Table 3.

Physical and psychological status in patients with EOA according to vitamin D levels.

Measures	EOA Deficiency (<20 ng/mL)	EOA Sufficiency (>20 ng/mL)	Mean Difference (95% CI)	Effect Size (d)
Pain intensity	4.95 ± 3.52	2.22 ± 2.59	2.73 ** (−3.39 to −0.76)	0.88
WOMAC Total	29.27 ± 12.45	23.76 ± 13.93	5.51 * (−14.65 to −6.64)	0.41
Sit-to-stand (s)	16.29 ± 3.44	10.53 ± 2.54	5.76 ** (−6.34 to −0.81)	1.90
Walking speed (km/h)	4.99 ± 1.38	3.07 ± 0.54	1.92 ** (−1.34 to −0.11)	1.83
Anxiety	7.36 ± 4.17	4.01 ± 3.05	4.35 * (−3.86 to −2.15)	0.88
Depression	6.21 ± 3.06	3.31 ± 3.06	2.9 * (−2.96 to −0.15)	0.94
Social participation	4.57 ± 3.61	8.73 ± 2.55	−4.16 ** (−2.82 to −1.14)	1.01

Data are expressed as mean ± standard deviation. ** p < 0.01; * p < 0.05.