Table 1.
Summary statistics of the 6,576 NHW subjects analyzed in this study.GOLD −1 = Preserved ratio, impaired spirometry, (FEV1/FVC ≥ 0.7, FEV1% predicted < 80%); GOLD 0 = Normal spirometry; GOLD 1 = FEV1/FVC < 70%, FEV1 ≥ 80% predicted; GOLD 2 = FEV1/FVC < 70%, 50% < FEV1% predicted < 80%; GOLD 3 = FEV1/FVC < 70%, 30% < FEV1% predicted < 50%; GOLD 4 = FEV1/FVC < 70%, FEV1 ≤ 30% predicted.
| Non-COPD | COPD | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| GOLD Stage | −1 | 0 | Total Non-COPD | 1 | 2 | 3 | 4 | Total COPD | |
| # of Subjects | 692 | 2,509 | 3,201 | 595 | 1,407 | 892 | 481 | 3,375 | |
| Ave. Age | 60.1 | 60.0 | 59.7 | 63.1 | 64.2 | 65.2 | 64.8 | 64.4 | |
| # of Males | 303 | 1,240 | 1,543 | 349 | 755 | 513 | 281 | 1,898 | |
| Sex (% Male) | 44% | 49% | 48% | 59% | 54% | 58% | 58% | 56% | |
| Ave. Pack-Years | 46.5 | 38.0 | 39.8 | 46.3 | 54.0 | 58.0 | 60.4 | 54.5 | |