Preoperative vitamin D level does not affect the short-term functional outcome after total knee arthroplasty in elderly women

Table 3 Comparison of functional outcome between vitamin D-sufficient group (group 1) and vitamin D-deficient group (group 2)

Variable	Group 1 (n = 44)	Group 2 (n = 176)	p value* w/o control	p value† w control
Preoperatively
VAS score	61.3 (50–80)	60.8 (50–80)	0.734	0.612
KSKS	41.6 (15–62)	39.7 (12–58)	0.185	0.150
KSFS	70.8 (40–85)	70.4 (32–82)	0.863	0.695
WOMAC score	44.2 (36–68)	42.3 (32–67)	0.768	0.691
Postoperative 1 year
VAS score	44.5 (20–50)	44.5 (10–50)	0.983	0.885
KSKS	92.1 (55–100)	92.2 (45–100)	0.948	0.941
KSFS	85.8 (50–100)	88.4 (45–100)	0.338	0.394
WOMAC score	8.2 (0–32)	10.3 (0–47)	0.287	0.286

Data for VAS score, KSKS, KSFS, and WOMAC score displayed as mean (range)
KSFS Knee Society Functional Score, KSKS Knee Society Knee Score, VAS Visual Analogue Scale, WOMAC Western Ontario and McMaster Universities Arthritis Index
*Comparison with two-sample t test without control of weight
†Comparison with analysis of covariance, as weights were assigned to covariate variable

ISSN: 2234-2451