Table 2.
Summary RORs in various subgroup analyses
| Characteristic | No of studies | Summary ROR (95 % CI) fixed effects |
P | Summary ROR (95 % CI) random effects |
P | I 2 (%) |
|---|---|---|---|---|---|---|
| Overall | 30 | 1.32 (1.14–1.52) | 1.4 × 10−4 | 1.31 (1.03–1.66) | 0.030 | 53 |
| Outcome | ||||||
| Psychiatric disorders | 20 | 1.37 (1.14–1.62) | 5.4 × 10−4 | 1.30 (0.92–1.66) | 0.143 | 64 |
| Medical disorders | 10 | 1.24 (0.97–1.57) | 0.085 | 1.24 (0.97–1.84) | 0.085 | 0 |
| Types of psychotherapy | ||||||
| CBT | 22 | 1.10 (0.92–1.31) | 0.311 | 1.07 (0.85–1.34) | 0.580 | 19 |
| Supportive or counseling | 3 | 1.44 (1.01–2.05) | 0.046 | 1.44 (1.01–2.05) | 0.046 | 0 |
| Other | 5 | 2.22 (1.62–3.05) | 8.7 × 10−7 | 2.35 (1.10–4.99) | 0.027 | 79 |
| Type of data | ||||||
| Binary | 18 | 1.50 (1.21–1.85) | 2.2 × 10−4 | 1.39 (0.94–2.05) | 0.097 | 21 |
| Continuous | 12 | 1.19 (0.99–1.44) | 0.069 | 1.19 (0.93–1.51) | 0.164 | 62 |
ROR relative odds ratio