| 
      MI - myocardial infarction; CI–95% confidence interval
        | First group | Second group | Lower boundary of the CI | Difference between means | Upper boundary of the CI |  
        | Men with MI | Men without MI | -0.0219 | 0.0100 | 0.0418 |  
        | Men with MI | Women with MI | -0.0403 | -0.0073 | 0.0257 |  
        | Men without MI | Women without MI | -0.0092 | 0.0212 | 0.0515 |  
        | Women with MI | Women without MI | 0.0069 | 0.0384 | 0.0700 |  |