Table 2. Association between type of minimally invasive radical hysterectomy and recurrence in subgroup analysis (n=20).
| Category | No. of studies | Summary OR (95% CI) | Heterogeneity, I2 (%) | p | Model used | |
|---|---|---|---|---|---|---|
| All | 20 | 1.19 (0.91–1.55) | 0.0 | 0.613 | Fixed effect | |
| Published year | ||||||
| Before 2015 | 9 | 1.30 (0.70–2.39) | 0.0 | 0.874 | Fixed effect | |
| After 2015 | 11 | 1.16 (0.87–1.56) | 23.1 | 0.224 | Fixed effect | |
| Study size | ||||||
| Large (both arm >40) | 8 | 1.11 (0.81–1.52) | 0.0 | 0.529 | Fixed effect | |
| Small (at least 1 arm <40) | 12 | 1.40 (0.86–2.29) | 0.0 | 0.486 | Fixed effect | |
| Quality of study methodology | ||||||
| High quality | 9 | 1.33 (0.81–2.19) | 0.0 | 0.479 | Fixed effect | |
| Low quality | 11 | 1.14 (0.83–1.55) | 0.0 | 0.503 | Fixed effect | |
| Country | ||||||
| Asia | 8 | 1.23 (0.86–1.76) | 0.0 | 0.544 | Fixed effect | |
| USA | 4 | 1.46 (0.52–4.10) | 0.0 | 0.726 | Fixed effect | |
| Europe | 8 | 1.09 (0.71–1.67) | 22.9 | 0.247 | Fixed effect | |
CI, confidence interval; OR, odd ratio.