0 years | 5 years | 10 years | 15 years | 20 years | |
---|---|---|---|---|---|
Severe COPD | 92 | 74 | 54 | 36 | 8 |
Moderate COPD | 392 | 339 | 290 | 219 | 48 |
Mild COPD | 439 | 398 | 359 | 313 | 62 |
Respiratory symptoms only | 892 | 812 | 761 | 674 | 99 |
Restrictive lung disease | 511 | 465 | 406 | 328 | 75 |
No lung disease | 3216 | 3032 | 2911 | 2627 | 476 |
Total | 5542 | 5120 | 4781 | 4197 | 768 |