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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Int J Cancer. 2011 Mar 4;129(7):1708–1717. doi: 10.1002/ijc.25794

Table 5.

Pooled Multivariate Relative Risks1 and 95% Confidence Intervals for Body Mass Index by Levels of Other Pancreatic Cancer Risk Factors

Factor BMI at Baseline
(5kg/m2)		 P-value,heterogeneity2 P-value,interaction3 BMI in Early Adulthood
(5kg/m2)		 P-value,heterogeneity2 P-value,interaction3
Cases Continuous
RR(95% CI)		 Cases Continuous
RR (95% CI)
Overall 2135 1.14(1.07–1.21) 0.24 1598 1.20(1.10–1.30) 0.62
Sex
    Females 1116 1.13(1.06–1.21) 0.39 0.90 918 1.14(1.02–1.28) 0.37 0.23
    Males 1019 1.14(1.01–1.29) 0.13 680 1.27(1.12–1.44) 0.88
Smoking Status
    Never4–5 748 1.19(1.08–1.31) 0.20 0.12 628 1.28(1.12–1.46) 0.52 0.11
    Past4,6 642 1.22(1.10–1.34) 0.73 548 1.30(1.13–1.50) 0.58
    Current7 628 1.07(0.95–1.21) 0.25 338 1.02(0.84–1.23) 0.50
Physical Activity8–9
    Low 825 1.13(1.00–1.28) 0.002 0.02 652 1.14(1.00–1.30) 0.75 0.31
    Medium 587 1.15(1.04–1.28) 0.57 458 1.16(0.99–1.36) 0.78
    High 473 1.29(1.15–1.45) 0.80 397 1.31(1.11–1.55) 0.60
Median Age at Diagnosis (years)
    <69 1042 1.15(1.07–1.25) 0.35 0.82 749 1.19(1.05–1.33) 0.58 0.91
    ≥69 1093 1.14(1.05–1.22) 0.78 849 1.20(1.07–1.35) 0.57
Follow-up Time (years)
    < 5 10–11 726 1.20(1.10–1.31) 0.50 0.24 511 1.12(0.96–1.31) 0.38 0.26
    ≥5 1394 1.12(1.05–1.20) 0.47 992 1.23(1.12–1.36) 0.95
1

See Table 2 for adjustment factors. The stratification variable was excluded from the model.

2

P-value, test for between-studies heterogeneity

3

P-value, test for interaction

4

ATBC was excluded from the never and past smoking analyses because this study only included current smokers.

5

NLCS(Males) was excluded from this strata due to small case numbers (n<10)

6

MCCS(Females) was excluded from this strata due to small case numbers (n<10)

7

MCCS(Males and Females) were excluded from this strata due to small case numbers (n<10)

8

NYSC(Female and Males) was excluded from the physical activity analysis since they did not measure physical activity.

9

CNBSS was excluded from the physical activity analysis for BMI in early adulthood due to small case numbers (n<10).

10

MCCS(Females) were excluded from this strata due to small case numbers (n<10)

11

MCCS(Males) were excluded from this strata due to small case numbers(n<10)