Weight History, Smoking, Physical Activity and Breast Cancer Risk among French-Canadian Women Non-Carriers of More Frequent BRCA1/2 Mutations
Table 3
Odd ratios and 95% confidence intervals for
breast cancer risk associated with lifestyle factors, including smoking and
physical activity.
Variables
Q1
Q2
Q3
for trend
Smoking
Range (pack-years)
≤0
>0 and ≤9.0
>9.0
Cases/Controls
106/134
67/66
107/80
Univariate OR (95% CI)
1.00
1.28
()
1.69 ()
.03
Multivariate (95% CI)
1.35
()
1.59 ()
.05
Moderate physical activity
Range (MET-hours/week)
≤10.7
>10.7 and ≤24.8
>24.8
Cases/Controls
80/108
91/95
109/77
Univariate OR (95% CI)
1.00
0.68
()
0.52 ()
.01
Multivariate (95% CI)
0.67
()
0.48 ()
.01
Vigorous
physical activity
Range (MET-hours/week)
≤0.11
>0.11 and ≤7.2
>7.2
Cases/Controls
91/94
91/92
98/94
Univariate OR (95% CI)
1.00
1.02
()
1.08 ()
.93
Multivariate (95% CI)
1.01
()
1.05 ()
.94
Total physical activity
Range (MET-hours/week)
≤16.2
> 6.2 and ≤33.2
>33.2
Cases/Controls
87/100
89/98
104/82
Univariate OR (95% CI)
1.00
0.69
()
0.72 ()
.14
Multivariate (95% CI)
0.57 ()
0.66 ()
.05
for age,
education, physical activity, alcohol consumption, and total energy intake. for age,
education, alcohol consumption, smoking, and total energy intake.
