Table 1.

Demographic characteristic participants in year 2011, 2015 and overall sample.

	2011 (N = 8189)		2015 (N = 8952)		All (N = 17,141)
	n	%	n	%	n	%
Gender
Male	3841	46.90	4271	47.71	8112	47.33
Female	4348	53.10	4681	52.29	9029	52.67
Age
45–54	2843	34.72	2564	28.64	5407	31.54
55–64	3218	39.30	3467	38.73	6685	39.00
65–74	1589	19.40	2242	25.04	3831	22.35
75 +	539	6.58	679	7.58	1218	7.11
Education
Middle school or low	5736	70.05	5947	66.43	11,683	68.16
High school/vocational school	2205	26.93	2672	29.85	4877	28.45
College or above	248	3.03	333	3.72	581	3.39
Marital status
Married	7254	88.58	7886	88.09	15,140	88.33
Single	935	11.42	1066	11.91	2001	11.67
Consumption
Q1 (most deprived)	2134	26.06	1880	21.00	4014	23.42
Q2	1997	24.39	1944	21.72	3941	22.99
Q3	1683	20.55	1835	20.50	3518	20.52
Q4	1374	16.78	1757	19.63	3131	18.27
Q5 (most affluent)	1001	12.22	1536	17.16	2537	14.80
Insurance
No	443	5.41	91	1.02	534	3.12
UEMI	632	7.72	1087	12.14	1719	10.03
URMI	305	3.72	488	5.45	793	4.63
NCMI	6534	79.79	7135	79.70	13,669	79.74
Others	275	3.36	151	1.69	426	2.49
Residence type
Rural	5188	63.35	5329	59.53	10,517	61.36
Urban	1202	14.68	1507	16.83	2709	15.80
Migrants	1799	21.97	2116	23.64	3915	22.84
Region
Eastern region	2650	32.36	2657	29.68	5307	30.96
Central region	1471	17.96	1715	19.16	3186	18.59
Western region	3841	46.90	4393	49.07	8234	48.04
North-eastern region	227	2.77	187	2.09	414	2.42

UEMI urban employee medical insurance, URMI urban resident medical insurance, NCMI new cooperative medical insurance.

This table provides the distribution of demographic characteristics of participants in year 2011, 2015, and overall.