Validation of Falls Efficacy Scale Instrument in Romanian Adults with Type 2 Diabetes Mellitus: A Monocenter, Prospective Study

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Background: Fear of falling is common in older adults with type 2 diabetes mellitus (T2DM), particularly in those with balance and mobility impairment. The Falls Efficacy Scale—International (FES-I) is widely used to quantify concern about falling but requires local validation. We aimed to validate the Romanian version of the FES-I in older adults with T2DM. Methods: In this validation study, 124 consecutive outpatients with T2DM aged > 60 years completed the Romanian FES-I at baseline (v1) and at one-month follow-up (v2). Internal consistency was assessed with Cronbach’s alpha and item–total correlations. Test–retest reliability was evaluated using intraclass correlation coefficient (ICC) and the Bland–Altman agreement. Construct validity was examined by correlations with the Fear-of-Falling Questionnaire—Revised (FFQ-R), Berg Balance Scale (BBS), Timed Up and Go (TUG), and single-leg stance (SLS). Discriminative performance was assessed via ROC analyses. Results: Mean FES-I scores were 30.8 ± 11.4 (v1) and 31.1 ± 11.6 (v2). Internal consistency (Cronbach’s alpha 0.945–0.947) and test–retest reliability (ICC 0.972; 95% CI 0.956–0.983) were excellent, with minimal bias. FES-I correlated strongly with FFQ-R (rho = 0.787) and moderately with function (BBS rho = −0.631; TUG rho = 0.547; SLS rho = −0.498; all p < 0.001). Discrimination was good for BBS (AUROC = 0.779) and TUG (AUROC = 0.800). Conclusions: The Romanian FES-I demonstrates excellent reliability and good validity in older adults with T2DM, with low measurement error and clinically interpretable change thresholds. It can be used for fear-of-falling quantification in routine care and research, including longitudinal monitoring and evaluation of interventions in Romanian patients with diabetes.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.