Using an integrated COC index and multilevel measurements to verify the care outcome of patients with multiple chronic conditions

Table 4 The adjusted association between COC and care outcomes among COC indices – results of the GEE model

	Integrated index (ICOC)		Density (UPC)		Dispersion (COCI)		Sequence (SECOC)
	Exp(β)	Pr > ChiSq	Exp(β)	Pr > ChiSq	Exp(β)	Pr > ChiSq	Exp(β)	Pr > ChiSq
Model of Utilization rate of ED service
Parameter estimate (β)
COC index of medical facility level
All chronic conditions	0.800	0.0002	0.779	0.0002	0.804	0.0001	0.856	0.0041
Major chronic condition	0.681	<.0001	0.642	<.0001	0.724	<.0001	0.696	<.0001
COC index of physician level
All chronic conditions	2.116	<.0001	2.216	<.0001	2.014	<.0001	1.727	<.0001
Major chronic condition	0.591	<.0001	0.544	<.0001	0.636	<.0001	0.646	<.0001
GEE fit criterion
QIC	101,066		101,090		101,086		101,133
QICu	101,063		101,087		101,083		101,130
Model of Hospitalization
Parameter estimate (β)
COC index of medical facility level
All chronic conditions	0.925	0.0212	0.870	0.0003	0.899	0.0008	1.011	0.7063
Major chronic condition	0.630	<.0001	0.601	<.0001	0.683	<.0001	0.641	<.0001
COC index of physician level
All chronic conditions	1.688	<.0001	1.842	<.0001	1.596	<.0001	1.423	<.0001
Major chronic condition	0.634	<.0001	0.577	<.0001	0.686	<.0001	0.679	<.0001
GEE fit criterion
QIC	250,260		250,344		250,334		250,390
QICu	250,257		250,340		250,331		250,387

Note: QIC: quasi-likelihood information criterion for alternating logistic regressions; QICu: QIC for the unstructured working correlation model.

ISSN: 1472-6963