Table 1.

Unweighted sample sizes for participants in NHANES 2007 to 2008

All NHANES participants, nNonsmokers* only, n
Total6,5995,206
Males3,3142,459
Females3,2852,747
Non-Hispanic Whites2,7552,046
Non-Hispanic Blacks1,4111,056
Mexican Americans1,3531,205
Other race or ethnicity1,080899
6-11 y879875
12-19 y960840
≥20 y4,7603,491
  • *Nonsmokers are defined as participants with a serum cotinine concentration <10 ng/mL.