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. Author manuscript; available in PMC: 2013 Oct 1.
Published in final edited form as: Ann Epidemiol. 2012 Aug 14;22(10):691–697. doi: 10.1016/j.annepidem.2012.07.008

Table 4.

Estimated Disparities in Primary Care Using Logistic Regression Incorporating Effect Modification

Hispanics as reference sample
Hispanics proportion 0.180
Counterfactual whites proportion 0.305
Difference in proportion (whites vs Hispanics) 0.126
Marginal OR (whites vs Hispanics) 2.01 (1.54, 2.61) 1
Whites as reference sample
Counterfactual Hispanics proportion 0.268
Whites proportion 0.351
Difference in proportion (whites vs Hispanics) 0.083
Marginal OR (whites vs Hispanics) 1.48 (1.18, 1.86) 1
Combined whites/Hispanics as reference sample
Counterfactual Hispanics proportion 0.251
Counterfactual whites proportion 0.342
Difference in proportion (whites vs Hispanics) 0.092
Marginal OR (whites vs Hispanics) 1.56 (1.25, 1.93) 1
1

95% CIs were generated using bootstrap method