Table 4 Burden of CDI in the elderly in 2009 in the different databases, including all episodes of CDI

Adults < 65 Years

Lab/Rx

SID

Premier

NIS

 Rate of CDI/100,000 person-years

66.0

37.5^a

N/A

N/A

 Rate of hospital onset CDI/10,000 pt. days

1.1

5.7

5.4

6.9

 Prevalence of CDI at admission/1,000 hospitalizations

N/A

1.5

1.9

2.0

 Rate of healthcare facility-associated CDI/10,000 pt. days

2.1

N/A

N/A

N/A

Elderly

Medicare

SID

Premier

NIS

 Rate of CDI/100,000 person-years

677

383^b

N/A

N/A

 Rate of hospital onset CDI/10,000 pt. days

9.8

15.9

11.6

15.5

 Prevalence of CDI at admission/1,000 hospitalizations

5.4

4.7

6.3

6.2

 Rate of healthcare facility-associated CDI/10,000 pt. days

12.5

N/A

N/A

N/A