ten evenings, and work as much daytime as possible. It works very well at home, when my husband works irregularly. Then I'm at home if he works early mornings. And when my husband works late evenings, I'm the one who can pick up the children and manage the practical things (Nurse, psychiatric inpatient care).
Having a schedule that suits me and that lets me recover. I have a little di culty working evenings and getting up early. I've changed my schedule, so I work evenings before my day off (Nurse, psychiatric inpatient care).

Having good interactions and strong leadership
Interacting with others is an important precondition for managing the work situation. In interaction with others in the team, the nurses have the opportunity to get support, which helps them handle different care situations. Nurses can also receive support and expert help from other professionals, such as doctors, physiotherapists and auxiliaries.
We work well together, we all work together, support each other and discuss things. We cooperate really well, I think. If there's something you don't know how to do, then you're not afraid to get help from someone else, or to say "I can't, but…" It challenges you, I think that's really important (Nurse, psychiatric inpatient care).
In order for nurses to develop good manageability, clear leadership is needed and, thus, a clear and strong manager. Such leadership provides security and is a precondition for the work team to function satisfactorily.
A good manager makes the whole teamwork, she does almost everything for us, I almost said. She plays around with the schedule/…/she makes a special schedule for those who work until ve and some work every other weekend, then they have special schedules. She really spends time and energy on us, which makes people want to stay and enjoy being on the ward, and you gain con dence (Nurse, psychiatric inpatient care).

Comprehensibility
Creating sustainable work situations for nurses means making these situations comprehensible. Comprehensibility is created when the nurses can re ect on their role and the work they do. Comprehensibility helps the nurses understand that they are needed and that they are providing good care for their patients. The nurses need varying tasks, so that their work is not trivial and monotonous. Nurses develop and learn when they face new challenges on a daily basis. In this way, the professional role is constantly evolving. The nurses are proud of their professional role, and their professional role and function are valuable in the healthcare organization.

Feeling valuable, needed and doing good work
The nurses understand that their professional role is of great value owing to the knowledge they have and the tasks they perform, which involve great responsibility. They feel needed and that they are contributing something important to patients' health.
To me, my professional role means feeling I am capable. Having su cient knowledge so that I can help people and have the energy to help when someone is powerless. Being able to support that person is a strong driving force for me (Nurse, psychiatric inpatient care).
I'm thriving as a nurse, I enjoy meeting new people, and I enjoy helping, doing something for someone else, and as you can see... it usually turns out good for them (Nurse, surgical outpatient care).
Sometimes, it is only the feeling of doing something that bene ts someone else (the patient) that gives this satisfaction.
Yes, being able to help and provide support gives me satisfaction that it is working in all ways for our patients (Nurse, psychiatric inpatient care).
It's the best profession in the world. Being able to help someone who needs it and to alleviate problems or support or treat in the best way. That's what I want to do (Nurse, medical outpatient care).

Being committed
The nurses feel highly committed to their work, which means they get deeply involved in their patients and try to do that "little extra" for them. It is important for nurses to not only carry out basic nursing, for example, patient hygiene care, but also help patients by talking with them and building trusting relationships.
I try to do that little extra, even for the patients, "to give of oneself." If I get good treatment in return, it means a lot to me. I hear someone say, you did great, yes it means a lot to me (Nurse, medical outpatient care).
At the same time, the nurses understand that they cannot get too deeply involved in patients' situations; they must also think about themselves. This is an approach they have developed over a long period of time to prevent work-related stress and ill health.
You have to take care of yourself, not get involved in everything. It's important that you don't do everything yourself, that you can ask others for help and know their limitations, I think that's important. That you don't wear yourself out, because that helps nobody, if you have to stay at home sick just because you've gotten too involved. Somehow, it's about getting involved in the right things (Nurse, psychiatric inpatient care).

Feeling pride in your professional role
The nurses are proud of their professional role and the responsibility it entails. According to the nurses, their expertise is also of great value, and this further strengthens their pride.

