From: Active smoking and risk of breast cancer in a Danish nurse cohort study
Never | Former | Current | Ever | |||
---|---|---|---|---|---|---|
N | No. of cases | HR (95% CI) | HR (95% CI) | HR (95% CI) | HR (95% CI) | |
Menopausal status | ||||||
Premenopausal | 9455 | 466 | 1.00 | 1.03 (0.82–1.29) | 1.30 (1.04–1.61) | 1.16 (0.95–1.40) |
Postmenopausal | 12,376 | 696 | 1.00 | 1.12 (1.92–1.37) | 1.27 (1.05–1.52) | 1.20 (1.02–1.42) |
p-value | 0.77 | 0.80 | ||||
BMI | ||||||
Not obese (< 30 kg/m2) | 20,578 | 1086 | 1.00 | 1.07 (0.92–1.25) | 1.25 (1.08–1.45) | 1.11 (1.03–1.33) |
Obese (≥ 30 kg/m2) | 1253 | 76 | 1.00 | 1.23 (0.72–2.09) | 1.47 (0.81–2.66) | 1.32 (0.82–2.12) |
p-value | 0.84 | 0.63 | ||||
Alcohol Consumption | ||||||
None | 3320 | 183 | 1.00 | 1.11 (0.77–1.61) | 1.17 (0.83–1.66) | 1.14 (0.85–1.54) |
Moderate (1–14 drinks/week) | 13,533 | 670 | 1.00 | 1.13 (0.94–1.37) | 1.26 (1.05–1.52) | 1.19 (1.02–1.40) |
Heavy (>14 drinks/week) | 4978 | 309 | 1.00 | 0.96 (0.70–1.31) | 1.34 (1.01–1.77) | 1.17 (0.90–1.52) |
p-value | 0.66 | 0.99 | ||||
Hormone therapy use | ||||||
Never | 15,880 | 755 | 1.00 | 1.05 (0.88–1.26) | 1.21 (1.02–1.44) | 1.13 (0.97–1.32) |
Ever | 5951 | 407 | 1.00 | 1.15 (0.88–1.49) | 1.36 (1.06–1.73) | 1 26 (1.01–1.58) |
p-value | 0.63 | 0 33 |