From: The burden of clostridium difficile infection: estimates of the incidence of CDI from U.S. Administrative databases
Medicare
LabRx
SID
Size of the cohort
1,465,927
7,255,708
5,575,935
No CDI
1,456,526
7,251,046
5,508,903
Only one CDI
9,155 (97.4)a
4,429 (95.0)
65,549 (97.9)
2 CDI
241 (2.6)
215 (4.6)
1,403 (2.1)
> 2 CDI
5 (0.05)
18 (0.4)
28 (0.04)