Table 1.
Summary of analyzed COPDGene subjects by former (n = 286) and current (n = 229) smoking status. Values represent mean (SD)
| Former Smokers (n = 286) | Current Smokers (n = 229) | P-value | |
|---|---|---|---|
| Race (% NHW) | 86% | 57% | <0.01 |
| Gender (% female) | 45% | 49% | 0.4 |
| Age | 69 (8.1) | 61 (7.6) | <0.01 |
| Pack-Years Smoked | 44 (23) | 46 (21) | 0.5 |
| FEV1 percent predicted | 73 (29) | 79 (24) | 0.02 |
| COPD cases | 41% | 48% | <0.01 |
| Neutrophil percentage | 61 (11) | 58 (11) | <0.01 |
| Lymphocyte percentage | 28 (11) | 31 (9.9) | <0.01 |
| Eosinophil percentage | 2.6 (2.1) | 2.7 (3.0) | 0.9 |
| Monocyte percentage | 8.5(2.5) | 7.6(2.2) | <0.01 |
| Basophil percentage | 0.59(0.55) | 0.59(0.65) | 0.9 |