ArticleBMC geriatrics2025
Association between age and malnutrition in oldest-old and centenarian populations.
Article in BMC geriatrics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundAs the pace of social aging accelerates, mitigating malnutrition has emerged as a pressing public health imperative. This study aimed to assess the association between age and malnutrition in Chinese oldest-old and centenarian populations.
methodsThis population-based survey investigated 1768 adults in 18 cities and counties using a standardized protocol. Face-to-face interview was conducted by a well-trained team using home-visiting method.
resultsLogistic regression analyses demonstrated a significantly inverse association between age and malnutrition. Each one-year increase in age was associated with a significantly reduced likelihood without malnutrition [model 1: odds ratio (OR) 0.91, 95%confidence interval (CI) 0.90-0.92, p < 0.001; model 2: OR 0.94, 95%CI 0.92-0.96, p < 0.001). Restricted Cubic Spline revealed a linear correlation between age and malnutrition (model 1: p-overall ≤ 0.001, p-nonlinear = 0.011; model 2: p-overall ≤ 0.001, p-nonlinear = 0.079). Subgroup analyses indicated interaction effects of cigarette smoking (p = 0.002), red meat consumption (p = 0.028), and vegetable consumption (p = 0.009) on malnutrition.
conclusionsThis study demonstrated a linear association between age and malnutrition in Chinese oldest-old populations and indicated interaction effects of cigarette smoking, red meat consumption, and vegetable consumption on malnutrition. Food consumption is related to nutritional status as a key element in age-malnutrition association. An in-depth understanding of food and nutrition in older adults could help establish evidence-based recommendations to increase survival rate.
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