Table 2.
Odds ratio estimates for high-risk mammographic patterns according to smoking status
| Cases | Controls | |||||
| Smoking status | (P2+DY) | (N1+P1) | OR | 95% Cl | OR* | 95% Cl* |
| All women (n) | ||||||
| Never | 121 | 120 | 1.00 | - | 1.00 | - |
| Past | 62 | 53 | 1.18 | 0.73-1.90 | 1.02 | 0.55-1.90 |
| Current | 20 | 30 | 0.65 | 0.34-1.24 | 0.37 | 0.14-0.94 |
| Postmenopausal women (n) | ||||||
| Never | 89 | 91 | 1.00 | - | 1.00 | - |
| Past | 45 | 46 | 0.99 | 0.54-1.82 | 1.27 | 0.60-2.67 |
| Current | 14 | 28 | 0.37 | 0.15-0.90 | 0.39 | 0.13-1.11 |
*Adjusted for menopausal status, parity, hormone replacement therapy, history of benign breast diseases, body mass index and waist:hip ratio in the whole study population; adjusted for parity, hysterectomy, body mass index, and waist:hip ratio in postmenopausal women. OR, odds ratio; CI, confidence interval.