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. Author manuscript; available in PMC: 2008 Apr 9.
Published in final edited form as: Int J Cancer. 2007 Dec 15;121(12):2776–2781. doi: 10.1002/ijc.23009

TABLE IV.

RELATIVE RISKS OF COLON CANCER, 1996–2002, BY LONG TERM PHYSICAL ACTIVITY FROM 1986–1996, NURSES’ HEALTH STUDY

Long term physical activity1
Low Moderate High
Number of cases 89 32 38
Age adjusted RR 1.00 (ref) 1.29 0.89
95% CI 0.85–1.95 0.59–1.33
Multivariate RR2 1.00 (ref) 1.39 0.95
95% CI 0.91–2.11
1

Low, lowest quintile of activity at each time point from 1986–1996, Moderate, second or third quintile at each time point from 1986–1996, High, highest two quintiles at each time point from 1986–1996.

2

Adjusted for age, body mass index, smoking, multivitamin, aspirin, alcohol intake, red meat intake, vitamin D, calcium, history of endoscopy, family history of colon cancer and history of polyps.