Baseline characteristics were balanced between the apixaban and warfarin cohorts. The mean age was 64 years with a mean CCI score of 2.7
  Warfarin cohort Apixaban cohort  
n (%) n (%) STD*
Sample size 25,602 17,493  
Age, mean (SD) 64.3 (14.3) 64.5 (14.2) 1.41
Gender      
Male 10,504 (41.0) 7,167 (41.0) 0.12
Female 15,098 (59.0) 10,326 (59.0) 0.12
Index VTE setting      
Inpatient 16,530 (64.6) 11,321 (64.7) 0.32
Outpatient 9,072 (35.4) 6,172 (35.3) 0.32
Index VTE event type      
DVT only 12,214 (47.7) 8,359 (47.8) 0.16
PE with or without DVT 13,388 (52.3) 9,134 (52.2) 0.16
Deyo-Charlson Comorbidity Index, Mean (SD) 2.7 (2.6) 2.7 (2.6) 0.53
1|2|3