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  • Title: Dietary counselling and food fortification in stable COPD: a randomised trial.
    Author: Weekes CE, Emery PW, Elia M.
    Journal: Thorax; 2009 Apr; 64(4):326-31. PubMed ID: 19074931.
    Abstract:
    BACKGROUND: Malnutrition in chronic obstructive pulmonary disease (COPD) is associated with a poor prognosis, yet evidence to support the role of dietary counselling and food fortification is lacking. A study was undertaken to assess the impact of dietary counselling and food fortification on outcome in outpatients with COPD who are at risk of malnutrition. METHODS: A randomised controlled unblinded trial was performed in 59 outpatients with COPD (6 months intervention and 6 months follow-up). The intervention group received dietary counselling and advice on food fortification and the controls received a dietary advice leaflet. Outcome measures were nutritional status, respiratory and skeletal muscle strength, respiratory function, perceived dyspnoea, activities of daily living (ADL) and quality of life. RESULTS: The intervention group consumed more energy (difference 194 kcal/day; p = 0.02) and protein (difference 11.8 g/day; p<0.001) than controls. The intervention group gained weight during the intervention period and maintained weight during follow-up; the controls lost weight throughout the study. Significant differences were observed between the groups in St George's Respiratory Questionnaire total score (difference 10.1; p = 0.02), Short Form-36 health change score (difference 19.2; p = 0.029) and Medical Research Council dyspnoea score (difference 1.0; p = 0.03); the difference in ADL score approached statistical significance (difference 1.5; p = 0.06). No differences were observed between groups in respiratory function or skeletal and respiratory muscle strength. Improvements in some variables persisted for 6 months beyond the intervention period. CONCLUSION: Dietary counselling and food fortification resulted in weight gain and improvements in outcome in nutritionally at-risk outpatients with COPD, both during and beyond the intervention period.
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