Table 2. Correlation between clinical features of major depression obtained from a structured interview and medical records.
| Medical records* | Interview | Kappa | |||
| Yes(%) | No(%) | Yes(%) | No(%) | ||
| Family history | 409 (20.8) | 1482 (75.2) | 630 (32.0) | 1287 (65.3) | +0.62 |
| Fatigue/loss of energy | 1796 (91.2) | 55 (2.8) | 1797 (91.2) | 138 (7.0) | +0.17 |
| Appetite/weight loss | 1351 (68.6) | 275 (14.0) | 1682 (85.4) | 253 (12.8) | +0.48 |
| Appetite/weight gain | 175 (8.9) | 1196 (60.7) | 224 (11.4) | 1711 (86.9) | +0.37 |
| Insomnia | 1771 (89.9) | 75 (3.8) | 1781 (90.7) | 148 (7.5) | +0.14 |
| Hypersomnia | 203 (10.3) | 1201 (61.0) | 251 (12.7) | 1684 (85.5) | +0.40 |
| Psychomotor retardation | 1169 (59.3) | 393 (19.9) | 1434 (72.8) | 501 (25.4) | +0.21 |
| Psychomotor agitation | 1280 (65.0) | 288 (14.6) | 1400 (71.1) | 535 (27.2) | +0.24 |
| Difficulty concentrating | 1543 (78.3) | 137 (7.0) | 1742 (88.4) | 193 (9.8) | +0.18 |
| Suicidal ideation/acts | 1342 (68.1) | 310 (15.7) | 1423 (72.2) | 405 (20.6) | +0.41 |
| Irritable/angry | 1266 (64.3) | 354 (18.0) | 1416 (71.9) | 514 (26.1) | +0.31 |
| Crying a lot | 1230 (62.4) | 400 (20.3) | 1262 (64.1) | 667 (33.9) | +0.46 |
| Nervous/jittery/anxious | 1695 (86.0) | 142 (7.2) | 1730 (87.8) | 200 (10.2) | +0.20 |
| Feelings interfere with daily tasks | 1767 (89.7) | 119 (6.0) | 1616 (82.0) | 309 (15.7) | +0.40 |
Kappa is Cohen's kappa statistic (11), all values of which are significant at P<0.0001.
*Sample size varies because of missing data from medical records.