Table 2 Relationships between various risk factors and frequent psychotropic drug use in 1,257 young adults aged 18–29: crude relative risk and 95% CI

Women (vs. men)

712

56.6

2.08***

1.44–3.01

Socio-occupational category: vs. managers, intellectual professionals (73)

Intermediate professionals

58

4.6

0.94

0.20–4.38

Manual workers

150

11.9

2.20

0.71–6.81

Employees

262

20.8

2.93*

1.01–8.50

Farmers, craftsmen and tradesmen

17

1.4

3.70

0.74–18.4

Other occupations or unknown

92

7.3

1.87

0.55–6.34

Students

463

36.8

2.52§

0.89–7.16

Housewives

53

4.2

5.05**

1.53–16.7

Unemployed people

89

7.1

1.94

0.57–6.58

Educational level: vs. university (413)

Middle and high school

750

60.0

0.93

0.65–1.35

Primary school

94

7.5

1.11

0.58–2.14

Underweight vs. 'normal' (873)

95

9.8

1.31

0.73–2.36

Overweight vs. 'normal' (873)

289

24.9

0.81

0.53–1.25

Current smoking

476

37.9

1.52*

1.08–2.13

Alcohol abuse

97

7.7

1.46

0.83–2.57

Not-good health status

264

21.0

3.54***

2.49–5.05

Diagnosed diseases vs. disease- free (724)

Musculoskeletal disorders (MSD)

193

15.3

1.96**

1.22–3.15

Other diseases

198

15.8

1.82**

1.13–2.94

Both MSD and other diseases

142

11.3

3.90***

2.47–6.17

Hearing disability

61

4.8

1.40

0.82–3.18

Visual disability

128

10.2

2.11**

1.33–3.35

Cognitive disability (at least one)

336

26.7

2.04***

1.44–2.89

Self-reported personality traits

Worried

347

27.6

2.90***

2.06–4.09

Not sociable

557

44.3

1.34§

0.95–1.87

Not calm

880

70.0

1.99***

1.30–3.03

Aggressive

116

9.2

1.68*

1.01–2.78

Solitary

165

13.0

0.69

0.39–1.20

Not organised

861

68.5

1.02

0.71–1.46

Nervous

441

35.1

3.11***

2.20–4.39

Sad

56

4.5

5.24***

2.98–9.23

Living situation: vs. living with family or in a couple (1012)

With friends

20

1.7

0.87

0.20–3.78

Alone

147

12.5

1.60§

1.00–2.56

Lack of family support

116

9.2

2.29***

1.42–3.67

Low perceived income

603

48.0

1.20

0.86–1.68