Table 1. Population Characteristics Stratified by Race/Ethnicity: National Health and Nutrition Examination Survey (NHANES), 2001-2006a.
| Characteristics | Total Study Population (N=3628) % (n) | Non – Hispanic Whites (n=2690) % (n) | Non – Hispanic Blacks (n=938) % (n) | P-valueb | |
|---|---|---|---|---|---|
| Age (years) | < 0.0001 | ||||
| 20 –< 35 | 26.8 (848) | 25.4 (552) | 36.9 (296) | ||
| 35 – < 45 | 21.1 (618) | 21.0 (441) | 21.6 (177) | ||
| 45 – < 55 | 22.8 (672) | 22.9 (487) | 22.0 (185) | ||
| 55 – < 65 | 13.7 (533) | 14.3 (407) | 9.9 (126) | ||
| 65 + | 15.5 (957) | 16.4 (803) | 9.5 (154) | ||
| Sex | |||||
| Male | 49.0 (1865) | 49.5 (1396) | 46.1 (469) | 0.07 | |
| Female | 51.0 (1763) | 50.5 (1294) | 53.9 (469) | ||
| Education | < 0.0001 | ||||
| Less than high school | 12.9 (658) | 11.2 (404) | 25.0 (254) | ||
| High school | 27.1 (958) | 27.5 (733) | 24.1 (225) | ||
| More than high school | 60.0 (2012) | 61.3 (1553) | 50.9 (459) | ||
| Smoking Status | < 0.0001 | ||||
| Current | 25.8 (868) | 26.1 (642) | 24.2 (226) | ||
| Former | 25.7 (1019) | 27.4 (854) | 13.9 (165) | ||
| Never | 48.5 (1741) | 46.5 (1194) | 61.9 (547) | ||
| Body Mass Index (kg/m2) | < 0.0001 | ||||
| < 20 | 4.8 (185) | 4.8 (137) | 5.1 (48) | ||
| 20 - < 25 | 29.4 (1019) | 30.4 (809) | 22.8 (210) | ||
| 25 - < 30 | 34.3 (1265) | 35.0 (977) | 29.4 (288) | ||
| 30+ | 31.5 (1159) | 29.8 (767) | 42.7 (392) | ||
| Activity Levelc | 0.60 | ||||
| More Active | 37.2 (1474) | 36.9 (1093) | 38.9 (381) | ||
| About the same | 41.1 (1446) | 41.3 (1070) | 39.8 (376) | ||
| Less Active | 21.7 (708) | 21.8 (527) | 21.3 (181) | ||
| Mean (SE) | |||||
| Waist circumference (cm) | 97.2 (0.3) | 97.1 (0.4) | 97.4 (0.6) | 0.78 | |
| Alcohol (gm/day) | 4.5 (0.6) | 4.4 (0.5) | 5.1 (1.5) | 0.63 | |
| Serum 25[OH]D (ng/mL) | 24.2 (0.4) | 25.6 (0.4) | 14.6 (0.3) | < 0.0001 | |
| Systolic Blood Pressure (mmHg) | 121.9 (0.4) | 121.5 (0.4) | 124.7 (0.7) | < 0.0001 | |
| Diastolic Blood Pressure (mmHg) | 71.1 (0.3) | 70.9 (0.3) | 72.1 (0.5) | < 0.05 | |
a
Data presented as column percentages; means and percentages are weighted to the non-institutionalized US population. Data are shown as either % (n) or means (SE).
b
2-sided P-value for χ2 statistics between demographic and race or t-test for difference in means between non-Hispanic Blacks and Whites.
c
Activity level was based on participant self-report compared to others the same age.