Table 1. Hospital characteristics and aggregated experiences in 34 PHIS hospitals, United States, all of 2008, 2008–09 seasonal influenza period, and fall 2009 pandemic (H1N1) 2009 period*.
| Hospital characteristics | Calendar year 2008, 52 wk, median (IQR) | 2008–09 seasonal influenza, 8 wk, median (IQR)† | Fall 2009 pandemic influenza, 11 wk, median (IQR)‡ |
|---|---|---|---|
| Overall§ | |||
| Beds, no. | 255 (221–316) | 265 (219–319) | 265 (219–319) |
| Admissions, no. | 12,105 (9,913–14,247) | 1,871 (1,489–2,197) | 2,774 (2,219–3,319) |
| Bed-days, no. | 89,117 (70,691–96,346) | 15,299 (13,087–17,312) | 19,283 (15,842–21,315) |
| Occupancy, % |
91 (87–95) |
101 (96–110) |
95 (85–99) |
| Non-ICU | |||
| Beds, no. | 129 (91–179) | 132 (90–181) | 132 (90–181) |
| Admissions, no. | 10,575 (8,415–13,022) | 1,595 (1,346–2,030) | 2,419 (1,838–2,907) |
| Bed-days, no. | 81,735 (65,703–87,171) | 13,933 (11,946–15,902) | 16,703 (1,2051–18,843) |
| Occupancy, % |
94 (91–103) |
108 (100–117) |
98 (92–105) |
| ICU¶ | |||
| Beds, no. | 33 (25–48) | 37 (27–51) | 37 (27–51) |
| Admissions, no. | 1,654 (1,167–22,80) | 245 (189–316) | 401 (296–516) |
| Bed-days, no. | 8,299 (5,502–11,083) | 1,576 (1,155–1,889) | 1,873 (1,094–2,638) |
| Occupancy, % | 72 (44–87) | 80 (51–97) | 65 (47–88) |
*PHIS, Pediatric Health Information System; IQR, interquartile range; ICU, intensive care unit; MMWR, Morbidity and Mortality Weekly Report (Centers for Disease Control and Prevention, Atlanta, GA, USA). †MMWR reporting weeks 4–11 (January 31–March 20, 2009). ‡MMWR reporting weeks 35–45 (September 5–November 20, 2009). §Excluding neonatal and behavioral health patients and designated beds. ¶Excluding neonatal intensive care units.