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. Author manuscript; available in PMC: 2011 Jul 26.
Published in final edited form as: Am J Gastroenterol. 2009 Apr 14;104(5):1221–1230. doi: 10.1038/ajg.2009.121

Table 3.

Physical activity and sedentary behavior and the risk of diverticular bleeding

Total Physical Activity, MET-h/wk (quintiles)a
1 2 3 4 5 P value for Trend
Casesb 91 93 75 69 55
Person years 129,642 143,765 149,069 151,888 153,792
Age-adjusted RRc 1.00 0.92 0.72 0.66 0.52 <0.001
95% CI - 0.69–1.23 0.53–0.98 0.48–0.90 0.37–0.73
Multivariable RRd 1.00 0.91 0.71 0.66 0.54 <0.001
95% CI - 0.68–1.22 0.52–0.98 0.48–0.92 0.38–0.77
Vigorous Physical Activity, MET-h/wk (quintiles)e
01 2 3 4 5 P value for Trend
Casesa 110 98 63 75 37
Person years 174,557 141,175 138,942 158,234 115,901
Age-adjusted RRb 1.00 1.08 0.72 0.80 0.57 0.001
95% CI - 0.81–1.42 0.52–0.98 0.59–1.08 0.39–0.84
Multivariable RRf 1.00 1.04 0.70 0.81 0.61 0.008
95% CI - 0.79–1.37 0.51–0.97 0.59–1.10 0.41–0.90
Non-Vigorous Physical Activity, MET-h/wk (quintiles)g
1 2 3 4 5 P value for Trend
Casesa 75 74 77 86 71
Person years 132,094 146,870 150,737 150,163 148,943
Age-adjusted RRb 1.00 0.93 0.92 0.99 0.78 0.14
95% CI - 0.68–1.29 0.67–1.26 0.72–1.36 0.56–1.08
Multivariable RRf 1.00 0.90 0.89 0.96 0.77 0.17
95% CI - 0.65–1.25 0.64–1.23 0.70–1.33 0.55–1.07
Sedentary Behavior, h/wk (quintiles)h
1 2 3 4 5 P value for Trend
Casesa 83 69 70 73 63
Person years 136,483 99,647 146,156 147,544 120,844
Age-adjusted RRb 1.00 1.01 0.81 0.86 0.88 0.24
95% CI - 0.73–1.40 0.59–1.12 0.63–1.18 0.63–1.22
Multivariable RRi 1.00 1.01 0.82 0.85 0.83 0.14
95% CI - 0.73–1.4 0.59–1.13 0.62–1.17 0.60–1.17

MET, Metabolic Equivalent; RR, Relative Risk; CI, Confidence Interval.

a

Quintiles of Total Physical Activity: ≤8.2, 8.3–19.0, 19.1–33.5, 33.6–57.3, ≥57.4

b

Cases numbers may vary because of missing values.

c

Age-adjusted models include age in 1-year intervals and study period in 2-year intervals

d

Multivariable models include age, study period, sedentary behavior, BMI, use of NSAIDs, use of acetaminophen, dietary fat, fiber, red meat, combined nut, corn and popcorn consumption, and total calories.

e

Quintiles of Vigorous Physical Activity: 0, 0.1–4, 4.1–10, 10.1–28, ≥28.1

f

Models of vigorous activity adjust for non-vigorous activity and vice versa in addition to other covariates.

g

Quintiles of Non-vigorous Activity: 0–2.9, 3–7.9, 8–15.9, 16–29.9, ≥30

h

Quintiles of Sedentary Behavior: 0–15.9, 16–26.9, 27–38, 38.1–51.7, ≥51.8

i

Models of sedentary behavior are adjusted for total physical activity in addition to other covariates.