Table 4.

Pearson correlation coefficients between change in serum 25(OH)D₃ concentration and change in outcomes of physical performance between baseline and 6 weeks after surgery

	Total			Men			Women
	r	p value	n	r	p value	n	r	p value	n
HGS, kg	0.071	0.608	54	0.392	0.234	11	0.043	0.787	43
CST, s	0.169	0.205	58	−0.059	0.856	12	0.220	0.143	46
TUG, s	−0.047	0.726	58	−0.078	0.830	10	−0.010	0.944	48
10MWT, s	−0.159	0.230	59	−0.087	0.787	12	−0.149	0.318	47
LAPAQ, min/day	−0.096	0.467	60	0.206	0.500	13	−0.066	0.661	47
WOMAC, scale 0–96	−0.471	0.018	25	0.264	0.668	5	−0.410	0.072	20

25(OH)D₃, 25-hydroxyvitamin D₃; HGS, hand grip strength; CST, chair stand test; TUG, timed up and go test; 10MWT, 10-meter walking test; LAPAQ, LASA Physical Activity Questionnaire; WOMAC, Western Ontario and McMaster Universities Osteoarthritis index.