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Table 3 Risk factor distributions by ethnic group overall (not divided by diagnosis). Odds ratios for each risk factor by ethnic group, relative to non-Jewish whites

From: A population-based audit of ethnicity and breast cancer risk in one general practice catchment area in North London, UK: implications for practice

Factor Ashkenazi Sephardi Asian
Breastfeeding 1.42 (1.14–1.76) 2.83 (1.53–5.23) 3.13 (2.01–4.87)
Menopause 0.92 (0.61–1.40) 1.23 (0.38–3.97) 1.42 (0.67–2.99)
OC use 1.06 (0.81–1.40) 0.76 (0.38–1.51) 0.26 (0.17–0.42)
HRT use 1.74 (1.30–2.32) 2.05 (1.00–4.20) 1.84 (1.04–3.24)