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Table 3 Pre-test and post-test mean values of Burnout, Mindfulness, and Self-Compassion in MBI and control groups

From: Effectiveness of mindfulness-based interventions on burnout and self-compassion among critical care nurses caring for patients with COVID-19: a quasi-experimental study

Scale Subcategories

MBI Group

Control Group

Pre-test

Post-test

Cohen’s d (effect size)

Pre-test

Post-test

t2

p

Cohen’s d (effect size)

Pre-test

Post-test

t2

p

Mean

SD

Mean

SD

MBI group (Pre vs. Post test)

Mean

SD

Mean

SD

t1

p

t1

P

Post test (MBI vs. control)

MBI-HSS

 Emotional Exhaustion

31.77

8.88

15.47

4.44

11.041*

< 0.001*

4.101

33.37

10.68

32.43

8.87

0.418

0.679

0.631

0.531

9.366*

< 0.001*

1.912

 Depersonalization

10.67

6.96

5.43

3.68

3.584*

0.001*

1.331

12.30

6.68

12.13

5.98

0.099

0.922

0.927

0.358

5.224*

< 0.001*

1.120

 Personal Achievement a

25.87

8.33

39.60

3.70

10.370*

< 0.001*

3.851

25.30

5.21

26.03

5.51

0.491

0.627

0.316

0.753

11.202*

< 0.001*

2.463

FFMQ

 Observing

25.93

3.81

27.93

4.0

2.484*

0.019*

5.268

24.53

2.99

24.17

3.16

0.446

0.659

1.582

0.119

4.046*

< 0.001*

1.190

 Describing

23.93

2.29

30.0

2.80

8.671*

< 0.001*

0.923

24.67

4.16

23.27

3.31

1.544

0.133

0.847

0.401

8.501*

< 0.001*

2.033

 Acting with Awareness

25.50

3.85

32.23

2.08

9.085*

< 0.001*

3.220

25.97

4.12

24.33

3.25

1.627

0.115

0.453

0.652

11.211*

< 0.001*

2.431

 Non-judging

22.03

3.93

25.97

2.94

4.476*

< 0.001*

3.374

21.50

4.47

22.30

3.54

0.666

0.511

0.491

0.626

4.360*

< 0.001*

1.037

 Non-reactivity

19.90

3.92

20.90

2.80

1.216

0.234

1.662

19.53

4.07

20.33

3.44

0.854

0.400

0.355

0.724

0.700

0.486

0.166

 Total FFMQ b

117.30

7.86

137.03

5.93

14.184*

< 0.001*

0.452

116.20

8.06

114.40

7.44

0.755

0.456

0.535

0.594

13.027*

< 0.001*

3.042

SCS

 Self-kindness

15.33

2.68

18.23

2.27

4.443*

< 0.001*

4.858

16.33

2.48

16.63

2.88

0.384

0.704

1.499

0.139

2.389*

0.020*

0.556

 Self-judgment

14.0

3.14

17.57

1.61

6.410*

< 0.001*

1.650

15.27

3.27

16.23

2.56

1.319

0.197

1.531

0.131

2.417*

0.019*

0.523

 Common humanity

12.50

1.96

15.20

1.69

6.723*

< 0.001*

2.381

11.70

2.20

12.03

2.53

0.619

0.541

1.487

0.142

5.780*

< 0.001*

1.253

 Isolation

12.20

2.63

15.13

1.66

5.757*

< 0.001*

2.497

11.60

1.79

11.07

2.15

1.067

0.295

1.032

0.307

8.212*

< 0.001*

1.888

 Mindfulness

13.20

2.96

14.30

1.37

1.699

0.100

2.138

12.87

2.29

12.83

2.12

0.070

0.944

0.488

0.214

3.185*

0.003*

0.693

 Over- identified

10.83

2.21

14.07

2.05

5.747*

< 0.001*

0.631

11.60 ± 

2.50

10.20 ± 

2.23

2.269*

0.031*

1.258

0.214

6.984*

< 0.001*

1.735

 Total SCS b

78.07

4.57

94.50

3.83

13.080*

< 0.001*

2.134

79.37

4.57

79.0

4.57

0.295

0.770

1.102

0.275

14.235*

< 0.001*

3.392

  1. MBI Mindfulness Interventions Group, MBI-HSS Maslach Burnout Inventory-Human Services Survey for Medical Personnel, FFMQ Five Facet Mindfulness Questionnaire, SCS Self-Compassion Scale, a Scored in opposite direction emotional exhaustion and depersonalization, b Items with negative responses were reversed for total FFMQ & SCS score calculation, t1: Student t-test for comparing between study and control in each pre and post-intervention, t2: Paired t-test comparing between pre and post-intervention in each study and control, *: Statistically significant at p ≤ 0.05, Cohen’s d: Small effect at < 0.5, Medium effect at 0.5- < 0.8, Large effect at > 0.8
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BMC Nursing

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