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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 2.

Physical activity and sedentary behavior and the risk of diverticulitis

Total Physical Activity, MET-h/wk (quintiles) a
1 2 3 4 5 P value for Trend
Casesb 152 185 169 170 124
Person years 129,642 143,765 149,069 151,888 153,792
Age-adjusted RRc 1.00 1.08 0.95 0.94 0.68 <0.001
95% CI - 0.87–1.34 0.77–1.18 0.75–1.17 0.54–0.86
Multivariable RRd 1.00 1.08 0.97 0.98 0.75 0.005
95% CI - 0.87–1.34 0.77–1.21 0.78–1.23 0.58–0.95
Vigorous Physical Activity, MET-h/wk (quintiles)e
1 2 3 4 5 P value for Trend
Casesb 207 169 176 167 82
Person years 174,557 141,175 138,942 158,234 115,901
Age-adjusted RRc 1.00 0.93 0.98 0.83 0.57 <0.001
95% CI - 0.75–1.14 0.80–1.20 0.68–1.03 0.44–0.74
Multivariable RRf 1.00 0.91 0.99 0.89 0.66 0.002
95% CI - 0.74–1.12 0.81–1.22 0.72–1.10 0.51–0.86
Non-Vigorous Physical Activity, MET-h/wk (quintiles)g
1 2 3 4 5 P value for Trend
Casesb 149 158 163 160 171
Person years 132,094 146,870 150,737 150,163 148,943
Age-adjusted RRc 1.00 1.00 0.97 0.95 1.0 0.91
95% CI - 0.80–1.25 0.77–1.21 0.76–1.19 0.81–1.26
Multivariable RRf 1.00 0.94 0.91 0.90 0.96 0.95
95% CI - 0.75–1.18 0.73–1.15 0.71–1.13 0.76–1.21
Sedentary Behavior, h/wk (quintiles)h
1 2 3 4 5 P value for Trend
Casesa 141 142 162 166 138
Person years 136,483 99,647 146,156 147,544 120,844
Age-adjusted RRb 1.00 1.19 1.04 1.07 1.02 0.83
95% CI - 0.94–1.5 0.83–1.31 0.85–1.34 0.80–1.29
Multivariable RRi 1.00 1.14 1.02 1.03 0.97 0.56
95% CI - 0.90–1.45 0.81–1.28 0.82–1.29 0.76–1.23

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.