Relationship between iodine nutritional status and low handgrip strength in a Northwestern Chinese cohort: construction of a predictive nomogram model (opens in new tab)

BackgroundGrip strength is a key marker for sarcopenia screening, yet the influence of iodine nutritional status on low grip strength (LGS) remains poorly understood.MethodsThis cross-sectional study analyzed 810 community-dwelling adults in Lanzhou, China, randomly assigned to training (n = 568) and validation (n = 242) cohorts. Logistic regression analyses identified factors associated with LGS. A nomogram integrating urinary iodine concentration (UIC), systolic blood pressure (SP), and rou...