Demographic characteristics, hemoglobin and vitamin D levels, and prevalence of chronic conditions in persons ≥ 60 years: NHANES III and NHANES 2001-2006
| . | NHANES III* phases 1 and 2, 1988-1994 (n = 5100) . | NHANES III† phase 2 only 1991-1994 (n = 2610) . | NHANES 2001-2006 continuous* (N = 4575) . | NHANES 2001-2002 Continuous† (N = 1493) . |
|---|---|---|---|---|
| Age, y, mean (SE) | 70.6 (0.2) | 70.9 (0.4) | 71.0 (0.2) | 71.0 (0.3) |
| Female sex, % (SE) | 57.0 (0.7) | 57.4 (0.01) | 56.0 (0.8) | 56.9 (1.0) |
| Race/ethnicity, % (SE) | ||||
| Non-Hispanic white | 84.9 (1.3) | 83.3 (2.0) | 82.6 (1.6) | 82.2 (3.0) |
| Non-Hispanic black | 7.9 (0.7) | 7.8 (1.0) | 8.2 (0.9) | 7.7 (1.7) |
| Mexican American | 2.3 (0.2) | 2.4 (0.3) | 3.4 (0.7) | 3.1 (1.0) |
| Other | 4.9 (0.9) | 6.5 (1.5) | 5.9 (0.8) | 7.0 (2.4) |
| Anemia, % (SE) | 9.1 (0.5) | 8.3 (0.7) | 8.7 (0.5) | 7.9 (0.9) |
| Hemoglobin level, g/L, mean (SE) | 13.9 (0.03) | 14.0 (0.05) | 14.2 (0.04) | 14.2 (0.08) |
| Vitamin D deficiency, % (SE) | 34.3 (1.0) | 34.0 (1.6) | 35.7 (1.3) | 35.6 (2.5) |
| Vitamin D (ng/mL), mean (SE) | 24.3 (0.2) | 24.4 (0.2) | 22.8 (0.3) | 22.7 (0.5) |
| Chronic kidney disease, % (SE) | 22.4 (0.8) | 22.3 (1.3) | 29.6 (0.9) | 29.2 (1.7) |
| . | NHANES III* phases 1 and 2, 1988-1994 (n = 5100) . | NHANES III† phase 2 only 1991-1994 (n = 2610) . | NHANES 2001-2006 continuous* (N = 4575) . | NHANES 2001-2002 Continuous† (N = 1493) . |
|---|---|---|---|---|
| Age, y, mean (SE) | 70.6 (0.2) | 70.9 (0.4) | 71.0 (0.2) | 71.0 (0.3) |
| Female sex, % (SE) | 57.0 (0.7) | 57.4 (0.01) | 56.0 (0.8) | 56.9 (1.0) |
| Race/ethnicity, % (SE) | ||||
| Non-Hispanic white | 84.9 (1.3) | 83.3 (2.0) | 82.6 (1.6) | 82.2 (3.0) |
| Non-Hispanic black | 7.9 (0.7) | 7.8 (1.0) | 8.2 (0.9) | 7.7 (1.7) |
| Mexican American | 2.3 (0.2) | 2.4 (0.3) | 3.4 (0.7) | 3.1 (1.0) |
| Other | 4.9 (0.9) | 6.5 (1.5) | 5.9 (0.8) | 7.0 (2.4) |
| Anemia, % (SE) | 9.1 (0.5) | 8.3 (0.7) | 8.7 (0.5) | 7.9 (0.9) |
| Hemoglobin level, g/L, mean (SE) | 13.9 (0.03) | 14.0 (0.05) | 14.2 (0.04) | 14.2 (0.08) |
| Vitamin D deficiency, % (SE) | 34.3 (1.0) | 34.0 (1.6) | 35.7 (1.3) | 35.6 (2.5) |
| Vitamin D (ng/mL), mean (SE) | 24.3 (0.2) | 24.4 (0.2) | 22.8 (0.3) | 22.7 (0.5) |
| Chronic kidney disease, % (SE) | 22.4 (0.8) | 22.3 (1.3) | 29.6 (0.9) | 29.2 (1.7) |