Vitamin D deficiency, functional status, and balance in older adults with osteoarthritis

Figure 1 Comparison of functional status (analyzed with Lequesne index) of individuals with osteoarthritis in relation to vitamin D classification (deficiency/insufficiency and normal). The boxplots represent the median with interquartile range. The error bars represent minimum and maximum values for each group. ^a Statistically different, Mann-Whitney test, P < 0.05.