From: Pre- and post-bronchodilator lung function as predictors of mortality in the Lung Health Study
Year 1 | Post-Bronchodilator | |||||
---|---|---|---|---|---|---|
Pre-Bronchodilator | Stage 3 or 4* | Stage 2 | Stage 1 | Restricted | Normal | Total |
Stage 3 or 4* | 17 | 50 | 0 | 0 | 0 | 67 |
Stage 2 | 1 | 2442 | 578 | 76 | 335 | 3432 |
Stage 1 | 0 | 28 | 959 | 0 | 367 | 1354 |
Restricted | 1 | 10 | 0 | 44 | 14 | 69 |
Normal | 0 | 10 | 28 | 5 | 342 | 385 |
Total | 19 | 2540 | 1565 | 125 | 1058 | 5307 |
Year 5 | Â | Â | Â | Â | Â | Â |
 |  | Post-Bronchodilator |  |  | ||
Pre-Bronchodilator | Stage 3 or 4* | Stage 2 | Stage 1 | Restricted | Normal | Total |
Stage 3 or 4* | 172 | 168 | 0 | 1 | 0 | 341 |
Stage 2 | 10 | 2823 | 482 | 67 | 205 | 3587 |
Stage 1 | 0 | 27 | 748 | 0 | 220 | 995 |
Restricted | 1 | 18 | 1 | 56 | 16 | 92 |
Normal | 0 | 12 | 11 | 2 | 280 | 305 |
Total | 183 | 3048 | 1242 | 126 | 721 | 5320 |