Table 2.

Analysis of demographic differences in SGHR (Nonparametric Test)

Variable	Z/Ka	p-value
Age	573.788Z	< 0.001
Young-Middle	-12.579Z	< 0.001
Young-Old	−23.762Z	< 0.001
Middle-Old	−11.167Z	< 0.001
Gender	5.210K	< 0.001
Residence	−16.692K	< 0.001
Household register	−17.374K	< 0.001
Marital status	61.015Z	< 0.001
Divorced- Never married	3.538Z	0.004
Divorced-Married with Spouse Present	4.105Z	< 0.001
Divorced-Cohabitated	0.638Z	1.000
Divorced-Widowed	−6.922Z	< 0.001
Never married- Married with Spouse Present	−0.456Z	1.000
Never married- Cohabitated	−1.068Z	1.000
Never married-Widowed	−5.381Z	< 0.001
Married with Spouse Present- Cohabitated	−1.198Z	1.000
Married with Spouse Present-Widowed	−6.328Z	< 0.001
Cohabitated-Widowed	−2.899Z	1.000
Education level	627.150Z	< 0.001
University/college and above-Primary school and below	20.144Z	< 0.001
University/college and above-Junior middle school	8.397Z	< 0.001
University/college and above-High school	2.778Z	0.033
High school-Primary school and below	18.031Z	< 0.001
High school-Junior middle school	5.684Z	< 0.001
Junior middle school -Primary school and below	15.106Z	< 0.001
Choice of medical institution	177.412Z	< 0.001
General hospital-Clinic	− 0.181Z	1.000
General hospital-Community health service station/Village clinic	−8.677Z	< 0.001
General hospital-Community health service centre// Township hospital	−9.041Z	< 0.001
General hospital-Special hospital	−3.299Z	< 0.001
Clinic-Community health service station/Village clinic	7.870Z	< 0.001
Clinic-Community health service centre// Township hospital	8.033Z	< 0.001
Clinic-Special hospital	3.279Z	0.010
Community health service station/Village clinic-Community health service centre// Township hospital	0.587z	1.000
Community health service station/Village clinic-Special hospital	8.404Z	< 0.001
Community health service centre// Township hospital - Special hospital	8.453Z	< 0.001
Type of medical insurance	366.139Z	< 0.001
Urban employee basic medical insurance-Public medical insurance	0.152Z	1.000
Urban employee basic medical insurance-Urban resident basic medical insurance	−3.688Z	0.002
Urban employee basic medical insurance-Supplementary medical insurance	−2.119Z	0.341
Urban employee basic medical insurance-New rural cooperative medical insurance	−17.156Z	< 0.001
Public medical insurance-Urban resident basic medical insurance	−2.001Z	0.454
Public medical insurance-Supplementary medical insurance	−1.850Z	0.643
Public medical insurance-New rural cooperative medical insurance	−7.126Z	< 0.001
Urban resident basic medical insurance-Supplementary medical insurance	−0.889Z	1.000
Urban resident basic medical insurance-New rural cooperative medical insurance	−8.852Z	< 0.001
Supplementary medical insurance-New rural cooperative medical insurance	−1.615Z	1.000

Note: ^aindicates that the K value is Mann-Whitney test statistics, used for dichotomous variables including gender, residence and household registration; The Z value indicates Kruskal-Wallis test statistics for the remaining multiclassification variables in the table