Table 2.
Regulated variable | Heterogeneity test | Subgroup | Number of studies | 95% CI | Two-tailed test | |||
---|---|---|---|---|---|---|---|---|
χ2 | P | I 2 | Z | P | ||||
Outcome indicators | 59.87 | <0.00001 | 95% | SDS | 9 | −5.80 [−7.72, −3.89] | 5.94 | <0.00001 |
EPDS | 6 | −3.13 [−4.42, −1.85] | 4.77 | <0.00001 | ||||
HAMD | 5 | −2.47 [−3.54, −1.37] | 4.35 | <0.00001 | ||||
HADS | 2 | −2.79 [−4.29, −1.29] | 3.64 | 0.0003 | ||||
Freq. (times/week) | 11.8 | 0.008 | 74.6% | 1 | 1 | −0.33 [−0.84, 0.18] | 1.26 | 0.21 |
2 | 5 | −0.93 [−1.49, −0.37] | 3.26 | 0.001 | ||||
3–4 | 10 | −1.53 [−2.01, −1.05] | 6.12 | <0.00001 | ||||
5 | 6 | −1.20 [−1.87, −0.53] | 3.49 | 0.0005 | ||||
Duration (weeks) | 17.8 | 0.0005 | 83.1% | 8 | 5 | −1.01 [−1.62, −0.38] | 3.21 | 0.001 |
9–10 | 4 | −0.26 [−0.64, 0.12] | 1.35 | 0.18 | ||||
12 | 8 | −1.69 [−2.31, −1.07] | 5.36 | <0.00001 | ||||
16 | 5 | −1.33 [−2.09, −0.56] | 3.38 | 0.0007 | ||||
Experimental subject | 1.61 | 0.45 | 0% | With other diseases | 3 | −1.89 [−3.23, −0.56] | 2.78 | 0.005 |
Ordinary depression | 10 | −1.21 [−1.71, −0.71] | 4.73 | <0.00001 | ||||
Postpartum depression | 9 | −1.68 [−2.34, −1.02] | 4.96 | <0.00001 |