Du Jing, Cui Yan, Yang Ling, Sun Yuhui, Tian Xi, Hu Xiaoting, Liu Huaqing
School of Public Health, Bengbu Medical University, Bengbu, People's Republic of China.
Br J Nutr. 2024 Nov 28;132(10):1377-1385. doi: 10.1017/S000711452400268X. Epub 2024 Nov 4.
To explore the associations between nutrition literacy (NL) and possible sarcopenia in older Chinese adults. A cross-sectional study was conducted. NL was assessed using a twelve-item short-form NL scale. Possible sarcopenia was identified using SARC-CALF. Logistic regression was used to calculate OR and 95 % CI for NL and the incidence of possible sarcopenia. A total of 1338 older individuals, aged 71·41 (sd 6·84) years, were enrolled in this study. After confounders were adjusted for, older adults in the upper quartile of NL were found to be 52 % less likely to have possible sarcopenia than those in the lower quartile of NL (OR = 0·48, 95 % CI: 0·29, 0·77). The associations between NL and possible sarcopenia were present only in those who lived in rural areas (OR: 0·38, 95 % CI: 0·19, 0·77), had a primary school education or less (OR: 0·21, 95 % CI: 0·09, 0·48), had a monthly income < 3000 RMB (OR: 0·39, 95 % CI: 0·22, 0·70) and had chronic diseases (OR: 0·37, 95 % CI: 0·22, 0·63). Moreover, an interaction effect was observed between having a chronic disease and junior high school education and being in the upper quartile of NL. The prevalence of possible sarcopenia in older Chinese adults is substantial, with prevalence decreasing with increasing NL. Moreover, the association between NL and possible sarcopenia varies by residence type, education level, monthly income and chronic disease experience. Targeted NL interventions are required to prevent and manage sarcopenia in older adults, particularly those with low socio-economic status and chronic diseases.
探讨中国老年人群营养知识素养（NL）与潜在肌肉减少症之间的关联。开展了一项横断面研究。使用包含12个条目的简短营养知识素养量表评估营养知识素养。使用小腿围（SARC-CALF）识别潜在肌肉减少症。采用逻辑回归计算营养知识素养的比值比（OR）和95%置信区间（CI）以及潜在肌肉减少症的发生率。本研究共纳入1338名老年人，年龄为71.41（标准差6.84）岁。在对混杂因素进行调整后，发现营养知识素养处于上四分位数的老年人发生潜在肌肉减少症的可能性比处于下四分位数的老年人低52%（OR = 0.48，95%CI：0.29，0.77）。营养知识素养与潜在肌肉减少症之间的关联仅存在于居住在农村地区（OR：0.38，95%CI：0.19，0.77）、小学及以下学历（OR：0.21，95%CI：0.09，0.48）、月收入<3000元人民币（OR：0.39，95%CI：0.22，0.70）以及患有慢性病（OR：0.37，95%CI：0.22，0.63）的人群中。此外，观察到患有慢性病与初中学历且营养知识素养处于上四分位数之间存在交互作用。中国老年人群中潜在肌肉减少症的患病率较高，且患病率随营养知识素养的提高而降低。此外，营养知识素养与潜在肌肉减少症之间的关联因居住类型、教育水平、月收入和慢性病患病经历而异。需要针对性地开展营养知识素养干预措施，以预防和管理老年人的肌肉减少症，特别是社会经济地位较低和患有慢性病的老年人。
