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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Cancer Epidemiol Biomarkers Prev. 2011 Jan 25;20(3):464–472. doi: 10.1158/1055-9965.EPI-10-1220

Figure 3. Multivariable-adjusted HRsa and 95% CIs for BMI (per 5 kg/m2) and thyroid cancer risk, stratified by selected risk factors: aggregate analysis.

Figure 3

Abbreviations: BMI=body mass index, CI= confidence interval, HR= hazards ratio

*Test for interaction calculated using the likelihood ratio test comparing a model with a cross-product term to a model without

**Test for interaction calculated using the Mantel-Haenszel test for heterogeneity

aAdjusted for sex, education, race, marital status, cigarette smoking, alcohol intake, and cohort

bCalculated using a random effects model