Table 2. CFA result.

Category		Mean	Standard deviation	Non-SC	Standard error	Critical ratio	SC	AVE	CR
Importance of reliability	Provide good service	3.11	0.54	1.000	-	-	0.773	0.726	0.929
	Privacy protect	2.80	0.74	1.025	0.08	12.717	0.575
	Reliable	3.10	0.59	1.047	0.06	17.042	0.747
	Consumer care	3.02	0.59	1.043	0.06	16.928	0.743
	Honesty	2.94	0.64	1.120	0.07	16.764	0.737
Barriers	Limited information	2.87	0.58	1.000	-	-	0.636	0.625	0.832
	Bad information	3.02	0.55	0.917	0.12	7.636	0.619
	Inconvenient	2.74	0.59	0.826	0.11	7.395	0.523
Health consciousness	Health maintenance efforts	2.68	0.72	1.000	-	-	0.646	0.658	0.905
	Disease prevention	2.97	0.71	1.095	0.09	12.473	0.716
	Self care	3.35	0.58	0.860	0.07	12.175	0.691
	Healthy diet	3.30	0.59	0.879	0.07	12.176	0.691
	Healthy life	3.57	0.55	0.610	0.06	9.626	0.514
Social norm	My physician	3.04	0.60	1.000	-	-	0.778	0.82	0.932
	My family	3.04	0.58	0.981	0.06	17.765	0.795
	Important others	2.92	0.58	0.959	0.06	17.106	0.767
Expectation for the quality of accreditation system	Certainty/ uncertainty	3.37	0.61	1.000	-	-	0.739	0.735	0.951
	Unbiased information	3.45	0.59	0.899	0.06	14.572	0.683
	Health information updated date	3.37	0.57	0.895	0.06	14.975	0.701
	Clear source	3.51	0.57	0.900	0.06	15.066	0.705
	Easy to understand	3.46	0.57	0.799	0.06	13.289	0.624
	Accurate contents	3.45	0.55	0.811	0.06	14.133	0.663
	Clear goals	3.29	0.54	0.843	0.06	14.943	0.700
Perceived ease of use	Easy to differentiate	3.26	0.56	1.000	-	-	0.693	0.812	0.928
	Easy to learn	3.16	0.55	1.139	0.07	15.751	0.798
	Easy to find	3.10	0.55	1.082	0.07	15.229	0.766
Perceived usefulness	Good to decision making	3.25	0.56	1.000	-	-	0.750	0.763	0.928
	Save cost	3.17	0.63	1.018	0.07	14.985	0.676
	Save time	3.18	0.61	1.048	0.07	16.168	0.725
	Good to health	3.21	0.48	0.817	0.05	15.887	0.713
Intention of use	Recommend to others	3.16	0.59	1.000	-	-	0.751	0.791	0.919
	Revisit to site	3.23	0.54	0.903	0.06	16.353	0.748
	Use if necessary	3.07	0.59	0.983	0.06	16.076	0.736

CFA = confirmatory factor analysis, SC = standardized coefficient, AVE = average variance extracted, CR = construct reliability.