Table 2 Crude incidence rates of pneumonia and influenza-related hospitalizations among short- and long-stay residents in U.S. long-term care facilities, 2013–2015
Days since index date | Short-stay residents (N = 1,118,054) | Long-stay residents (N = 593,443) | ||||
|---|---|---|---|---|---|---|
30 | 90 | 30 | 90 | 180 | 365 | |
Total person-days observed | 24,395,364 | 32,290,058 | 15,668,663 | 41,150,984 | 70,681,373 | 111,720,666 |
Primary diagnosis position on the hospital claim | ||||||
 Number of hospitalizations | 6345 | 8412 | 5410 | 11,777 | 18,202 | 26,891 |
 Crude IR per 100,000 (95% CI) | 26.0 (25.4–26.6) | 26.1 (25.5–26.6) | 34.5 (33.6–35.4) | 28.6 (28.1–29.1) | 25.8 (29.4–30.2) | 24.1 (23.8–24.4) |
Any diagnosis position on the hospital claim | ||||||
 Number of hospitalizations | 21,942 | 28,943 | 12,819 | 28,046 | 43,220 | 63,560 |
 Crude IR per 100,000 (95% CI) | 89.9 (88.8–91.1) | 89.6 (88.6–90.7) | 81.8 (80.4–83.2) | 68.2 (67.3–69.0) | 61.1 (60.6–61.7) | 56.9 (56.4–57.3) |