Changes of equality of medical service utilization in China between 1993 and 2018: findings from six waves of nationwide household interview survey

Table 1 Sample size in six waves of NHSS, 1993–2018

	Sample size	1993	1998	2003	2008	2013	2018
Urban	Sample counties/cities/districts	27	28	28	28	78	78
	Households	15,644	16,767	16,811	16,802	46,802	49,474
	Population	54,022	54,417	49,698	46,510	133,393	130,781
	Family size(mean)	3.4	3.2	3.0	2.8	2.9	2.6
Rural	Sample counties/cities/districts	65	67	67	66	78	78
	Households	38,766	40,177	40,212	39,654	46,811	44,602
	Population	160,822	161,089	143,991	130,991	140,295	125,523
	Family size(mean)	4.2	4.0	3.6	3.3	3.0	2.8
All	Sample counties/cities/districts	92	95	95	94	156	156
	Households	54,410	56,944	57,023	56,456	93,613	94,076
	Population	214,844	215,506	193,689	177,501	273,688	256,304
	Family size(mean)	3.9	3.8	3.4	3.1	2.9	2.7

ISSN: 1475-9276