To investigate the prevalence of restless legs syndrome (RLS) in chronic obstructive pulmonary disease (COPD) patients. The symptoms and severity of RLS was evaluated by the International Restless Legs Syndrome Group Study (IRLSSG). Mann–Whitney U test, Chi-square test and Spearman correlation coefficient were used to analyze the data. Out of the 109 COPD patients, 18.3% were diagnosed with RLS. There is no statistically significant difference between RLS and non-RLS groups except the mean age (P value > 0.05). Restless legs syndrome is relatively common in patients with COPD.

中文翻译：

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慢性阻塞性肺疾病（COPD）患者不安腿综合征的患病率

目的调查慢性阻塞性肺疾病（COPD）患者躁动腿综合征（RLS）的患病率。RLS的症状和严重程度由国际不安腿综合征集团研究（IRLSSG）进行了评估。使用Mann–Whitney U检验，卡方检验和Spearman相关系数来分析数据。在109名COPD患者中，有18.3％被诊断患有RLS。除平均年龄外，RLS组和非RLS组之间无统计学差异（P值> 0.05）。不安定腿综合征在COPD患者中相对常见。