Table 1.
Descriptive statistics of study participants and prisons
| Variables | N | % | Mean (SD) |
|---|---|---|---|
| Patient level variables | |||
| Contact with prison health services | |||
| Yes | 945 | 66 | |
| No | 480 | 34 | |
| Age | 1, 433 | 34.7(10.7) | |
| Sex | |||
| Female | 78 | 5 | |
| Male | 1, 376 | 95 | |
| Drug misuse outside prison | |||
| No | 706 | 50 | |
| Rarely | 126 | 9 | |
| Sometimes | 251 | 18 | |
| Often | 160 | 11 | |
| All the time | 174 | 12 | |
| Sleep problems | |||
| No | 280 | 20 | |
| Rarely | 166 | 12 | |
| Sometimes | 393 | 27 | |
| Often | 298 | 21 | |
| All the time | 293 | 20 | |
| Physical health | |||
| Excellent/very good | 460 | 32 | |
| Good | 570 | 39 | |
| Not so good | 251 | 17 | |
| Poor | 166 | 12 | |
| Mental health | |||
| Excellent/very good | 493 | 34 | |
| Good | 415 | 29 | |
| Not so good | 289 | 20 | |
| Poor | 242 | 17 | |
| Education | |||
| Compulsory/none | 524 | 37 | |
| Secondary education | 642 | 45 | |
| University/college education | 255 | 18 | |
| First language | |||
| Scandinavian | 972 | 68 | |
| European | 221 | 15 | |
| Non-European | 237 | 17 | |
| Type of imprisonment | |||
| Serving sentence | 1, 113 | 77 | |
| Remand prisoner | 284 | 19 | |
| Preventive detention | 54 | 4 | |
| Prison level variables | |||
| Full time staff equivalents/100 prisoners | 29 | 3.2(1.6) | |
| Capacity (number of prisoners) | 29 | 71.2(77.5) | |
| Prison type | |||
| Open prison | 9 | 31 | |
| Closed prison | 15 | 52 | |
| Mixed prison | 5 | 17 | |