Table 1. Clostridium difficile infection–related hospitalizations, by year and age group, HCUP and KID, United States*.
| Characteristic | 1997 | 2000 | 2003 | 2006 |
|---|---|---|---|---|
| Age group, y | ||||
| <1 | 1,269 | 1,444 | 1,586 | 2,269 |
| 1–4 | 1,480 | 1,453 | 1,880 | 2,587 |
| 5–9 | 699 | 673 | 934 | 1,255 |
| 10–14 | 602 | 815 | 920 | 1,197 |
| 15–17 | 576 | 574 | 716 | 1,110 |
| All |
4,625 |
4,960 |
6,035 |
8,417 |
| % CDIs as principal diagnosis | 0.31 | 0.29 | 0.27 | 0.29 |
*HCUP, Health Care Utilization Project; KID, Kids’ Inpatient Database; CDIs, C. difficile infections. The sums of individual age groups may not add up to the number of total cases because numbers represent rounded values of weighted estimates.