Table 1.
Age standardized characteristics of study population at blood draw, by quarters of leukocyte telomere length z score (n=4676). Values are mean (SD)
| Baseline characteristics | Quarters of leukocyte telomere length z score | P for trend | |||
|---|---|---|---|---|---|
| Age at blood draw*, years | 59.6 (6.3) | 59.2 (6.6) | 58.6 (6.6) | 57.7 (6.8) | <0.001 |
| Body mass index at blood draw, kg/m2 | 25.5 (4.7) | 25.2 (4.4) | 25.0 (4.5) | 25.3 (4.3) | 0.13 |
| Pack years† | 23.9 (20.8) | 22.8 (18.8) | 23.5 (20.4) | 22.9 (18.9) | 0.024 |
| Physical activity, metabolic equivalent hours of activity/week | 16.4 (24.4) | 16.7 (21.5) | 16.4 (19.5) | 16.6 (18.8) | 0.87 |
| Total energy, kcal | 1790 (508) | 1757 (485) | 1743 (487) | 1768 (494) | 0.72 |
| Vegetables, servings/day | 3.1 (1.8) | 3.1 (1.6) | 3.1 (1.7) | 3.2 (1.7) | 0.51 |
| Fruits, servings/day | 2.4 (1.3) | 2.4 (1.3) | 2.4 (1.5) | 2.5 (1.4) | 0.81 |
| Whole grains, servings/day | 1.5 (1.3) | 1.5 (1.2) | 1.5 (1.2) | 1.5 (1.3) | 0.77 |
| Fish, servings/day | 0.4 (0.4) | 0.3 (0.3) | 0.3 (0.3) | 0.4 (0.3) | 0.68 |
| Meats, servings/day | 0.8 (0.5) | 0.7 (0.5) | 0.7 (0.5) | 0.8 (0.5) | 0.54 |
| Legumes, servings/day | 0.4 (0.3) | 0.4 (0.3) | 0.4 (0.3) | 0.4 (0.4) | 0.72 |
| Nuts, servings/day | 0.4 (0.6) | 0.4 (0.5) | 0.3 (0.5) | 0.4 (0.6) | 0.91 |
| Alcohol, g/day | 5.5 (9.8) | 5.7 (9.9) | 5.3 (10.1) | 5.5 (9.2) | 0.90 |
| Total fat, g/day | 62.5 (22.5) | 61.4 (23.2) | 60.3 (21.4) | 61.4 (22.7) | 0.76 |
| Total saturated fat, g/day | 21.0 (8.0) | 20.7 (8.6) | 20.3 (8.0) | 20.5 (8.1) | 0.95 |
| Total monounsaturated fat, g/day | 24.0 (9.2) | 23.6 (9.4) | 23.2 (8.7) | 23.6 (9.3) | 0.78 |
*Values for age at blood draw are not age adjusted.
†Among ever smokers.