Age at spirometry (years) |
<20 | 19 559 (12) | 98 (3) | 177 (6) | 7 (2) | 1405 (18) | 21 246 (12) |
20–29 | 61 923 (38) | 557 (16) | 474 (16) | 22 (6) | 2079 (27) | 65 055 (37) |
30–39 | 37 744 (23) | 714 (20) | 378 (13) | 34 (9) | 1264 (16) | 40 134 (23) |
⩾40 | 43 240 (27) | 2139 (61) | 1926 (65) | 323 (84) | 2934 (38) | 50 562 (29) |
| | | | | | |
Smoking status | | | | | | |
Never smoked | 82 462 (51) | 964 (27) | 725 (25) | 65 (17) | 3373 (44) | 87 589 (49) |
Former smoker | 20 433 (13) | 528 (15) | 350 (12) | 65 (17) | 808 (11) | 22 184 (13) |
Current smoker | 59 571 (37) | 2016 (57) | 1880 (64) | 256 (66) | 3501 (46) | 67 224 (45) |
| | | | | | |
Total | 162 466 (92) | 3508 (2) | 2955 (2) | 386 (<1) | 7682 (4) | 176 997 (100) |