From: Active smoking and risk of breast cancer in a Danish nurse cohort study
Never | Former | Current | Ever | ||
---|---|---|---|---|---|
N | Ref. | HR (95% CI) | HR (95% CI) | HR (95% CI) | |
Estrogen Receptor (ER) Status | |||||
ER + | 851 | 1.00 | 1.06 (0.89–1.26) | 1.28 (1.09–1.51) | 1.17 (1.01–1.36) |
ER - | 172 | 1.00 | 1.11 (0.77–1.62) | 1.11 (0.77–1.61) | 1.11 (0.81–1.53) |
Receptor Status | |||||
ER+/PR+ | 366 | 1.00 | 1.17 (0.90–1.53) | 1.36 (1.06–1.76) | 1.27 (1.02–1.59) |
ER+/PR- | 111 | 1.00 | 1.56 (0.94–2.59) | 1.92 (1.19–3.10) | 1.75 (1.12–2.71) |
ER−/PR- | 107 | 1.00 | 1.01 (0.63–1.63) | 1.15 (0.73–1.82) | 1.08 (0.72–1.61) |
ER−/PR+ | 10 | 1.00 | 1.76 (0.41–7.56) | 0.49 (0.08–3.01) | 1.02 (0.26–4.07) |