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A large cross sectional study reports mutually adjusted odds ratios for associations between waist size, age and sex and the presence of diabetes, as shown in the table below. The study also reports that there was no evidence that the effect of waist circumference on diabetes varied with age or sex, i.e. there was no evidence of statistical interaction or effect modification. What is the odds ratio for diabetes in a man aged 65 compared with a woman aged 60 (both have the same waist circumference)?
Explanatory Variable - Adjusted Odds Ratio (95% Confidence Interval)Waist (per cm) 1.05 (1.02,1.07) p0.006Male Sex 0.75 (0.65, 0.99) p0.001Age (per year) 1.10 (1.07, 1.12) p<0.001
Describe the difference in the fit provided by the two estimated regression equations.
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