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. Author manuscript; available in PMC: 2010 Apr 24.
Published in final edited form as: Obesity (Silver Spring). 2009 Jan 15;17(4):796–802. doi: 10.1038/oby.2008.610

Table 5.

Hazard ratios for mortality according to cancer groups

Deaths
Hazard ratios for cancer deathsa
Surgery group N = 6,596
Control group N = 9,442
Surgery vs. control groups
Cancer site N (rates/1,000 person years) N (rates/1,000 person years) Hazard ratio (95% CI) P value*
All cancers: males and females combined 41 (0.50) 107 (0.94) 0.54 (0.37–0.78) 0.001
All cancers: males only 10 (0.12) 24 (0.21) 0.70 (0.34–1.48) 0.35
All cancers: females only 31 (0.38) 83 (0.73) 0.38 (0.23–0.64) 0.0003
Obesity-related cancersb 20 (0.24) 55 (0.48) 0.54 (0.32–0.90) 0.02
Nonobesity-related cancersc 21 (0.25) 52 (0.46) 0.53 (0.31–0.91) 0.02

CI, 95% confidence interval.

a

Hazard ratios adjusted for age, sex and BMI. Prevalent cancers at baseline were excluded.

b

Obesity-related cancers included esophageal adenocarcinomas, colorectal, pancreas, postmenopausal breast, corpus and uterus, kidney, non-Hodgkin lymphoma, leukemia, multiple myeloma, liver, and gallbaldder.

c

All cancers that are not included as obesity-related cancers.

*

P values are unadjusted for multiple comparisons.

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