Table I.

Number of Participants by Sex, Race/Ethnicity, and Age in Four NHANES Phases

	1988–1991 (n=9901)		1991–1994 (n=9717)		1999–2000 (n=5448)		2001–2002 (n=5993)
Race/Ethnicity, Age (yr)	Men	Women	Men	Women	Men	Women	Men	Women
Total	4781	4812	4083	5187	2337	2618	2653	2905
Non‐Hispanic white	2244	2260	1585	2283	1131	1222	1441	1613
18–39	628	656	417	670	368	465	448	600
40–59	564	513	382	562	289	278	434	405
≥60	1052	1091	783	1051	474	479	559	608
Non‐Hispanic black	1190	1270	1246	1632	485	564	575	628
18–39	558	601	635	870	205	247	255	293
40–59	323	318	322	458	138	151	171	169
≥60	309	358	289	304	142	166	149	166
Mexican American	1347	1282	1252	1272	721	832	637	664
18–39	733	686	664	703	329	407	335	361
40–59	302	311	291	285	168	203	165	149
≥60	312	285	297	284	224	222	137	154
NHANES=National Health and Nutrition Examination Survey