Table 1.

Demographic distribution of NHANES 2005 – 2006 and 2011 – 2012 participants ≥ 6 years-old (N = 4690).

Variable	Exclusive Smokera		Non-userb
	Nc	% (SEd)	Nc	% (SEd)
NHANES Cycle
2005 – 2006	569	11.22 (0.86)	2261	36.85 (2.15)
2011 – 2012	298	9.06 (0.64)	1562	42.86 (2.25)
Age (yr)
6–11	0	0.00 (0.00)	276	4.04 (0.37)
12–19	133	1.33 (0.15)	1002	11.13 (0.73)
20–39	306	7.82 (0.68)	968	23.47 (1.17)
40–59	279	8.41 (0.59)	756	24.44 (1.12)
≥60	149	2.73 (0.36)	821	16.63 (1.11)
Race/ethnicity
Mexican-American	97	1.10 (0.22)	828	7.53 (0.99)
Non-Hispanic Black	275	2.77 (0.41)	956	8.67 (1.24)
Non-Hispanic White	403	14.45 (1.03)	1448	54.11 (2.15)
Other Hispanic or Other/Multi Race	92	1.97 (0.29)	591	9.40 (0.81)
Sex
Female	354	8.97 (0.62)	2065	42.57 (0.88)
Male	513	11.32 (0.72)	1758	37.15 (0.75)
Poverty Statuse
No	621	16.26 (0.83)	2971	69.41 (1.52)
Yes	246	4.03 (0.47)	852	10.30 (1.10)
BMIf
Healthy weight	293	6.79 (0.61)	1467	28.22 (1.51)
Overweight/Obese	549	12.91 (0.87)	2289	50.34 (1.25)
Underweight	25	0.59 (0.17)	67	1.15 (0.22)

^aParticipants reporting using cigarettes, cigars, or pipes during 5 days prior to physical examination and with serum cotinine measurement >10 ng/mL

^bParticipants reporting not using tobacco or nicotine products during 5 days prior to physical examination or with serum cotinine measurement ≤10 ng/mL

^cSample size, not sample-weighted

^dStandard error, sample-weighted

^eNo: Poverty Income Ratio (PIR) ≥ 1.00; Yes: PIR < 1.00

^fFor children and teens 6 – 19 yr of age:

Healthy weight: BMI 5^th to 85^th percentile

Overweight/Obese: BMI ≥ 85^th percentile

Underweight: BMI < 5^th percentile

For adults ≥ 20 yr of age:

Healthy weight: BMI 18.5 to < 25.0 kg/M².

Overweight/Obese: BMI ≥ 25.0 kg/M².

Underweight: BMI < 18.5 kg/M².