Table 2 Subgroup analysis for the comparison of recurrence between salpingo-oophorectomy and cystectomy in borderline ovarian tumors
Subgroup analysis | Studies | Pooled results | Heterogeneity | ||
|---|---|---|---|---|---|
Effect size (95% CI) | P value | I2 | P value | ||
Region | OR | ||||
Eastern | 5 | 2.02 (2.21-9.40) | <0.001 | 0% | 0.443 |
Western | 11 | 1.83 (1.42-2.36) | <0.001 | 42.3% | 0.067 |
FIGO stage | OR | ||||
I | 7 | 3.16 (1.92-5.20) | <0.001 | 21.7% | 0.264 |
I-III | 9 | 1.78 (1.35-2.33) | <0.001 | 43.6% | 0.077 |
Sample size | OR | ||||
≥100 | 7 | 1.85 (1.40-2.44) | <0.001 | 36.3% | 0.151 |
<100 | 9 | 2.64 (1.64-4.23) | <0.001 | 47.1% | 0.057 |
Publication year | OR | ||||
After 2010 | 10 | 1.89 (1.42-2.50) | <0.001 | 41.0% | 0.084 |
Before 2010 | 6 | 2.43 (1.56-3.79) | <0.001 | 47.0% | 0.093 |
Follow-up period | OR | ||||
≥50 months | 8 | 1.84 (1.37-2.47) | <0.001 | 57.9% | 0.020 |
<50 months | 7 | 2.16 (1.38-3.39) | 0.001 | 7.1% | 0.374 |