Obesity, Dietary inflammation, and Frailty among Okies-Adults: Evidence from the National Health and Nutrition Examination Survey

摘要

Knowledge related to the relationship between obesity and frailty is limited. This study aimed to investigate associations between obesity, dietary inflammation, and frailty among older adults. Study data came from National Health and Nutrition Examination Survey (2007-2014) examinations of adults age > 60 years (n = 7182). Dietary inflammatory potential was determined using the Dietary Inflammatory Index (Dll) derived from 24-h dietary recall. We analyzed independent and joint associations of obesity and Dll with frailty to evaluate interaction. Multivariate logistic regression revealed that both obesity (Odds Ratio [OR] = 2.24, 95% CI: 1.68, 2.99) and moderately pro-inflammatory Dll (OR = 1.68, 95% CI: 1.10, 2.58) were independently associated with greater frailty prevalence. A negative multiplicative interaction between obesity and highest pro-inflammatory diet also was found (adjusted odds in non-obese and obese were 2.07 and 2.37, respectively; p = 0.046). Results indicate the importance of considering obesity and dietary inflammatory potential when screening for frailty or developing treatments.