Research Article
The Clinical COPD Questionnaire Correlated with BODE Index-A Cross-Sectional Study
Table 2
GOLD stages of chronic obstructive pulmonary disease (COPD), BODE index score, and BODE quartiles in the 89 COPD patients.
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FEV1 denotes forced expiratory volume in one second. †See text for details of BODE; the higher the BODE index, the greater the risk of death. ‡Quartile 1 referred to BODE score of 0 to 2, quartile 2 to 3 to 4, quartile 3 to 5 to 6, and quartile 4 to 7 to 10. |