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Table 1 Summary statistics for falls and hospital acquired pressure ulcers data at baseline

From: Nurse staffing and patient outcomes: a longitudinal study on trend and seasonality

  Falls Pressure Ulcers
Hospitala N = 1622 N = 1527
 Teaching 695 (42.9 %) 677 (43.9 %)
 Magnet 119 (7.34 %) 132 (8.64 %)
 Beds ≥300 438 (26.9 %) 431 (28.2 %)
Unitb N = 13,339 N = 12,435
 Critical Care 2837 (21.3 %) 2707 (21.8 %)
 Step-Down 2021 (15.2 %) 1893 (15.2 %)
 Medical 2517 (18.9 %) 2333 (18.8 %)
 Surgical 1853 (13.9 %) 1718 (13.8 %)
 Medical-Surgical 3452 (25.9 %) 3202 (25.8 %)
 Rehab 659 (4.9 %) 582 (4.7 %)
 RN HPPD 7.6 (4.3) 7.6 (4.3)
 Non RN HPPD 2.7 (1.3) 2.6 (1.3)
 Total HPPD 10.3 (4.0) 10.3 (4.0)
 RN skill-mix 0.7 (0.2) 0.8 (0.2)
 Total falls/1000 patient days 3.3 (2.7) NA
 Injurious falls/1000 patient days 0.9 (1.1) NA
 Hospital acquired pressure ulcer rate (%) NA 6.9 (10.2)
 hospital acquired pressure ulcer (Stage III or above) rate NA 1.2 (3.8)
Groupb N = 42 N = 41
 Size (number of units) 182 (111, 1240) 180 (101, 1222)
 Number of quarterly observations/group 12 (4, 36) 12 (4, 36)
  1. a,bAll variables reflect baseline values. Summary statistics are mean (standard deviation) for continuous variable and count (%) for categorical variables
  2. cSummary statistics are median (minimum, maximum)