Pre- and post-test probabilities of depression by result of GP-administered and self-administered depression screening.
| GP-administered depression screening | Self-administered depression screening | ||||
|---|---|---|---|---|---|
| Pre-test Probabilty (%) | Post-test probability if screened positive (%) | Post-test probability if screened negative (%) | Post-test probability if screened positive (%) | Post-test probability if screened negative (%) | |
| Severe depression | 8/423 | 2/78 | 5/293 | 8/215 | 0/205 |
| (1.9) | (2.6) | (1.7) | (3.7) | (0) | |
| Moderate/severe depression | 57/423 | 21/78 | 32/293 | 53/215 | 4/205 |
| (13.5) | (26.9) | (10.9) | (24.7) | (2.0) | |
| Mild/moderate/severe depression | 150/423 | 45/78 | 92/293 | 122/215 | 27/205 |
| (35.5) | (57.7) | (31.4) | (56.7) | (13.2) | |
| No depression | 273/423 | 33/78 | 201/293 | 93/215 | 178/205 |
| (64.5) | (42.3) | (68.6) | (43.3) | (86.8) | |
Numbers not equal to 428 as per Table 1 because of missing data.