Table 1 Description of the study population according to covariates and occupational factors in 2006 and incidence of mental disorders in 2010

Covariates in 2006

Age (years)

ns

  <30

286

11.97

17.94

257

11.04

17.64

  30-39

701

29.34

31.71

647

27.79

28.57

  40-49

832

34.83

32.79

866

37.20

33.26

  ≥50

570

23.86

17.56

558

23.97

20.53

Occupation

***

  Managers/professionals

401

16.80

16.66

318

13.67

11.86

  Associate professionals/technicians

602

25.22

25.71

648

27.85

26.38

  Clerks/service workers

327

13.70

17.30

1121

48.17

50.24

  Manual workers

1057

44.28

40.13

240

10.31

11.53

Living alone

528

22.10

20.30

678

29.12

23.70

*

Presence of child(ren) under 3 y

289

12.10

14.88

200

8.59

10.67

***

Low social support outside work

626

26.20

26.43

739

31.74

29.81

*

Life events during childhood (one or more)

1077

45.08

45.80

1122

48.20

48.73

ns

Life events 2002–2006 (one or more)

207

8.67

8.49

252

10.83

10.76

*

High psychological demands

998

41.77

41.80

840

36.08

35.66

***

Low decision latitude

780

32.65

35.15

728

31.27

32.49

ns

Low social support

565

23.65

23.95

506

21.74

21.93

ns

Low reward

716

29.97

31.12

732

31.44

31.64

ns

Emotional demands

740

30.98

33.43

1084

46.56

46.45

***

Role conflict

1084

45.37

46.86

1066

45.79

45.43

ns

Ethical conflict

857

35.87

35.92

654

28.09

27.86

***

Tensions with the public

959

40.14

41.83

1080

46.39

46.75

**

Job insecurity

520

21.77

22.22

468

20.10

21.10

ns

Work-life imbalance

750

31.39

32.64

693

29.77

29.83

ns

Working time/hours

Long working hours

1008

42.19

42.41

523

22.47

21.94

***

Night work

595

24.91

25.77

230

9.88

10.44

***

Shift work

414

17.33

17.96

322

14.26

15.35

*

Low predictability

794

33.24

34.19

526

22.59

23.66

***

Physical work factors

Biomechanical exposure

1040

45.53

42.89

718

30.84

32.38

***

Physical exposure

1242

51.99

49.63

597

25.64

26.33

***

Chemical exposure

1104

46.21

44.07

579

24.87

26.56

***

Mental disorders in 2010

MDD

61

2.55

2.53

114

4.90

4.75

***

GAD

66

2.76

2.81

120

5.15

4.58

**