Table 1 Baseline characteristics of the study population

N

170

340

Age at baseline, years

41.1 (10.4)

40.3 (10.8)

0.41

Male sex, %

74

43.5

148

43.5

1.00

Born in Sweden, %

135

79.4

259

76.2

0.41

Swedish citizen, %

161

94.7

320

94.1

0.79

Marital status, %

0.39

 Never married

63

37.1

135

39.7

 Married/Cohabiting

57

33.5

118

34.7

 Divorced

47

27.7

80

23.5

 Widowed

3

1.8

7

2.1

Sick leave days last year

113.4 (132.2)

69.7 (113.5)

<  0.0005

Sick leave diagnosis^*

<  0.05

 Score <  0, %

148

87.1

301

88.5

 Score ≥ 0, %

22

12.9

39

11.5

Propensity score

170

0.301 (0.173)

340

0.259 (0.139)

<  0.005