Table 2.
Distribution of Participants in Lung Function Quintiles at Screening and Baseline
| FEV1 | Screening | |||||
|---|---|---|---|---|---|---|
| Q1: <53.5% (N=3296) | Q2: ≥53.5 to <57.5% (N=3297) | Q3: ≥57.5 to <61.6% (N=3297) | Q4: ≥61.6 to <65.6% (N=3297) | Q5: ≥65.6% (N=3296) | ||
| BASELINE | Q1: <52.3% (N=3296) | 1844 | 858 | 350 | 178 | 65 |
| Q2: ≥52.3 to <56.7% (N=3297) | 941 | 1167 | 741 | 311 | 137 | |
| Q3: ≥56.7 to <61.1% (N=3297) | 319 | 808 | 1109 | 732 | 329 | |
| Q4: ≥61.1 to <66.0% (N=3297) | 119 | 308 | 743 | 1235 | 892 | |
| Q5: ≥66.0% (N=3297) | 73 | 156 | 354 | 841 | 1873 | |
| FVC | Q1: <67.4% (N=3296) | Q2: ≥67.4 to <73.6% (N=3297) | Q3: ≥73.6 to <79.5% (N=3297) | Q4: ≥79.5 to <87.6% (N=3297) | Q5: ≥87.6% (N=3297) | |
| Q1: <52.3% (N=3296) | 2173 | 702 | 264 | 113 | 44 | |
| Q2: ≥65.9 to <72.6% (N=3297) | 798 | 1412 | 739 | 266 | 82 | |
| Q3: ≥72.6 to <78.8% (N=3297) | 224 | 856 | 1357 | 690 | 170 | |
| Q4: ≥78.8 to <87.2% (N=3297) | 68 | 272 | 773 | 1548 | 635 | |
| Q5: ≥87.2% (N=3297) | 33 | 55 | 164 | 680 | 2365 | |
| FEV1/FVC | Q1: <0.51 (N=3296) | Q2: ≥0.51 to <0.57 (N=3297) | Q3: ≥0.57 to <0.62 (N=3297) | Q4: ≥0.62 to <0.66 (N=3296) | Q5: ≥0.66 (N=3297) | |
| Q1: <0.51 (N=3296) | 2480 | 610 | 122 | 37 | 33 | |
| Q2: ≥0.51 to <0.57 (N=3297) | 609 | 1668 | 720 | 196 | 90 | |
| Q3: ≥0.57 to <0.62 (N=3297) | 112 | 718 | 1428 | 757 | 269 | |
| Q4: ≥0.62 to <0.66 (N=3296) | 52 | 181 | 716 | 1407 | 955 | |
| Q5: ≥0.66 (N=3297) | 33 | 103 | 296 | 888 | 1935 | |
Abbreviations: FEV1, forced expiratory volume in one second; FVC, forced vital capacity.