영어 논문 통계방법에 대한 설명인데 해석부탁드립니다!!

-Relative risk (RR) acted as an effect size for binary variables.

-And when it come to the ordered classification data, the odds ratio (OR) (the ratio of exposure group to control group) should be used as the effect quantity.

-Then when the analysis index was a continuous variable, if the measurement method or unit was exactly the same, weighted mean difference (WMD) should be the effect size, otherwise the standardized mean difference (SMD) should be used.

- Interval estimates used 95% confidence intervals (CI). Q test, I 2 test have been used to assess the heterogeneity of pooled results. If there was no severe statistical heterogeneity among the studies