Demographics of the 20,296 studied subjects and the proportion with diabetes mellitus, hypertension and cardiovascular disease
| Subjects# | Diabetes mellitus % | Hypertension % | Cardiovascular disease % | |
| Age group yrs | ||||
| 45–49 | 4096 (20.2) | 8.1±0.4 | 24.5±0.7 | 9.7±0.5 |
| 50–54 | 3978 (19.6) | 10.6±0.5 | 32.0±0.7 | 11.9±0.5 |
| 55–59 | 3751 (18.5) | 12.9±0.5 | 38.1±0.8 | 14.8±0.6 |
| 60–64 | 3516 (17.3) | 16.5±0.6 | 46.4±0.8 | 17.0±0.6 |
| 65–71 | 437 (2.2) | 16.2±1.8 | 49.9±2.4 | 16.0±1.7 |
| 72–75 | 1680 (8.3) | 13.9±0.8 | 51.3±1.2 | 17.3±0.9 |
| 76–79 | 1168 (5.8) | 15.9±1.1 | 58.0±1.4 | 21.1±1.2 |
| >80 | 1670 (8.2) | 15.4±0.9 | 62.4±1.2 | 27.4±1.1 |
| Sex | ||||
| Female | 11258 (55.5) | 12.0±0.3 | 40.8±0.5 | 13.1±0.3 |
| Male | 9038 (44.5) | 13.5±0.4 | 39.2±0.5 | 17.9±0.4 |
| Race | ||||
| White | 16040 (79.0) | 10.7±0.2 | 35.7±0.4 | 16.1±0.3 |
| Black | 4256 (21.0) | 20.1±0.6 | 56.6±0.8 | 12.0±0.5 |
| Smoking status | ||||
| Current | 8290 (40.9) | 13.1±0.4 | 42.6±0.5 | 13.1±0.4 |
| Former | 7052 (34.8) | 13.2±0.4 | 41.2±0.6 | 18.2±0.5 |
| Never | 4954 (24.4) | 11.1±0.4 | 34.3±0.7 | 14.6±0.5 |
| Education yrs | ||||
| <12 | 4996 (24.6) | 18.9±0.6 | 50.8±0.7 | 19.9±0.6 |
| 12 | 6372 (31.4) | 11.9±0.4 | 39.0±0.6 | 14.8±0.4 |
| >12 | 8,928 (44.0) | 9.7±0.3 | 34.9±0.5 | 12.9±0.4 |
| Body mass index | ||||
| <20 | 811 (4.0) | 5.1±0.8 | 30.6±1.6 | 14.3±1.2 |
| 20–24 | 6288 (31.0) | 6.3±0.3 | 30.1±0.6 | 13.4±0.4 |
| 25–29 | 8100 (39.9) | 11.7±0.4 | 39.9±0.5 | 15.4±0.4 |
| ≥30 | 5097 (25.1) | 23.2±0.6 | 54.3±0.7 | 17.3±0.5 |
| GOLD category | ||||
| 3 or 4¶ | 530 (2.6) | 14.5±1.5 | 51.1±2.2 | 22.1±1.8 |
| 2+ | 2076 (10.2) | 12.6±0.7 | 43.8±1.1 | 19.4±0.9 |
| 1§ | 2892 (14.3) | 10.1±0.6 | 40.4±0.9 | 18.7±0.7 |
| 0ƒ | 4511 (22.2) | 14.9±0.5 | 41.6±0.7 | 19.7±0.6 |
| Restricted## | 2868 (14.1) | 19.0±0.7 | 47.7±0.9 | 16.6±0.7 |
| Normal | 7419 (36.6) | 9.7±0.3 | 34.3±0.6 | 9.0±0.3 |
| Total | 20296 | 12.7±0.2 | 40.1±0.3 | 15.2±0.3 |
Data are presented as n (%) or mean±sem. GOLD: Global Initiative for Obstructive Lung Disease. #: subjects in the Atherosclerosis Risk in Communities Study during 1986–1989 and the Cardiovascular Health Study during 1989–1990; ¶: forced expiratory volume in one second (FEV1) or forced vital capacity (FVC) <0.70 and FEV1 <50% predicted; +: FEV1/FVC <0.70 and FEV1 ≥50 to <80% pred; §: FEV1/FVC <0.70 and FEV1 ≥80% pred; ƒ: presence of respiratory symptoms in the absence of any lung function abnormality; ##: FEV1/FVC ≥0.70 and FVC <80% pred.