RESULTS: Two hundred ninety five COPD patients were recruited into community-based PR program. 220(75%) COPD patients completed the eight weeks PR program. Twenty-five percent of COPD patients did not complete PR program. Non-completers had lower exercise capacity, higher dyspnea and higher level of anxiety compared to completers. Logistic regression analysis showed that impaired quality of life (95% CI) 1:07 (1:04 - 1:09), p < 0.001 and high load of anxiety symptoms were less likely to complete the PR program with odds ratio (95% CI) 0.95 (0.90- 0.98), p < 0.003.