Predictors of Quality of Life Among COPD Patients in South Korea

Monday, July 11, 2011

Young-Ju Jee, MS
School of Nursing, Pusan National Univ., Korea, Pusan, South Korea
Haejung Lee, PhD, RN
College of Nursing, Pusan National University, Yangsan, South Korea

Learning Objective 1: The learner will be able to know predictors of quality of life among COPD patients. When developing nursing intervention will be utilized as a basis.

Learning Objective 2: The learner will be able to improving quality of life through the intervention of predictors

Purpose of the study: The Purpose of this study was to analysis the factors that influence the quality of life (QOL) in COPD patients and to provide useful health care strategies in improving quality of life in COPD patients.

Method: Patients diagnosed with COPD (N=249) were recruited from 3 university hospitals and 2 regional hospitals in South Korea. The data were collected from March 1 to November 30, 2010. The research instruments utilized in this study were Short Form 36, Modified Medical Research Council, COPD and Asthma Sleep Impact Scale, COPD Self-Efficacy Scale, International Physical Activity Questionnaire, The Satisfaction with Life Scale, Personal Resource Questionnaire 2000. The levels of education and satisfaction of household total income and job status were also asked using questionnaires. Data were analyzed with descriptive statistics, Pearson correlation and simultaneous multiple regression using SPSS WIN 15.0 program.

Results: The mean QOL of the participants in this study was 66.67, which is slightly higher than the middle levels of QOL. The levels of QOL of the patients with COPD were significantly related to levels of education, satisfaction of household total income, job status, perceived difficulties in respiration, sleep problem, self-efficacy, physical activity, satisfaction of life, and social support. Significant predictors of QOL were self-efficacy (β= .34), perceived difficulties in respiration (β=- .22), satisfaction of household total income (β= .14), and explained 44% of variance in QOL.

Conclusion: Based on the findings of the study, we suggest that strategies to enhance self-efficacy should be included in the pulmonary rehabilitation program, especially for the patients who perceive higher difficulties in respiration. Further research to explore potential strategies in enhancing self-efficacy and QOL is warranted.