Table 1.
Characteristics of the 858 Men Participating in 2,410 Visits in the Context of the Normative Aging Study, 1995–2011
| Statistics | |
|---|---|
| Participant characteristics at first visit Age, mean ± SD, yr | 69.9 ± 7.2 |
| Race, n (%) | |
| Black | 18 (2.1) |
| White | 840 (97.9) |
| Height, mean ± SD, cm | 173.6 ± 6.6 |
| Weight, mean ± SD, kg | 84.6 ± 13.7 |
| Education, n (%) | |
| <12 yr | 41 (4.8) |
| 12 yr | 213 (24.8) |
| 13–15 yr | 265 (30.9) |
| >15 yr | 339 (39.5) |
| Smoking status, n (%) | |
| Never | 241 (28.1) |
| Current | 46 (5.4) |
| Former | 571 (66.5) |
| Pack-years,* mean ± SD | 22.6 ± 28.6 |
| Asthma, n (%) | 50 (5.8) |
| Chronic bronchitis, n (%) | 61 (7.1) |
| Emphysema, n (%) | 29 (3.4) |
| Methacholine responsiveness, n (%) | 87 (10.1) |
| Missing | 138 (16.0) |
| Corticosteroids, n (%) | 30 (3.5) |
| Sympathomimetic (α, β), n (%) | 83 (9.7) |
| Anticholinergic, n (%) | 11 (1.3) |
| Coronary heart disease, n (%) | 237 (27.6) |
| Stroke, n (%) | 46 (5.4) |
| Hypertension, n (%) | 595 (69.3) |
| Diabetes, n (%) | 88 (10.3) |
| FVC, mean ± SD, L | 3.4 ± 0.7 |
| FEV1, mean ± SD, L | 2.5 ± 0.6 |
| Visit characteristics | |
| Season, n (%) | |
| Spring (March–May) | 590 (24.5) |
| Summer (June–August) | 637 (26.4) |
| Fall (September–November) | 716 (29.7) |
| Winter (December–February) | 467 (19.4) |
*
Among current or former smokers.