Stata version 12.0 software was used to calculate pooled odds ratios or weighted mean differences and corresponding 95% confidence intervals to determine the relationship between anti-MDA5 antibody and patient characteristics. 
Stata
Stata version 12.0 software was used to calculate pooled odds ratios or weighted mean differences and corresponding 95% confidence intervals to determine the relationship between anti-MDA5 antibody and patient characteristics. 
Stata version 12.0 software