Table 1. Summary statistics for all samples and subgroups from different areas or with different medical expense levels.

		Area		Inpatient treatment cost		Outpatient treatment cost		Self-treatment cost
	All (n = 2093)	Urban (n = 1268)	Rural (n = 823)	Low (n = 178)	High (n = 152)	Low (n = 605)	High (n = 587)	Low (n = 660)	High (n = 541)
Gender
Male	1053	665	388	93	70	305	270	327	259
Female	1038	603	435	85	81	300	316	332	282
Ag (mean±sd )	57.0±10.4	56.5±10.4	57.7±10.4	62.9±11.8	62.4±12.2	56.8±10.0	59.3±11.2	56.3±10.0	58.4±10.8
Age group
45–50	793	501	292	37	40	224	187	262	172
51–60	657	413	244	44	34	197	163	209	178
61–70	305	141	164	38	29	95	110	93	84
>70	298	189	109	56	48	78	119	79	98
Marital status
Single/Divorced/Widowed	204	118	86	26	18	50	70	63	60
Married	1886	1149	737	152	134	553	517	597	481
Education
No schooling	181	43	138	18	21	52	58	64	50
Primary	348	89	259	44	41	113	101	137	97
Junior high	524	254	270	39	38	167	137	163	128
Senior high	413	278	135	36	24	115	116	138	103
Junior college and more	615	597	18	40	27	155	172	156	162
Occupation
Governments	361	355	6	23	15	99	92	85	92
Enterprises	361	303	58	17	18	86	100	117	98
Farmers	430	20	410	30	34	159	104	183	89
Small private business	144	89	55	6	5	35	28	44	44
Others	173	68	105	10	15	50	34	60	42
Retired	376	333	43	63	42	100	154	93	100
Unemployed	217	81	136	25	23	66	67	71	68
Distance to the nearest hospital (meter)
< = 1000	1544	971	573	146	109	449	443	488	393
1001–5000	509	289	220	31	37	152	127	164	137
> = 5001	36	8	28	1	6	4	14	8	9
Type of the nearest hospital
Grade I hospital	904	402	502	64	69	289	275	322	227
Grade II hospital	384	322	62	41	23	106	92	112	107
Grade III hospital	454	373	81	34	36	105	133	112	113
Private hospital	199	116	83	22	16	53	54	46	61
Others	147	53	94	16	8	51	32	68	31
Travel time to the nearest hospital (minutes)
< = 5	953	578	375	78	58	289	241	294	229
6–10	663	439	224	58	55	179	197	211	170
11–30	454	243	211	37	38	126	144	145	137
> = 31	17	5	12	5	0	8	3	9	4
Region
Eastern	1059	642	417	74	94	327	333	358	249
Central	515	306	209	36	27	117	110	123	129
Western	518	320	198	68	31	161	144	179	163
Areas
Rural	824	–	–	65	70	278	218	329	204
Urban	1268	–	–	112	82	326	369	331	336
Household income (1 K RMB): mean±sd	94.1±155.1	116.9±187.2	57.8±66.7	100.5±260.7	72.8±63.4	85.5±145.3	106.4±176.7	83.9±100.4	97.5±141.8
Per capita income (1 K RMB): mean±sd	31.9±53.7	41.4±64.9	16.8±19.9	34.8±86.4	25.7±24.2	28.8±54.8	35.4±57.4	27.5±34.8	33.7±59.5
Physical condition
Healthy	882	546	336	29	16	250	140	305	159
Just so-so	829	513	316	69	51	257	277	278	237
Slightly sick	238	124	114	44	40	64	99	53	89
Sick	103	58	45	27	29	24	54	17	43
Seriously sick	37	24	13	9	16	10	17	7	13