Table 1.
Weighed characteristics of the study variables (N=1,723), NHANES, 2011–2014.
| Variable | Point Estimate (SE) | ||||
|---|---|---|---|---|---|
| Entire Sample |
1st Quartile | 2nd Quartile | 3rd Quartile | 4th Quartile | |
| Age, mean years | 68.4 (0.2) | 69.3 (0.4) | 68.7 (0.3) | 67.5 (0.4) | 68.2 (0.5) |
| Gender, % Female | 58.4 | 67.4 | 57.6 | 56.2 | 51.9 |
| Race-Ethnicity, % non-Hispanic White | 81.8 | 82.6 | 81.9 | 81.4 | 81.4 |
| Smoking Status, % | |||||
| Every day | 8.2 | 2.9 | 5.9 | 8.3 | 15.3 |
| Some days | 1.3 | 0.3 | 1.8 | 0.8 | 2.2 |
| Former smoker | 37.1 | 40.7 | 38.1 | 35.4 | 33.8 |
| Never smoker | 53.6 | 55.9 | 54.0 | 55.3 | 48.5 |
| Body Mass Index, mean kg/m2 | 28.3 (0.2) | 27.1 (0.2) | 28.3 (0.3) | 28.8 (0.4) | 28.9 (0.3) |
| Sleep, hrs/night | 7.2 (0.03) | 7.2 (0.1) | 7.1 (0.1) | 7.2 (0.1) | 7.1 (0.1) |
| Depression, mean PHQ-9 | 2.4 (0.1) | 2.3 (0.2) | 2.1 (0.1) | 2.2 (0.1) | 2.8 (0.2) |
| Moderate-to-Vigorous Physical Activity, mean min/week | 138.1 (8.7) | 170.9 (15.8) | 151.1 (16.5) | 128.8 (15.2) | 98.4 (10.6) |
| Dietary Inflammatory Index, mean | −0.25 (0.07) | −2.79 (0.05) | −0.78 (0.02) | 0.56 (0.02) | 2.21 (0.03) |
| CERAD Word Learning | |||||
| Trial 1, mean words | 5.2 (0.1) | 5.2 (0.1) | 5.1 (0.1) | 5.3 (0.1) | 5.0 (0.1) |
| Trial 2, mean words | 7.2 (0.1) | 7.3 (0.1) | 7.2 (0.1) | 7.2 (0.1) | 6.9 (0.1) |
| Trial 3, mean words | 8.0 (0.1) | 7.9 (0.1) | 8.0 (0.1) | 7.9 (0.1) | 7.9 (0.1) |
| Delay Trial, mean words | 6.6 (0.1) | 6.7 (0.1) | 6.5 (0.2) | 6.6 (0.1) | 6.3 (0.1) |
| Animal Fluency, mean number of animals | 18.9 (0.2) | 19.4 (0.4) | 19.1 (0.3) | 18.7 (0.3) | 18.1 (0.3) |
| Digit Symbol Substitution Test, mean | 55.9 (0.6) | 57.2 (1.1) | 56.4 (1.1) | 56.1 (1.2) | 53.3 (1.0) |