Table 3 Logistic regression model on treatment status

Nordic born

2.96 (1.58–5.56)

0.001

2.85 (1.42–5.73)

0.003

Education: More than primary school

0.65 (0.45–0.93)

0.018

0.73 (0.48–1.11)

0.140

Age at baseline

0.99 (0.97–1.01)

0.248

0.98 (0.96-1.00)

0.103

Length of imprisonment

3–6

3.46 (1.65–7.25)

0.001

3.44 (1.58–7.52)

0.002

6–12

7.02 (3.60-13.68)

< 0.001

6.33 (3.11–12.89)

< 0.001

> 12

6.40 (3.42–11.97)

< 0.001

8.87 (4.48–17.55)

< 0.001

IDU

Daily/almost daily

3.41 (2.23–5.21)

< 0.001

2.58 (1.51–4.39)

< 0.001

1–2 per week

2.40 (1.17–4.95)

0.017

2.24 (0.96–5.23)

0.063

1–3 per month

1.93 (0.83–4.49)

0.126

2.06 (0.79–5.38)

0.138

Polydrug use

3.56 (2.36–5.36)

< 0.001

2.19 (1.34–3.60)

0.002

Cons.

0.07 (0.02–0.22)

< 0.001