Journal of clinical epidemiology
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Multicenter Study
Five comorbidities reflected the health status in patients with chronic obstructive pulmonary disease: the newly developed COMCOLD index.
This study aimed to identify those comorbidities with greatest impact on patient-reported health status in patients with chronic obstructive pulmonary disease (COPD) and to develop a comorbidity index that reflects their combined impact. ⋯ The COMCOLD index reflects the combined impact of five important comorbidities from patients' perspective and complements existing comorbidity indices that predict death. It may help clinicians focus on comorbidities affecting patients' health status the most.