Discussion
The aim of the present study was to explore and describe factors explaining why hospital nurses remain in work and the profession. In the study, nurses expressed a strong feeling of togetherness and pride in their profession, even under conditions involving stress and high workload. They highlight the importance of giving social support to and getting support from colleagues and patients, as this helps them manage daily life. They try to do the best they can for their patients, which gives them meaning in life and as professionals. The results reveal that nurses perceive a SOC and that this is important to their wellbeing.
Nurses' engagement in patient care and work is consistent with previous ndings showing that nurses thrive when they nd meaning in their work [13]. Important to job engagement are feeling an appetite for work and vitality.
The nurses clearly describe a care-related driving force that is the source of their great commitment to their work. There are also clear altruistic elements involved, such as wanting to contribute something extra and not just performing tasks in a technical or routine manner. This in uences their experience of doing something good and giving that 'little extra,' which is largely based on personal commitment to patients' needs. The nurses experience a strong a nity with the working group and the collective, from which they receive a great deal of support and energy, which help them cope with everyday tasks.
Although the nurses in the present study report feeling highly committed to their work and patients, they must not get too involved. The nurses try to set limits -an approach they have developed over a long period to prevent work-related stress and ill health. In this way, they identify strategies for managing stress as well as for creating and maintaining a SOC [14]. Factors that can maintain nurses' good health in stressful work environments are: strengthening nurses' professional pride; stressing the great value of their knowledge and duties; reinforcing their feeling of being needed and doing good; increasing opportunities for them to work with nursing duties such as talking with patients and building trusting care relationships; creating a SOC that promotes meaningfulness, manageability and comprehensibility in work. Previous research has stressed the importance of job engagement, support from colleagues, personal characteristics and self-knowledge [13].
The results demonstrate that, to achieve good recovery, the nurses need to be able to leave work behind them, both physically and mentally, after their workday. The nurse manager can give nurses the opportunity to take some time for re ection before the end of the workday [25]. Hence, re ection can serve as a sustainability tool, helping nurses develop a "thought respite" and recovery, which can in turn help them control their work situation, provide extra energy to manage workloads and build a defense against stress -all of which can be sustainable in the long term.
According to the nurses in the present study, having reduced workload, varied tasks, individual schedules, clear leadership and co-operation between nurses and other professionals are factors that contribute to a good working climate, SOC, and meaningfulness. These factors are important for nurse managers to consider in their efforts to support nurses' meaningfulness in their work and make nurses' work manageable. The present results are in line with ndings from Furunes, Kaltveit and Akerjordet's [26] study, which showed how nurse managers can create a good working climate for nurses by giving them opportunities to participate in decision-making, develop their skills and provide social support; such a working climate can encourage nurses to remain in the job, as valuable assets in the organization.
By raising awareness of the importance of the three SOC dimensions meaningfulness, manageability and comprehensibility for nurses and nurse managers, we can acquire an understanding of and knowledge about these dimensions as well as develop skills that promote a better workplace and work environment [27]. In one study, aimed at exploring how engaged people master intensive work through coping and job crafting in a salutogenic way, two strategies were identi ed -i.e., an active strategy and a cognitive strategy -involving both coping and job crafting. The speci cs of these strategies determine whether salutogenic processes are present [28]. Elements of the active strategy were prioritizing work, working more hours, and seeking support from management or colleagues [27, p. 634], while attitudes, rede ning thoughts about work, and hoping for a better future were elements of the cognitive strategy [27, p. 634].
Re ecting on the content of nursing practice and discussing with colleagues how to manage their work situation, while providing good patient care, involve experience-based learning processes. This approach is a form of work-integrated learning. In this way, the workplace and the nurse manager give nurses as individuals and as a professional group the opportunity to develop a learning process together with others [29], i.e., a SOC. This approach can also ensure that nurses develop experience-based knowledge generated through many years of working with patients and teams at the same workplace. This applies to their familiarity with technical skills and the caring approach. Experience-based knowledge is also an important basis for person-centered care and patient safety. The working group is an important resource for learning and sharing experiences; the nurse manager is important in that he/she can implement new approaches and strengthen the three SOC dimensions -meaningfulness, manageability and comprehensibility -thus allowing nurses to increase their job satisfaction and create a sustainable working life.
To create a good workplace for nurses, the nurse manager can develop action programs for various activities, such as individual schedules, skills development, and cooperation between nurses and other professionals, to reduce the workload and reinforce clear leadership. The action programs can promote a sustainable working life and prevent nurses from terminating their employment. In this way, nurses can develop experience-based knowledge generated through many years of working with patients and teams at the same workplace. This also applies to familiarity with technical skills and the caring approach. Moreover, experience-based knowledge is an important basis for person-centered care and patient safety.

Strengths
The most important strength of the present study is that it conveys the nurses' perspective; their perceptions are valuable and needed in nursing research. Application of the salutogenic theoretical model of health throughout the various stages in the study was a strength [11]. To obtain a broad and comprehensive description of the study aim, that is, to describe and explore salutary factors promoting a sustainable working life for nurses, nurses from various care units were selected. Thus, nurses from emergency medicine, specialist medicine, surgical care (both inpatient and outpatient) and adult psychiatric inpatient care participated in the study. The current focus on salutary factors expanded our understanding of how to create the best possible working conditions for nurses in hospital settings. In addition, the results theoretically deepen our understanding of the three components of SOC. The researchers' background ( ve of the six researchers are nurses) may also be an advantage in understanding, analyzing and interpreting the success factors promoting a sustainable working life for nurses. The authors are all familiar with and deeply grounded in the salutogenic theory of health, which facilitated both the inductive and deductive analysis process.

Limitations
There is always a certain degree of interpretation when the researcher approaches a text, and therefore the text always has different meanings; this is an important issue regarding the trustworthiness of qualitative content analysis results [20,21]. This may thus constitute a limitation, as it is the present authors' interpretations that formed the basis for the results. One limitation of the present study may also be that all of the participating nurses were female and that they all worked in hospital healthcare. No nurses from community care were included. Another limitation is that no nurses who had already left the profession or who might have been thinking about leaving were included. The transferability of the present results to similar settings in other countries is limited, because health care services are organized differently across settings and countries.

Conclusion
Strong leadership on the part of the nurse manager is an important prerequisite for increasing nurses' job satisfaction and ability to develop a sustainable working life. Nurses must have a sense of identi cation with both the nursing unit and the organization. If nurses are to feel secure and joyful in their work, it is essential that they be acknowledged for their work performance, not only by patients but even by colleagues, other professionals and the nurse manager. In this way, nurses can achieve meaningfulness, manageability and comprehensibility in their work.

Declarations Ethics and Consent to participate
Those who decided to participate in the study gave their written informed consent before the interviews took place. The participants were told that participation was voluntary and that they were free to withdraw at any time with no reason required.   Figure 1 The ease-disease-continuum

Supplementary Files
This is a list of supplementary les associated with this preprint. Click to download. ISSMCOREQChecklistNunstedtetal.pdf