Table 1.

Characteristics of NHANES Participants, 2005–2016

	2005–2006		2007–2008		2009–2010		2011–2012		2013–2014		2015–2016
	n	%	n	%	n	%	n	%	n	%	n	%
Gender
Male	2312	48.2%	2687	49.6%	2759	49.7%	2483	50.4%	2585	48.1%	2508	48.9%
Female	2487	51.8%	2728	50.4%	2787	50.3%	2442	49.6%	2787	51.9%	2626	51.1%
Age, years
18–39	2164	45.1%	1924	35.5%	2007	36.2%	1893	38.4%	2025	37.7%	1867	36.4%
40–59	1324	27.6%	1652	30.5%	1787	32.2%	1487	30.2%	1705	31.7%	1602	31.2%
60–79	1038	21.6%	1521	28.1%	1431	25.8%	1272	25.8%	1360	25.3%	1369	26.7%
80+	273	5.7%	318	5.9%	321	5.8%	273	5.5%	282	5.2%	296	5.8%
Race/Ethnicity
Non-Hispanic White	2311	48.2%	2532	46.8%	2683	48.4%	1836	37.3%	2315	43.1%	1710	33.3%
Non-Hispanic Black	1143	23.8%	1123	20.7%	986	17.8%	1319	26.8%	1087	20.2%	1096	21.3%
Hispanic	1161	24.2%	1569	29.0%	1606	29.0%	987	20.0%	1234	23.0%	1590	31.0%
Other Race	184	3.8%	191	3.5%	271	4.9%	783	15.9%	736	13.7%	738	14.4%
Number of Comorbidities
0	2908	60.6%	2936	54.2%	3131	56.5%	2846	57.8%	3030	56.4%	2846	55.4%
1	1125	23.4%	1371	25.3%	1382	24.9%	1149	23.3%	1308	24.3%	1184	23.1%
2	454	9.5%	613	11.3%	591	10.7%	514	10.4%	594	11.1%	633	12.3%
3	176	3.7%	291	5.4%	256	4.6%	232	4.7%	251	4.7%	248	4.8%
4+	136	2.8%	204	3.7%	186	3.4%	184	3.7%	189	3.6%	223	4.4%