Table 3. Change of disposition for COPD exacerbation during the 2 years COPD exacerbation.
| Frequency of COPD exacerbation | Prospective (n, %) |
Total | P value | |||
|---|---|---|---|---|---|---|
| 0 | 1 | 2 | ≥3 | |||
| Retrospective | 0.765 | |||||
| 0 | 585 (81.4) | 96 (13.4) | 25 (3.5) | 12 (1.7) | 718 [100] | |
| 1 | 161 (66.8) | 50 (20.7) | 18 (7.5) | 12 (5.0) | 241 [100] | |
| 2 | 28 (38.4) | 17 (23.3) | 9 (12.3) | 19 (26.0) | 73 [100] | |
| ≥3 | 25 (30.5) | 16 (19.5) | 11 (13.4) | 30 (36.6) | 82 [100] | |
| Total | 799 (71.7) | 179 (16.1) | 63 (5.7) | 73 (6.6) | 1,114 [100] | |
Bowker test. COPD, chronic obstructive pulmonary disease.