Table 2.
Multivariate analysis of factors associated with the presence of HMB
| Factors | Adjusted OR a | 95% CI | P value |
|---|---|---|---|
| Uterine fibroids | |||
| Yes | 2.12 | 1.42–3.16 | < 0.001 |
| No | Reference | ||
| Age (years) | |||
| ≤ 24 | 1.86 | 1.13–3.08 | 0.015 |
| 25–29 | 1.79 | 1.09–2.94 | 0.022 |
| 30–34 | 1.58 | 0.97–2.58 | 0.067 |
| 35–39 | 1.75 | 1.07–2.89 | 0.027 |
| 40–44 | 1.00 | 0.58–1.73 | 0.989 |
| ≥ 45 | Reference | ||
| Alcohol consumption | |||
| Never | Reference | ||
| Occasionally | 1.37 | 1.09–1.73 | 0.007 |
| Regularly | 2.78 | 1.20–6.46 | 0.017 |
| Former user | 0.51 | 0.06–4.01 | 0.519 |
| Number of abortions | |||
| 0 | Reference | ||
| 1 | 1.16 | 0.85–1.60 | 0.357 |
| 2 | 1.49 | 0.97–2.27 | 0.066 |
| ≥ 3 | 3.44 | 1.82–6.49 | < 0.001 |
CI confidence interval, HMB heavy menstrual bleeding, OR odds ratio
aOR calculated in multivariate logistic regression analyses with a backward elimination method based on maximum likelihood