Table 2 Working hours and sickness absence—Prospective cohort analysis

Long working hours (>  48 h per week)

0.40

(0.22–0.73) ***

0.62

(0.26–1.48) ns

0.40

(0.10–1.69) ns

Semi-long working hours (41–48 h per week)

0.56

(0.43–0.73) ***

0.83

(0.60–1.13) ns

0.90

(0.60–1.35) ns

Salary

1.00

(1.00–1.00) ***

1.00

(1.00–1.00) ***

1.00

(1.00–1.00) ns

Temporary contract

0.70

(0.57–0.86) ***

0.74

(0.60–0.92) ***

0.72

(0.55–0.94) *

Multiple job holder

0.94

(0.66–1.35) ns

0.96

(0.67–1.37) ns

0.89

(0.56–1.40) ns

Female

1.56

(1.35–1.81) ***

1.62

(1.39–1.88) ***

1.81

(1.48–2.20) ***

Age

0.98

(0.98–0.99) ***

1.00

(0.99–1.01) ns

0.99

(0.98–1.00) *

On-call shifts

0.95

(0.75–1.20) ns

0.84

(0.65–1.08) ns

0.85

(0.62–1.17) ns

Nordic immigrant

1.51

(1.03–2.23) *

0.77

(0.53–1.12) ns

0.76

(0.47–1.23) ns

Other Western immigrants

1.07

(0.69–1.68) ns

1.14

(0.73–1.80) ns

0.87

(0.46–1.65) ns

Non-Western immigrants

0.92

(0.58–1.44) ns

0.95

(0.61–1.48) ns

0.63

(0.33–1.23) ns

Physician

0.97

(0.72–1.30) ns

1.21

(0.87–1.66) ns

1.03

(0.69–1.54) ns

Patient-oriented other

0.95

(0.76–1.18) ns

1.24

(1.04–1.49) *

1.24

(1.00–1.54) *

Administration/management

0.67

(0.55–0.82) ***

0.91

(0.76–1.10) ns

0.95

(0.76–1.20) ns

Other operations

0.66

(0.48–0.90) ***

1.39

(1.05–1.84) *

1.24

(0.87–1.77) ns

Kitchen/cleaning/orderly

1.35

(0.892.05) ***

1.36

(1.02–1.83) *

0.78

(0.52–1.18) ns

Other job

0.22

(0.16–0.30) ns

0.63

(0.44–0.90) **

0.78

(0.51–1.18) ns

Cons

26.27

0.43

0.21

Variance (random-part)

SE

SE

SE

Level 1: Employee

π2/3

π2/3

π2/3

Level 2: Work unit

0.29

0.00

0.05

0.01

0.00

0.00