Table 1 Differences between participants and non-participants in the study based on register data.
From: Validity of the diagnosis of a single depressive episode in a case register
| Â | Participants in the interview | Non-participants in the interview | P |
|---|---|---|---|
Number | 399 | 1087 | Â |
Median age at first contact (quartiles) | 38.2 (29.5–51.9) | 39.6 (29.3–53.1) | 0.7* |
Gender | Â | Â | Â |
   Men (%) | 140 (35.1) | 417 (38.4) | 0.2** |
   Women (%) | 259 (64.9) | 670 (61.6) |  |
Type of depression (ICD-10, %) | Â | Â | Â |
   Unspecified | 43 (10.8) | 128 (11.8) |  |
   Mild | 65 (16.3) | 195 (17.9) | 0.8** |
   Moderate | 204 (51.1) | 525 (48.3) |  |
   Severe | 87 (21.8) | 239 (22.0) |  |
Type of contact (%) | Â | Â | Â |
   Admission | 232 (58.1) | 558 (51.3) | 0.02** |
   Out-patient | 167 (41.9) | 529 (48.7) |  |
Duration of contact (quartiles) | Â | Â | Â |
   Admission in days | 21.5 (6.0–45.0) | 16.0 (4.0–41.0) | 0.09* |
   Out-patient in days | 70.0 (19.0–188.0) | 88.0 (29.5–210.5) | 0.1* |