Table 1.
Baseline characteristics of participants of the Harvard Alumni Health Study, Boston, (USA).
| Total floors per week |
|||||
|---|---|---|---|---|---|
| <10 |
10–19 |
20–34 |
≥35 |
Total |
|
| (n = 2557) | (n = 1890) | (n = 1527) | (n = 2900) | (n = 8874) | |
| Age, years | 67 (62–74) | 64 (60–71) | 64 (60–70) | 64 (60–70) | 65 (60–71) |
| Cigarette habit | |||||
| Current smokers (%) | 8.6 | 9.1 | 7.5 | 7.7 | 8.2 |
| Alcohol intake | |||||
| Never (%) | 31.7 | 26.2 | 23.4 | 23.8 | 26.5 |
| 1–3 drinks/wk (%) | 18.2 | 19.7 | 18.8 | 18.8 | 18.8 |
| 4–6 drinks/wk (%) | 11.7 | 13.6 | 13.4 | 13.9 | 13.2 |
| ≥7 drinks/wk (%) | 38.4 | 40.4 | 44.4 | 43.5 | 41.5 |
| BMI, kg/m2 | 24.4 (22.9–26.5) | 24.6 (22.9–26.6) | 24.4 (22.9–26.4) | 24.4 (22.7–26.1) | 24.4 (22.8–26.3) |
| Physician diagnosed hypertension Yes (%) |
29.1 | 28.6 | 26.6 | 25.6 | 27.4 |
| Physician diagnosed diabetes Yes (%) |
5.5 | 4.6 | 4.5 | 3.7 | 4.6 |
| Physician diagnosed high cholesterol Yes (%) |
19.1 | 19.4 | 19.5 | 17.5 | 18.7 |
| Blocks walked | 6 (2−12) | 6 (2–12) | 7 (4–12) | 11 (4–20) | 8 (3–15) |
| Physical activity (MET-hr/wk in sports/recreation) | 12 (0−32) | 13 (0–29) | 13 (0–29) | 14 (0–32) | 13 (0−31) |
Continuous variables (age, BMI, blocks walked and physical activity) are shown as median and interquartile range (IQR); BMI: Body Mass Index (kg/m2); MI: Myocardial Infarction; METs: Metabolic equivalents.