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Figure 2 | BMC Medical Research Methodology

Figure 2

From: Investigation of relative risk estimates from studies of the same population with contrasting response rates and designs

Figure 2

Odds Ratios a by study where either the exposure or outcome or both variables were only moderately comparable across the 45 and Up Study and the NSW PHS b. ARIA+, Accessibility Remoteness Index of Australia; CI, Confidence Interval; NSW, New South Wales; p.a, per annum; PHS, Population Health Survey. a Adjusting for age, sex and remoteness. b Black squares represent ORs with area inversely proportional to the sample size contributing to the OR and the corresponding line represents the 95% confidence interval. c P-value from Wald chi-square test: testing for a difference between the two studies for the specific exposure-outcome pair

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