Table 1.

Descriptive statistics (N = 5,199).

Variable	Mean	Std. Dev.	Min	Max
PCC1	4.796	0.478	1	5
PCC2	4.824	0.451	1	5
PCC3	3.627	1.686	1	5
PCC4	4.741	0.572	1	5
PCC5	4.766	0.524	1	5
PCC6	4.822	0.45	1	5
Mean of PCC (5 items)	4.79	0.411	1	5
Mean of PCC (6 items)	4.596	0.458	1.667	5
Age	48.762	14.808	18	97
	Percentage (%)	Std. Dev.	Min	Max
Physical health status (PHS)	76.3%	0.425	0	1
Mental health status (MHS)	90.0%	0.3	0	1
Patients' subjective necessity of hospitalization (PSN)	99.7%	0.052	0	1
Advising to buy medicines outside (ABM)	5.80%	0.233	0	1
Paying at the outpatient clinic (PO)	6.10%	0.239	0	1
Issuing unnecessary or repeated prescriptions and medical tests (IU)	2.00%	0.14	0	1
Requiring discharge and readmitting (RDR)	1.6%	0.126	0	1
Household registration (0 = Agricultural)	76.1%	0.426	0	1
Income (Yuan)	.	.	.	.
< 2,800	14.9%	0.356	0	1
2,801 ~ 10,000	29.1%	0.454	0	1
10,001 ~ 30,000	22.2%	0.416	0	1
30,001 ~ 100,000	28.4%	0.451	0	1
100,001 ~ 300,000	5.0%	0.218	0	1
More than 300,000	0.40%	0.063	0	1
Gender (0 = Male)	47.6%	0.499	0	1
Marital status (0 = Unmarried)	93.6%	0.254	0	1
Education	.	.	.	.
< = Primary school	10.1%	0.301	0	1
Junior high school	20.4%	0.403	0	1
High or secondary school	29.5%	0.456	0	1
College	24.9%	0.432	0	1
Undergraduate	14.4%	0.351	0	1
Master degree	0.5%	0.073	0	1
Doctoral degree	0.1%	0.037	0	1
Healthcare insurance (0 = No)	93.2%	0.251	0	1