Table 5. Shift of the COPD subject by GOLD revised 2011.
| Prospective enrollment | Subject group (n, %) |
Total [n, %] | P value | |||
|---|---|---|---|---|---|---|
| GOLD A | GOLD B | GOLD C | GOLD D | |||
| GOLD A | 102 (61.5) | 40 (24.1) | 17 (10.2) | 7 (4.2) | 166 [100] | 0.003 |
| GOLD B | 49 (13.3) | 238 (64.7) | 8 (2.2) | 73 (19.8) | 368 [100] | |
| GOLD C | 10 (25.6) | 3 (7.7) | 15 (38.5) | 11 (28.2) | 39 [100] | |
| GOLD D | 10 (2.9) | 41 (11.9) | 24 (6.9) | 270 (78.3) | 345 [100] | |
| Total | 171(18.6) | 322 (35.1) | 64 (7.0) | 361 (39.3) | 918 [100] | |
Bowker test. Withdrawals are 196. COPD, chronic obstructive pulmonary disease; GOLD, Global Initiative for Chronic Obstructive Lung Disease.