Table 4 Factors associated with SRB after forward selection: odds ratios (OR) and 95%-confidence intervals (CI) ¹

Being drunk at least once during last month

No

1.00

**

1.00

**

Yes

2.48

1.32–4.64

2.25

1.04–4.88

Having sex before age of 16

No

1.00

**

1.00

**

Yes

5.97

1.58–22.53

6.41

1.73–23.80

Extroversion

Low

1.00

*

Middle

1.22

0.29–5.10

High

3.50

0.87–14.13

Females

Being drunk at least once during last month

No

1.00

**

Yes

2.41

1.30–4.46

Smoke at least one cigarette per week

No

1.00

***

1.00

*

Yes

3.00

1.66–5.44

2.55

1.20–5.40

Having sex before age of 16

No

1.00

*

1.00

Yes

7.18

1.46–35.38

3.57

0.91–14.02

Extroversion

Low

1.00

*

1.00

**

Middle

1.42

0.48–4.17

2.80

0.56–14.16

High

2.96

1.03–8.48

8.22

1.69–40.03

Religiousness

Extremely important

1.00

*

Unimportant

2.82

1.24–6.45