Table 3 Multinominal logistic regression analysis comparing background variables between classes

Class 2

Age at discharge (years)

**

0.98

[0.97, 0.99]

Length of stay (years)

**

0.93

[0.89, 0.97]

Male sex (ref. = female)

0.83

1.05

[0.68, 1.61]

Pre-index crime substance abuse

**

3.21

[2.20, 4.70]

Pre-index crime conviction(s)

**

2.39

[1.60, 3.58]

Violent index crime

0.20

0.72

[0.44, 1.19]

Special court supervision

0.93

0.88

[0.05, 14.88]

Born in Sweden

0.78

0.95

[0.66, 1.36]

Presence of any psychosis

0.18

1.27

[0.90, 1.80]

Presence of any personality disorder

0.18

1.33

[0.87, 2.03]

Class 3

Age at discharge (years)

**

0.95

[0.94, 0.97]

Length of stay (years)

**

0.81

[0.75, 0.88]

Male sex (ref. = female)

0.49

0.84

[0.52, 1.37]

Pre-index crime substance abuse

0.55

0.88

[0.58, 1.33]

Pre-index crime conviction

0.18

1.34

[0.87, 2.06]

Violent index crime

0.11

0.61

[0.33, 1.12]

Special court supervision

0.09

1.54

[0.94, 2.53]

Born in Sweden

0.33

0.81

[0.54, 1.23]

Presence of any psychosis

0.15

0.74

[0.50, 1.12]

Presence of any personality disorder

0.75

0.92

[0.53, 1.57]

Class 4

Age at discharge (years)

**

0.93

[0.91, 0.95]

Length of stay (years)

**

0.88

[0.82, 0.95]

Male sex (ref. = female)

0.59

1.17

[0.66, 2.07]

Pre-index crime substance abuse

0.34

1.25

[0.79, 1.97]

Pre-index crime conviction

0.43

1.21

[0.76, 1.94]

Violent index crime

0.23

0.67

[0.34, 1.30]

Special court supervision

0.32

1.32

[0.76, 2.29]

Born in Sweden

**

0.53

[0.34, 0.83]

Presence of any psychosis

0.09

0.68

[0.43, 1.06]

Presence of any personality disorder

*

1.70

[1.01, 2.86]