Characteristics of individuals by presence of facial wrinkling
| Unwrinkled†(n = 124) | Wrinkled‡(n = 25) | p value | |
|---|---|---|---|
| Figures are mean (SD) or number (%) as indicated. COPD and emphysema are as defined in the legend for table 1. | |||
| †Unwrinkled: Daniell scores of I, II or III. | |||
| ‡Wrinkled: Daniell score ⩾IV. | |||
| Male, n (%) | 85 (68.5) | 17 (68.0) | NS |
| Mean (SD) age (years) | 54.9 (8.1) | 60.4 (7.1) | <0.01 |
| Mean (SD) pack years smoked | 30.3 (24.8) | 53.5 (29.3) | <0.001 |
| Mean (SD) FEV1 (% predicted) | 78.7 (33.9) | 54.8 (26.6) | <0.01 |
| COPD, n (%) | 47 (37.9) | 21 (84.0) | <0.001 |
| Emphysema, n (%) | 52 (41.9) | 17 (68.0) | <0.05 |