Characteristics of the 749 participants
| Variable | ECRHS I | ECRHS II | ||
|---|---|---|---|---|
| *For this count, n = 1498 alleles. | ||||
| Centre | ||||
| Grenoble, % | 39.5 | – | ||
| Montpellier, % | 18.7 | – | ||
| Paris, % | 41.8 | – | ||
| Sex, men % | 49.7 | – | ||
| Age, years | 36.7 (7.1) | 45.1 (7.2) | ||
| Smoking status | ||||
| Never smokers, % | 43.5 | 40.0 | ||
| Ex-smokers, % | 24.8 | 31.7 | ||
| Moderate smokers, % | 19.4 | 19.1 | ||
| Heavy smokers, % | 12.3 | 9.2 | ||
| Pack years | 8.4 (12.8) | 10.3 (15.4) | ||
| BMI | ||||
| Underweight, % | 17.0 | 11.9 | ||
| Normal, % | 62.2 | 56.2 | ||
| Overweight, % | 18.0 | 24.7 | ||
| Obese, % | 2.8 | 7.2 | ||
| FEV1, l/s | 3.7 (0.8) | 3.4 (0.8) | ||
| FEV1%predicted | 105.7 (13.5) | 105.0 (14.5) | ||
| FEV1/FVC | 84.6 (7.5) | 83.0 (7.4) | ||
| Allelic* distribution | ||||
| Class L, % | 6.8 | – | ||
| Class M, % | 55.1 | – | ||
| Class S, % | 38.1 | – | ||
| Genotypic distribution | ||||
| L/L, % | 0.7 | – | ||
| L/M, % | 7.2 | – | ||
| L/S, % | 5.1 | – | ||
| M/M, % | 30.6 | – | ||
| M/S, % | 41.9 | – | ||
| S/S, % | 14.5 | – | ||