Table 2 Categorical predictors of breast cancer among premenopausal women in Nigeria, 1998–2000
From: Waist–hip ratio and breast cancer risk in urbanized Nigerian women
Predictor | Cases | Controls | Odds ratio | 95% confidence interval | P value |
|---|---|---|---|---|---|
Waist–hip ratio | |||||
≤ 0.77 | 37 (30.8) | 64 (35.6) | 1.00 | ||
>0.77 to ≤ 0.85 | 45 (37.5) | 78 (43.3) | 0.88 | 0.50–1.55 | 0.65 |
>0.85 | 38 (31.67) | 38 (21.2) | 1.41 | 0.80–2.78 | 0.22 |
Family history of breast cancer | |||||
Yes | 11 (9.17) | 14 (7.78) | 1.37 | 0.58–3.22 | 0.48 |
No | 109 (90.83) | 166 (92.22) | |||
Obesity (body mass index ≥ 30) | |||||
Yes | 29 (24.17) | 25 (13.89) | 1.52 | 0.82–2.82 | 0.18 |
No | 91 (75.83) | 155 (86.11) | |||
Having ever breastfed | |||||
Yes | 102 (85.71) | 133 (73.89) | 1.04 | 0.50–2.18 | 0.91 |
No | 17 (14.29) | 47 (26.11) | |||
Use of contraceptive pill | |||||
Yes | 53 (45.30) | 62 (34.44) | 0.84 | 0.51–1.39 | 0.50 |
No | 64 (54.70) | 118 (65.56) | |||
Social status | |||||
Low | 54 (46.15) | 98 (54. 75) | 1.00 | 0.15 | |
Middle | 60 (51.28) | 80 (44.69) | 1.36 | 0.85–2.18 | |
High | 3 (2.56) | 1 (0.56) | 5.44 | 0.55–53.62 |