Table 1.
Comparison of baseline characteristics among non-smokers in the sampled cases, sub-cohort, and weighted to the WHI-OS non-smoking population*
| Sample | Weighted to Population¶ | |||
|---|---|---|---|---|
|
| ||||
| Subcohort (n=1,808) | Cases (n=1,587) | Cohort (N=50,577) | Cases (N=2,138) | |
| Age (years) | 69 (63, 73) | 69 (64, 73) | 62 (56, 68) | 69 (64, 73) |
| Race | ||||
| White | 83% | 84% | 86% | 88% |
| Black | 9% | 8% | 6% | 6% |
| Other | 8% | 8% | 8% | 6% |
| BMI (kg/m2) | 26 (23, 29) | 27 (24, 31) | 26 (23, 30) | 27 (24, 31) |
| Waist circumference (cm) | 83 (75, 92) | 85 (77, 96) | 83 (75, 92) | 85 (77, 95) |
| Physical activity (MET-hrs/week) | 11 (4, 20) | 8 (3, 18) | 10 (3, 20) | 8 (2, 17) |
| AHEI score | 35 (29, 42) | 35 (29, 41) | 35 (29, 42) | 35 (29, 41) |
| Alcohol use | ||||
| Never | 41% | 45% | 40% | 44% |
| ≤1 drink/day | 47% | 42% | 47% | 43% |
| >1 drinks/day | 13% | 13% | 13% | 13% |
| Number of healthy lifestyle factors | ||||
| 1 | 11% | 15% | 12% | 15% |
| 2 | 29% | 34% | 27% | 34% |
| 3 | 33% | 29% | 31% | 29% |
| 4 | 20% | 17% | 22% | 17% |
| 5 | 7% | 5% | 8% | 6% |
| Anti-hypertensive medication use | 26% | 38% | 22% | 37% |
| Cholesterol-lowering medication | 9% | 10% | 7% | 9% |
| Diabetes | 4% | 10% | 3% | 10% |
| Family history of early MI | 18% | 22% | 18% | 22% |
| Systolic Blood pressure (mmHg) | 128 (117, 140) | 134 (122, 148) | 123 (114, 135) | 133 (122, 148) |
| Total cholesterol (mg/dL) | 226 (201, 257) | 225 (198, 251) | 225 (201, 257) | 225 (198, 251) |
| HDL (mg/dL) | 54 (45, 66) | 49 (40, 60) | 55 (46, 67) | 49 (40, 60) |
| hsCRP (mg/L) | 2.3 (1.0, 4.9) | 2.9 (1.3, 5.9) | 2.3 (1.0, 5.1) | 2.9 (1.4, 5.8) |
| HbA1c % (if diabetic) | 6.9 (6.2, 7.7) | 7.5 (6.6, 9.0) | 6.9 (6.0, 7.7) | 7.5 (6.6, 8.9) |
*
median (25th percentile, 75th percentile) for continuous variables, percent for categorical
¶
Using the sampling weights from the case-cohort design