Table 4.

Weighted characteristics of the adults (20 years and older) participants in NHANES 1999–2006.

	NHANES 1999–2006	NHANES 1999–2002	NHANES 2003–2006
Blood lead (μg/dL), GM (SE)	1.59 (0.02)	1.70 (0.02)	1.49 (0.02)
Hematocrit (%), GM (SE)	42.60 (0.10)	42.46 (0.14)	42.73 (0.14)
Age (years), GM(SE)	43.63 (0.26)	43.49 (0.32)	43.77 (0.41)
BMI, GM (SE)	27.54 (0.09)	27.37 (0.12)	27.71 (0.12)
Serum cotinine, ng/mL, GM (SE)	0.59 (0.05)	0.62 (0.07)	0.56 (0.06)
Weight
Obese, % (SE)	31.90 (0.66)	30.28 (0.93)	33.41 (0.92)
Overweight, % (SE)	33.56 (0.51)	34.20 (0.82)	32.96 (0.63)
Normal, % (SE)	34.50(0.60)	35.53(0.85)	33.63 (0.84)
Sex
Male	49.17 (0.34)	49.09 (0.48)	49.25 (0.48)
Female	50.83 (0.34)	50.91 (0.48)	50.75 (0.48)
Smokers
Current smoker: % (SE)	24.91 (0.59)	24.70 (0.86)	25.11 (0.81)
Former smoker: % (SE)	25.10 (0.53)	25.17 (0.84)	25.03 (0.66)
Never smoked: % (SE)	50.00 (0.74)	50.14 (1.24)	49.86 (0.85)
Alcohol consumption
No alcohol	32.74 (0.98)	32.63 (1.52)	32.85 (1.26)
1–4 drinks per week	59.99 (1.05)	59.92 (1.68)	60.06 (1.29)
>4 drinks per week	7.26 (0.36)	7.45 (0.51)	7.09 (0.51)
Education level
Less than high school	20.04 (0.64)	22.07 (0.84)	18.10 (0.91)
Completed high school	26.05 (0.59)	25.81 (0.96)	26.29 (0.68)
More than high school	53.91 (0.90)	52.12 (1.36)	55.61 (1.17)
Calorie intake
Normal intake: % (SE)	60.31 (0.59)	60.69 (0.74)	59.95 (0.92)
Excessive intake: % (SE)	39.69 (0.59)	39.31 (0.74)	40.05 (0.92)
Race
White (non-Hispanic)% (SE)	71.84 (1.44)	71.37 (1.83)	72.28 (2.19)
Non-Hispanic Black: % (SE)	10.99 (0.89)	10.66 (1.20)	11.30 (1.31)
Mexican-American: % (SE)	7.24 (0.67)	6.87 (0.82)	7.59 (1.06)
Other Hispanic: % (SE)	5.12 (0.88)	6.83 (1.72)	3.49 (0.50)
Other: % (SE)	4.81 (0.34)	4.26 (0.52)	5.34 (0.45)