TABLE 2

Traditional Versus Alternative Measurements of Occupancy During the H1N1 Surge of Fall 2009*

MeasurementAll Days October–November 2009 (n = 61)Weekdays Only October–November 2009 (n = 43)All Days Surge Period (n = 34)Weekdays Only Surge Period (n = 24)
Mean hospital midnight occupancy versus     daily peak occupancy, %86 vs 8989 vs 9089 vs 9292 vs 93
Hospital days >90% occupancy at midnight     versus peak, %34 vs 4347 vs 5353 vs 6871 vs 83
Hospital days >95% occupancy at midnight     versus peak, %7 vs 139 vs 1913 vs 2417 vs 33
Mean PICU midnight occupancy versus daily     peak occupancy, %90 vs 9491 vs 9594 vs 9795 vs 96
PICU days >90% occupancy at midnight     versus peak, %62 vs 7472 vs 8476 vs 9488 vs 96
PICU days >95% occupancy at midnight     versus peak, %30 vs 5448 vs 7544 vs 6857 vs 74
PICU days >100% occupancy at midnight     versus peak, %2 vs 87 vs 73 vs 158 vs 12
  • Differences of 10% points or greater are in bold.

  • * Surge dates were October 16, 2009–November 18, 2009.