Variable for sub-analysis | Number of studies | Sample size (N) | PRR, 95%CI, Higgins test |
---|---|---|---|
Time of depression measurement | |||
 The first one to six months | 5 | 18,310 | 1.82 (1.54, 2.15), I2 = 63.2% |
 The first one to five years | 6 | 3944 | 1.13 (0.94, 1.35), I2 = 52.5% |
Study design | |||
 Longitudinal | 5 | 20,784 | 1.38 (1.12, 1.69), I2 = 85.2% |
 Cross sectional | 6 | 1470 | 2.32 (1.58, 3.40), I2 = 50.5% |
Sample size | |||
  < =384 | 6 | 1470 | 2.32 (1.49, 3.60), I2 = 55.7% |
  > 384 | 5 | 20,784 | 1.42 (1.16, 1.74), I2 = 89.9% |
Type of screening tool used | |||
 Diagnostic tool | 3 | 16,968 | 1.75 (1.54, 2.00), I2 = 31.7% |
 Screening tool | 8 | 5286 | 1.40 (1.13, 1.75), I2 = 78.5% |
Estimation method | |||
 Odds ratio | 5 | 1192 | 2.77 (1.72, 4.46), I2 = 58.8% |
 Relative risk | 4 | 19,754 | 1.37 (1.09, 1.72), I2 = 89.1% |
 Hazard ratio | 2 | 1308 | 1.44 (1.19, 1.74), I2 = 0.0% |