B Dellhag1, A Bjelle. 1. Department of Occupational Therapy, Sahlgren University Hospital, Gothenburg, Sweden.
Abstract
OBJECTIVE: To develop and evaluate a Grip Ability Test (GAT) for clinical evaluation of hand function in patients with rheumatoid arthritis (RA) by modifying a general test for hand function based entirely on activities of daily living, the Grip Function Test (GFT). METHODS: The GAT items were selected from those in the GFT that were sensitive to change in a hand training program of patients with RA. Based on a multivariate analysis, 3 items were chosen with an optimal representation of different grip types. RESULTS: The reliability was high: intraobserver test r = 0.985, p < 0.001; interobserver test r = 0.948, p < 0.001; internal consistency (Cronbach's alpha) 0.65. All items discriminated (p < 0.001) between patients with RA and healthy controls. The sensitivity to change in a hand training program in 24 patients with RA was significant for the total GAT (p < 0.001), as well as for the 3 items separately (p < 0.01, 0.01, and 0.05, respectively). CONCLUSION: The GAT for patients with RA was reliable, valid, and sensitive to change. It does not require sophisticated equipment and takes 5 min to perform.
OBJECTIVE: To develop and evaluate a Grip Ability Test (GAT) for clinical evaluation of hand function in patients with rheumatoid arthritis (RA) by modifying a general test for hand function based entirely on activities of daily living, the Grip Function Test (GFT). METHODS: The GAT items were selected from those in the GFT that were sensitive to change in a hand training program of patients with RA. Based on a multivariate analysis, 3 items were chosen with an optimal representation of different grip types. RESULTS: The reliability was high: intraobserver test r = 0.985, p < 0.001; interobserver test r = 0.948, p < 0.001; internal consistency (Cronbach's alpha) 0.65. All items discriminated (p < 0.001) between patients with RA and healthy controls. The sensitivity to change in a hand training program in 24 patients with RA was significant for the total GAT (p < 0.001), as well as for the 3 items separately (p < 0.01, 0.01, and 0.05, respectively). CONCLUSION: The GAT for patients with RA was reliable, valid, and sensitive to change. It does not require sophisticated equipment and takes 5 min to perform.
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