Sample size for means below the respective α1-antitrypsin (α1-AT) threshold
| α1-AT threshold | ||||||
| α1-AT<110 | α1-AT<120 | α1-AT<130 | α1-AT<140 | α1-AT<150 | α1-AT<160 | |
| FEV1 of pred | 51 (3.0) | 87 (5.1) | 176 (10.4) | 358 (21.2) | 680 (40.2) | 1042 (61.6) |
| MEF25 % pred | 48 (2.9) | 83 (5.0) | 171 (10.2) | 351 (21.0) | 668 (40.0) | 1024 (61.4) |
| MEF50 % pred | 51 (3.0) | 87 (5.1) | 176 (10.4) | 358 (21.2) | 680 (40.2) | 1042 (61.6) |
Data are presented as n (%)
FEV1: forced expiratory volume in one second
MEF25 and MEF50: maximum expiratory flow at 25% and 50% of vital capacity, respectively