Table 1.
Characteristics of the eligible ARIC sample at Visit 2 (1990–1992), n=13997
| Characteristic | n(%) or mean (SD)† |
|---|---|
| Age | 57.5 (5.7) |
| Female | 7788 (55.6%) |
| Education | |
| Less than high school | 2998 (21.4%) |
| High school or equivalent | 5831 (41.7%) |
| Greater than high school | 5168 (36.9%) |
| Race-Center | |
| White, MN | 3768 (26.9%) |
| White, MD | 3613 (23.3%) |
| White, NC | 3258 (23.3%) |
| Black, NC | 373 (2.7%) |
| Black, MS | 2985 (21.3%) |
| APOE | |
| 0 ε4 alleles | 9413 (67.3%) |
| 1 ε4 allele | 3817 (27.3%) |
| 2 ε4 alleles | 355 (2.5%) |
| Smoking | |
| Never | 5568 (39.8%) |
| Former | 5300 (37.9%) |
| Current | 3122 (22.3%) |
| Alcohol Use | |
| Current | 7907 (56.5%) |
| Former | 2935 (21.0%) |
| Never | 3147 (22.5%) |
| Hypertension | |
| No | 8987 (64.2%) |
| Yes | 4967 (35.5%) |
| Diabetes | |
| No | 11858 (84.7%) |
| Yes | 2076 (14.8%) |
| Lipid-lowering Medication Use | |
| No | 12387 (88.5%) |
| Yes | 743 (5.3%) |
| Physically Active | |
| No | 3838 (27.4%) |
| Yes | 10110 (72.2%) |
| Health Insurance at Visit 1 | |
| No | 1210 (8.6%) |
| Yes | 12765 (91.2%) |
| Body Mass Index (kg/m2) | 28.0 (5.4) |
| Prudent Diet Score (unitless)* | 0.01 (0.99) |
| Western Diet Score (unitless)* | −0.02 (0.99) |
| Total Cholesterol (mg/dL) ‡ | 210.0 (39.5) |
| LDL-c (mg/dL)‡ | 133.6 (36.8) |
| HDL-c (mg/dL) ‡ | 49.5 (16.7) |
| Triglycerides (mg/dL) ‡ | 136.1 (90.3) |
| Missing any lipid data | 322 (2.3%) |
| Missing any covariate data | 1738 (12.4%) |
| Alive but Missing Visit 4 Summary Z Score | 2566 (18.3%) |
| Alive but Missing Visit 5 Summary Z Score | 4108 (29.3%) |
| Deceased by Visit 4 | 511 (3.7%) |
| Deceased by Visit 5 | 4036 (28.8%) |
Abbreviations: ARIC, Atherosclerosis Risk in Communities; LDL-c, low density lipoprotein; HDL-c, high density lipoprotein.
*
Z-scores for adherence, higher values indicate greater adherence.
†
Categorical variable frequencies (%) may not add up to 13,997 (100%) due to missing data.
‡
In mmol/L:Total cholesterol: 5.43(1.02), LDL-c: 3.45(0.95), HDL-c: 1.28(0.43), Triglycerides: 1.54(1.02)