Table 3:

Post-hoc analysis of patients who did not enter a room disinfected with UV

	All patients categories 1 and 2	Did not enter a seed room (category 1)	Entered a seed room (category 2)
Clostridium difficile
Non-UV disinfection strategy groups	729/779 049; 9.36	695/757 193; 9.18	34/21 856; 15.6
UV disinfection strategy groups	592/739 048; 8.01	583/730 619; 7.98	9/8429; 10.7
Individual disinfection strategy groups
Reference	372/369 737; 10.1	353/358 875; 9.84	19/10 862; 17.5
UV	303/370 199; 8.18	296/365 100;8.11	7/5099; 13.7
Bleach	357/409 312; 8.72	342/398 318; 8.59	15/10 994; 13.6
Bleach and UV	289/368 849; 7.83	287/365 519; 7.85	2/3330; 6.01
Meticillin-resistant Staphylococcus aureus
Non-UV disinfection strategy groups	434/753 385; 5.76	365/690 566; 5.29	69/62 819; 11.0
UV disinfection strategy groups	394/716 204; 5.50	360/687 624; 5.24	34/28 580; 11.9
Individual disinfection strategy groups
Reference	204/357 479; 5.71	171/327 342; 5.22	33/30 137; 11.0
UV	208/358 995; 5.79	191/344 721; 5.54	17/14 274; 11.9
Bleach	230/395 906; 5.81	194/363 224; 5.34	36/32 682; 11.0
Bleach and UV	186/357 209; 5.21	169/342 903; 4.93	17/14 306; 11.9
Vancomycin-resistant enterococci
Non-UV disinfection strategy groups	304/777 649; 3.91	235/750 260; 3.13	69/27 389; 25.2
UV disinfection strategy groups	208/739 366; 2.81	l88/728 6l7; 2.58	20/10 749; 18.6
Individual disinfection strategy groups
Reference	119/370 344; 3.21	96/358 867; 2.68	23/11 477; 20.0
UV	89/371 767; 2.39	79/367 108; 2.15	10/4659; 21.5
Bleach	185/407 305; 4.54	139/391 393; 3.55	46/15 912; 28.9
Bleach and UV	119/367 599; 3.24	109/361 509; 3.02	10/6090; 16.4

Data are number of patients per number of patient days; incidence per 10 000 patient days. UV=ultraviolet light. Bleach=bleach-containing disinfectant (10% hypochlorite).