Table 4.
Predictive factors for breast malignancy
| Univariate | Multivariate | |||||
|---|---|---|---|---|---|---|
| OR | 95% CI | P value | OR | 95% CI | P value | |
| Age (years) | 1.06 | 1.02–1.10 | 0.002 | 1.06 | 1.02–1.10 | 0.003 |
| History of breast cancer | 0.60 | 0.17–10 | 0.422 | |||
| Positive family history | 0.82 | 0.29–2.30 | 0.702 | |||
| Presenting symptoms | ||||||
| None | Ref. | |||||
| Pain | 0.00 | NA. | 0.999 | 0.00 | NA. | 0.999 |
| Palpable mass | 3.10 | 1.07–9.03 | 0.038 | 4.86 | 1.14–20.66 | 0.032 |
| Skin abnormality | 1.55 | 0.17–14.20 | 0.698 | 2.16 | 0.19–25.20 | 0.538 |
| Nipple discharge | 3.65 | 1.18–11.28 | 0.025 | 4.44 | 1.13–17.50 | 0.033 |
| Clinical classification | ||||||
| No abnormalities | Ref. | |||||
| Benign | 1.27 | 0.44–3.70 | 0.657 | 0.68 | 0.17–2.63 | 0.572 |
| Uncertain benign | 0.95 | 0.25–3.64 | 0.935 | 0.39 | 0.08–1.95 | 0.250 |
| Uncertain malignant | 4.16 | 1.32–13.11 | 0.015 | 1.15 | 0.26–5.06 | 0.858 |
| Breast density | ||||||
| Mostly fatty | Ref. | |||||
| Some density | 0.70 | 0.24–2.06 | 0.519 | |||
| Moderately dense | 0.49 | 0.25–1.57 | 0.230 | |||
| Extremely dense | 0.34 | 0.04–3.12 | 0.343 | |||
Univariate and multivariate logistic regressions.
CI, confidence interval; NA, not applicable; OR, odds ratio; Ref, reference.