Table 5 Pre-post comparisons regarding to other noise-related topics

Knowledge and awareness

 The World Health Organization recommends that the noise level in the hospital should not exceed 35–40 dBA (unit for noise level). The example "room ventilator" = 35 dBA should give you an orientation. Do you think this guideline is implemented most of the time?

59

1

2

0.132

0.199 [0.030, 0.430]

47

1

2

0.008^d

0.391 [0.110, 0.610]

 Do you experience the sounds on the ICU as too loud?

62

3

3

0.868

0.007 [0.002, 0.290]

50

3

3

1.000

0.021 [0.005, 0.310]

 Do you think it would be possible to reduce noise levels on the ICU, by changing your own behavior?

62

3

3

0.722

0.003 [0.005, 0.270]

50

3

3

0.988

0.017 [0.007, 0.330]

Thematization

 Do you think it is very important to thematize noise on ICU?

62

4

4

0.042^d

0.256 [0.040, 0.470]

50

4

4

0.594

0.082 [0.000, 0.330]

 Do you talk with your colleagues about the ICU ambient noise?

62

3

3

0.395

0.097 [0.004, 0.350]

50

3

3

0.882

0.029 [0.006, 0.320]

 Is the ambient noise on the ICU an issue in discussions with your superiors?

62

2

2

1.000

0.023 [0.002, 0.280]

49

2

2

0.916

0.053 [0.007, 0.320]

 Do you talk with your family/friends about the noise on the ICU?

61

2

2

0.005^d

0.344 [0.110, 0.540]

50

2

2

0.858

0.028 [0.003, 0.330]

 Are you addressed by patients or their dependents about the noise levels on the ICU?

61

2

2

0.047^d

0.299 [0.070, 0.510]

50

2

2

0.184

0.194 [0.010, 0.470]

Subjective noise-sensitivity

 Are you seeking increased for calm after a working shift on the ICU?

62

3

3

0.614

0.037 [0.006, 0.290]

50

3

3

0.771

0.052 [0.004, 0.330]

 Do you feel being lesser in the mood for listening to music after working?

61

2

2

0.283

0.170 [0.010, 0.410]

49

2

2

0.819

0.049 [0.005, 0.330]

 Compared to other people who don´t work on the ICU: Do you react more sensitive to sounds after having had a shift on the ICU?

56

3

3

0.260

0.104 [0.006, 0.360]

47

3

3

0.276

0.135 [0.005, 0.390]

Attitude towards alternative alarm systems

 Do you think, vibrating alarm signals (e.g. by a smart watch) could replace auditive ones (e.g. a call system)?

61

3

3

0.771

0.043 [0.003, 0.310]

50

3

3

0.776

0.024 [0.003, 0.310]

 Do you think, visible alarm signals (e.g. by a smart watch) could replace auditive ones (e.g. a call system)?

61

3

2

0.154

0.155 [0.008, 0.400]

49

3

3

0.617

0.064 [0.005, 0.350]