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目的研究慢性阻塞性肺疾病(COPD)患者体重指数与肺功能的关系。方法收集2009年6月-2011年6月就诊于新疆维吾尔自治区人民医院内科的COPD稳定期患者152例,按体重指数(BMI)分为2组,BMI<21kg/2为低体重组,BMI 23～25kg/m2为正常体重组,每组76例。比较两组肺功能障碍程度和呼吸困难程度的发生率,分析BMI与肺功能的关系。结果在低体重组及正常体重组患者中轻、中、重度呼吸困难的发生率有差异(P<0.05),低体重组出现呼吸困难主要以重度呼吸困难为主,而正常体重组则以轻度、中度呼吸困难为主。COPD低体重组的FEV1%、FEV1/FVC、MVV明显低于正常体重组。结论低体重指数的COPD患者肺功能减低,改善COPD患者的营养状况有利于COPD患者改善肺功能,提高生活质量。
Objective To investigate the relationship between body mass index and pulmonary function in patients with chronic obstructive pulmonary disease (COPD). Methods Fifty-two patients with stable COPD who were admitted to the People’s Hospital of Xinjiang Uygur Autonomous Region from June 2009 to June 2011 were divided into two groups according to their body mass index (BMI). The BMI <21kg / 2 was lower body weight and BMI 23 ~ 25kg / m2 for the normal weight group, 76 cases in each group. The incidence of pulmonary dysfunction and degree of dyspnea were compared between the two groups to analyze the relationship between BMI and pulmonary function. Results The prevalence of mild, moderate and severe dyspnea was significantly different between low-weight group and normal-weight group (P <0.05). Dyspnea occurred mainly in severe dyspnea with dyspnea, while in normal weight group, Degree, moderate dyspnea-based. The FEV1%, FEV1 / FVC and MVV in COPD low-weight group were significantly lower than those in normal weight group. Conclusion Low body mass index COPD patients with decreased lung function, improve the nutritional status of patients with COPD is conducive to improving lung function in patients with COPD, improve quality of life.