Table 1

Characteristics of participating intensive care units (ICUs) in the AHRQ ICU Safety Programme (final cohort)

Total no of units49
No of beds per unit
 Mean (SD)18.8 (8.2) 
 Median (range)16.0 (8–40) 
Unit sizeN (per cent of total)
 Small (1–5 beds)0 (0.0) 
 Medium (6–15 beds)20 (40.8) 
 Large (16–30 beds)23 46.9) 
 Very large (>30 beds) 6 (12.2) 
National Healthcare Safety Network unit type*N (per cent of Total)
 Medical/surgical  25 (51.0)
 Medical  8 (16.3) 
 Surgical  2 (4.1) 
 Surgical cardiothoracic  4 (8.2)
 Medical cardiac  3 (6.1)
 Neurosurgical  5 (10.2) 
 Neurologic  2 (4.1)