Table 5.

Comparisons of distributions of the bone mineral density (BMD) categories between the knee OA and control groups after matched for age and body mass index

^*Final category means BMD category defined using a lowest BMD T-score among the proximal femur or the lumbar spine T-scores; ^†Statistical analysis was performed using the chi-square test; ^‡According to the guidelines issued by the International Society for Clinical Densitometry, inappropriate lumbar BMD T-scores of 15 cases in each group were excluded. OA, Osteoarthritis; SD, Standard Deviation.