Table 1

 Number of intensive care units (ICUs) and catheter days by hospital type and size for each study period

Hospital type/sizeBaseline period before implementation of interventionDuring implementation of intervention (3 months)Initial evaluation period (18 months)Sustainability period (18 months)
No of ICUs*Catheter days (%)No of ICUsCatheter days (%)No of ICUsCatheter days (%)No of ICUsCatheter days (%)
All hospitals5541 506 (100)9657 033 (100)103300 175 (100)90300 310 (100)
Teaching status:
 Teaching3329 407 (71)6644 752 (78)71231 595 (77)60230 836 (77)
 Non-teaching2212 099 (29)3012 281 (22)3268 580 (23)3069 474 (23)
No of beds:
 <200133 266 (8)173 066 (5)1916 349 (5)1716 398 (5)
 200-2991213 321 (32)1910 792 (19)2367 970 (23)2259 122 (20)
 300-3991210 531 (25)2012 314 (22)2066 765 (22)1763 650 (21)
 ≥4001814 388 (35)4030 861 (54)41149 091 (50)34161 140 (54)

*Of 103 ICUs participating in initial evaluation, 48 did not contribute baseline data—40 implemented intervention during baseline period of study; 8 did not report baseline data.