Table III.
Findings of the present meta-analysis of 11 studies, with subgroup analysis based on age of the women (over or under age 54 years).
| Disease site | Studies included in analysis | Number of studies | Odds ratio (95% confidence interval) | Z | χ2 | I2 |
|---|---|---|---|---|---|---|
| Endometrial cancer | All endometrial cancer studies | 5 | 2.79 (1.31–5.95) | 2.65 (P < 0.008) | 11.33 (P < 0.02) | 65% |
| Excluding samples that included women over age 54 years (Zucchetto et al., 2009) | 4 | 4.05 (2.42–6.76) | 5.34 (P < 0.00001) | 0.65 (P < 0.88) | 0% | |
| Ovarian cancer | All ovarian cancer studies | 3 | 1.41 (0.93–2.15) | 1.62 (P < 0.11) | 2.39 (P < 0.30) | 16% |
| Excluding samples that included women over age 54 years (Olsen et al., 2008; Bodmer et al., 2011) | 1 | 2.52 (1.08–5.89) | 2.14 (P < 0.03) | n/a | n/a | |
| Breast cancer | All breast cancer studies | 3 | 0.95 (0.64–1.39) | 0.27 (P < 0.78) | 1.42 (P < 0.06) | 0% |
| Excluding samples of women over age 54 years (Anderson et al., 1997) | 2 | 0.78 (0.46–1.32) | 0.93 (P < 0.35) | 0.26 (P < 0.61) | 0% |