Table 3 Agreement between KPCS-1, KPCS-GW and APCS (N = 50,314)

From: Measuring patient acuity and nursing care needs in South Korea: application of a new patient classification system

							APCS quartile
		25%			50%		75%		100%		Total
		N	%		N	%	N	%	N	%	N	%
KPCS-1 quartile	25%	12,574	25.0		413	0.8	91	0.2	2	0.0	13,080	26.0
	50%	1,023	2.0		10,683	21.2	1,211	2.4	105	0.2	13,022	25.9
	75%	0	0.0		816	1.6	10,502	20.9	1,273	2.5	12,591	25.0
	100%	0	0.0		0	0.0	571	1.1	11,050	22.0	11,621	23.1
	Total	13,597	27.0		11,912	23.7	12,375	24.6	12,430	24.7	50,314	100
KPCS-GW quartile	25%	12,659	25.2		1,046	2.1	161	0.3	4	0.0	13,870	27.6
	50%	938	1.9		9,546	19.0	1,403	2.8	119	0.2	12,006	23.9
	75%	0	0.0		1,320	2.6	9,689	19.3	1,343	2.7	12,352	24.6
	100%	0	0.0		0	0.0	1,122	2.2	10,964	21.8	12,086	24.0
	Total	13,597	27.0		11,912	23.7	12,375	24.6	12,430	24.7	50,314	100

¹⁾ APCS and KPCS-1 Weighted Kappa: 0.91 (95% CI: 0.907, 0.912)
²⁾ APCS and KPCS-GW Weighted Kappa: 0.88 (95% CI: 0.876, 0.881)

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