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  • Title: Concurrent validity of the Vestibular/Ocular Motor Screening (VOMS) tool with the Dizziness Handicap Inventory (DHI) among adolescents with vestibular symptoms/impairment following concussion.
    Author: Eagle SR, Feder A, Manderino LM, Mucha A, Holland CL, Collins MW, Kontos AP.
    Journal: Phys Ther Sport; 2022 Jan; 53():34-39. PubMed ID: 34785482.
    Abstract:
    OBJECTIVE: To determine whether the Vestibular/Ocular Motor Screening (VOMS) tool demonstrates concurrent validity with the Dizziness Handicap Inventory (DHI) in a sample of concussed athletes referred for vestibular therapy and whether DHI items were predictive of VOMS outcomes. DESIGN: Cross-sectional cohort study. SETTING: Concussion specialty/vestibular therapy clinic. METHODS: Adolescents (n = 55; 15.4 ± 1.6 years) with diagnosed sport-related concussion (SRC) with vestibular symptoms and/or impairment between October 2018-February 2020. Patients completed VOMS and DHI at initial visit. Seven individual VOMS and twenty-five DHI items, VOMS and DHI total score and three DHI sub-scales, were compared with Spearman correlations. Three backwards linear regression (LR) models were built to predict 1. VOMS vestibular symptoms, 2. VOMS ocular symptoms, and 3. near-point of convergence-distance (NPC-distance) using individual DHI items as predictors. RESULTS: Spearman correlations (p) identified DHI items with moderate to strong associations for VOMS items. DHI sub-scales demonstrated moderate-to-strong correlations with VOMS items (p = 0.30-0.59). Total DHI score demonstrated a moderate-to-strong association with HSAC (p = 0.30), VSAC (p = 0.32), and SP (p = 0.61). Results from the LRs predicting VOMS ocular symptoms (R (Alsalaheen et al., 2010) = 0.56; p < 0.001), and VOMS vestibular symptoms (R (Alsalaheen et al., 2010) = 0.23; p = 0.01), and NPC-distance (R (Alsalaheen et al., 2010) = 0.56; p < 0.001) included significant DHI predictors. CONCLUSIONS: There was moderate-to-strong associations between VOMS and 56% of DHI items (i.e., p > 0.30).
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