Abstract: Objective To evaluate the nutritional status of outpatients with chronic obstructive pulmonary disease and analyze its influencing factors. Methods Outpatients with chronic obstructive pulmonary disease from the People's Hospital of Tunchang County and the Third People's Hospital of Haikou from January 2017 to December 2021 were selected to evaluate the nutritional status by using the mini-nutritional assessment （MNA）. The basic data of patients including gender, age, education level, living style, physical activity, eating behavior, medical treatment method, course of disease, the severity of disease, and combined underlying diseases were collected. Multivariate Logistic regression analysis method was used to analyze the influencing factors of nutritional status in patients with chronic obstructive pulmonary disease. Results A total of 997 outpatients with chronic obstructive pulmonary disease were included, including 582 patients （58.38%） with normal nutrition, 305 patients （30.59%） with malnutrition risk, and 110 patients （11.03%） with malnutrition. Multivariate Logistic regression analysis showed that age （OR=2.712）, living style （OR=0.209）, physical activity （OR=0.481）, eating behavior （OR=0.693）, course of disease （OR=2.949）, the severity of disease （OR=1.508）, combined underlying disease （OR=2.841） were the influencing factors of malnutrition in outpatients with chronic obstructive pulmonary disease. Conclusions The nutritional status of outpatients with chronic obstructive pulmonary disease is poor, which is affected by individual age, illness, living habits, and other factors. Attention should be paid to high-risk groups of malnutrition, and good living habits should be actively established to improve the nutritional status and quality of life of patients.

Key words: Chronic obstructive pulmonary disease, Mini-nutritional assessment, Malnutrition, Influencing factor