Table 1.

Demographic Characteristics of Employed Adult Participants of the National Health and Nutrition Examination Survey (NHANES), 1999–2004

Sample Characteristics	NHANES Sample	Estimated Population	Percent of Total	SE
Total	8,987	134,047,451	100
Race/Ethnicity:
Non-Hispanic white (1)	4,136	95,473,029	71.22	1.57
Non-Hispanic black (2)	1,834	13,818,271	10.31	0.92
Hispanic (3)	2,663	18,290,900	13.65	1.38
Other (4)	354	6,465,252	4.82	0.45
Education:
Less than high school (1)	2,713	23,270,470	17.36	0.61
High school or equivalent (2)	2,141	33,558,846	25.04	0.89
Greater than high school (3)	4,133	77,218,136	57.61	1.11
Occupation:
White collar	4,495	76,577,879	57.13	1.25
Service worker	1,760	20,296,780	15.14	0.54
Farmer	348	3,622,144	2.70	0.25
Blue collar	2,384	33,550,648	25.03	1.03
Sex:
Male	4,819	72,802,630	54.31	0.63
Female	4,168	61,244,821	45.69	0.63

Note: SE = standard error of percent