Xiao T, et al. - A cross-sectional study of patients with mild and moderate Chronic obstructive pulmonary disease (COPD) was conducted regarding their pain problems. Researchers identified that pain was common in these patients in the community settings of Shanghai, China. There appeared significant correlation of severity of COPD and COPD assessment test (CAT) score with the prevalence of pain. They suggested developing intervention measures to improve pain problems for COPD patients.