Table 1.

Selected Characteristics of the U.S. Population of Adult Men Aged 20 Years and Older.

Characteristics	Unweighted sample size (N)	Weighted mean or percentage (SE)a
Age, years	3,746	45.1 (±0.38)
Age, categorical
20-30	1,249	39.4%
40-49	712	24.1%
50-59	521	17.6%
≥60	1,264	18.9%
Race/ethnicity
Mexican American	829	8.6%
Non-Hispanic White	2,147	80.5%
Non-Hispanic Black	770	10.9%
Education
Less than 9th grade	505	5.8%
9th Grade-11th grade	562	10.7%
High school graduate/GED or equivalent	934	27.5%
Some college or associate degree	966	29.2%
College graduate or above	778	26.8%
Cigarette smoking
Never	1,363	38.8%
Former	1,066	24.4%
Current	1,314	36.9%
Body mass index (kg/m2)
<25	1,046	28.6%
≥25-29.99	1,492	40.0%
≥30	1,145	31.4%
Type 2 diabetes
No	3,290	91.4%
Yes	456	8.6%
Physical activity status
Moderate
No	1,820	57.1%
Yes	1,833	42.9%
Vigorous
No	1,251	40.5%
Yes	2,343	59.5%
Serum cotinine (ng/ml)	3,591	82.8 (±5.42)
Creatinine (mg/dl)	3,691	4.8 (±0.02)

Note. SE = standard error.

^aSampling weights were applied.