Disease data for two independent groups are summarized into

Disease data for two independent groups are summarized into 2 by 2 tables stratified by gender. The Chi-Square test for interaction between group variable and gender variable shows that a statistical significant interaction does NOT exist. Which following statistic should be reported?

1)The strata-specific odds ratio

2)The crude odds ratio from combined data

3)The Mantel-Haenszel summary odds ratio

4$Can not be determined

Solution

2)The crude odds ratio from combined data