Background: Between 34.5% and 69% of the patients with lung cancer are at risk of malnutrition. Quality of life (QoL) and physical status assessment provides valuable prognostic data on lung cancer patients. Malnutrition is a prognostic parameter for clinical outcome. Therefore, the identification of significant factors affecting the clinical outcome and QoL is important. The purpose of this study was to evaluate the relationship between nutritional status and outcome, i.e., overall survival, time to tumor progression, and QoL, in lung cancer patients.
Materials And Methods: We performed a systematic search of the Pubmed/MEDLINE databases per the Cochrane guidelines to conduct a meta-analysis consistent with the PRISMA statement, using the following keywords: "lung cancer," "malnutrition," "nutrition," "quality of life," "well-being," "health-related quality of life," and "outcome." Out of the 96 papers identified, 12 were included in our meta-analysis.
Results: Our meta-analysis shows that patients with a good nutritional status have a better QoL than malnourished patients in the following functioning domains: physical ( = 1.22, 95% CI = 1.19 to 1.46, < 0.001), role ( = 1.45, 95% CI = 1.31 to 1.59, < 0.001), emotional ( = 1.10, 95% CI = 0.97 to 1.24, < 0.001), cognitive ( = 0.91, 95% CI = 0.76 to 1.06, < 0.001), and social ( = 1.41, 95% CI = 1.27 to 1.56, < 0.001). The risk of death was significantly higher in malnourished than in well-nourished patients ( = 1.53, 95% CI = 1.25 to 1.86, < 0.001). Nutritional status was significantly associated with survival, indicating that patients with a poorer nutritional status are at more risk of relapse.
Conclusions: Nutritional status is a significant clinical and prognostic parameter in the assessment of lung cancer treatment. Malnutrition is associated with poorer outcome in terms of overall survival, time to tumor progression, and QoL in patients treated for lung cancer.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8539241 | PMC |
| http://dx.doi.org/10.3390/nu13103332 | DOI Listing |
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