The Korean Journal of Healthcare-Associated Infection Control and Prevention

Table 6

Pooled means and percentiles of the distribution of device- utilization ratios, by type of ICU, from July 2019 through June 2020

Urinary catheter utilization ratio*
Type of ICU	No. of units	Urinary catheter-days	Patient-days	Pooled mean	95% CI	10%	25%	50%	75%	90%
MICU	95	374,579	488,562	0.77	0.769-0.771	0.67	0.78	0.86	0.92	0.96
MCICU	150	527,632	651,537	0.81	0.809-0.811	0.66	0.77	0.87	0.94	0.97
SCICU	45	169,235	220,410	0.77	0.768-0.772	0.70	0.85	0.93	0.97	0.98
SICU	24	97,151	113,162	0.86	0.858-0.862	0.75	0.83	0.89	0.93	0.97
NSICU	26	102,899	114,138	0.90	0.898-0.902	0.79	0.87	0.95	0.97	0.99
Central line utilization ratio†
Type of ICU	No. of units	Central line-days	Patient-days	Pooled mean	95% CI	10%	25%	50%	75%	90%
MICU	95	264,471	488,562	0.54	0.539-0.541	0.14	0.41	0.58	0.72	0.86
MCICU	150	284,841	651,537	0.44	0.439-0.441	0.12	0.28	0.44	0.57	0.68
SCICU	45	108,603	220,410	0.49	0.488-0.492	0.36	0.45	0.58	0.70	0.76
SICU	24	69,961	113,162	0.62	0.617-0.623	0.37	0.50	0.63	0.79	0.91
NSICU	26	58,472	114,138	0.51	0.507-0.513	0.26	0.39	0.52	0.64	0.73
Ventilator utilization ratio‡
Type of ICU	No. of units	Ventilator-days	Patient-days	Pooled mean	95% CI	10%	25%	50%	75%	90%
MICU	95	193,172	488,562	0.40	0.399-0.401	0.05	0.21	0.41	0.56	0.67
MCICU	150	161,970	651,537	0.25	0.249-0.251	0.03	0.11	0.19	0.33	0.48
SCICU	45	69,849	220,410	0.32	0.318-0.322	0.16	0.26	0.34	0.44	0.55
SICU	24	43,847	113,162	0.39	0.387-0.393	0.15	0.23	0.36	0.47	0.58
NSICU	26	36,295	114,138	0.32	0.317-0.323	0.13	0.20	0.31	0.41	0.48

*Pooled mean=(No. of urinary catheter-days/No. of patient-days); †Pooled mean=(No. of central line-days/No. of patient-days); ‡Pooled mean=(No. of ventilator-days/No. of patient-days).

Abbreviations: ICU, intensive care unit; MICU, medical ICU; MCICU, medical combined ICU; SCICU, surgical combined ICU; SICU, surgical ICU; NSICU, neurosurgical ICU; UTI, urinary tract infection; BSI, bloodstream infection; PNEU, pneumonia; CI, confidence interval.

Korean J healthc assoc Infect Control Prev 2021;26:115~128 https://doi.org/10.14192/kjicp.2021.26.2.115