Table 3.

Effect of different physical activity types in different age periods on overall breast cancer risk: adjusted odds ratios and 95% confidence intervals, MARIE Study, Germany, 2002-2005

1st quintile2nd quintile3rd quintile4th quintile5th quintileTrend*P
Average PA over both periods (since age 30 y)
Total PA1 [Reference]1.01 (0.88, 1.15)1.02 (0.89, 1.17)1.02 (0.89, 1.17)0.97 (0.84, 1.11)0.1801
Leisure-time PA1 [Reference]0.95 (0.83, 1.09)0.88 (0.77, 1.01)0.88 (0.76, 1.00)0.85 (0.74, 0.98)0.1453
Non-recreational PA1 [Reference]0.91 (0.80, 1.04)1.00 (0.87, 1.14)1.00 (0.87, 1.14)0.92 (0.80, 1.06)0.4828
Average PA during age 30 - 49 y
Total PA1 [Reference]0.94 (0.82, 1.07)1.05 (0.92, 1.21)0.94 (0.82, 1.08)0.97 (0.84, 1.11)0.5496
Leisure-time PA1 [Reference]0.97 (0.85, 1.11)0.90 (0.79, 1.03)0.86 (0.75, 0.98)0.91 (0.80, 1.04)0.5199
Non-recreational PA1 [Reference]0.95 (0.83, 1.09)1.08 (0.94, 1.23)0.99 (0.86, 1.14)0.97 (0.84, 1.12)0.7389
Average PA since age 50 y
Total PA1 [Reference]1.01 (0.88, 1.15)1.03 (0.90, 1.17)0.98 (0.86, 1.13)0.90 (0.79, 1.04)0.0273
Leisure-time PA1 [Reference]0.97 (0.85, 1.10)0.90 (0.79, 1.03)0.93 (0.81, 1.07)0.81 (0.70, 0.93)0.0171
Non-recreational PA1 [Reference]0.85 (0.74, 0.97)0.95 (0.83, 1.08)0.97 (0.84, 1.10)0.90 (0.79, 1.04)0.2745
  • NOTE: Separate conditional logistic regression models were performed for each PA variable stratified by region and year of birth, and adjusted for family history of breast cancer, number of pregnancies, breastfeeding, previous benign breast diseases, number of mammograms before diagnosis/reference date, type of menopause, and hormone therapy use.

  • * PA variable entered as continuous linear term into the model.