Table 2 Odds Ratio and 95% confidence interval of invasive breast cancer by age bands and dioxin exposure categories
Dioxin exposure | Cases | Controls | OR* (95% CI†) |
|---|---|---|---|
Women aged 20–59 years | |||
Very low | 41 | 225 | 1.0 |
Low | 81 | 414 | 1.06 (0.72–1.56) |
Intermediate | 64 | 279 | 1.25 (0.82–1.89) |
High | 11 | 67 | 0.88 (0.43–1.79) |
Women aged 60 years and over | |||
Very low | 50 | 228 | 1.0 |
Low | 111 | 558 | 0.90 (0.63–1.29) |
Intermediate | 72 | 339 | 0.96 (0.66–1.41) |
High | 4 | 60 | 0.31 (0.08–0.89) |