Table 4

Outcomes 6 months after total knee arthroplasty, by patient group

Test score	WSIB group, n = 38			Non-WSIB group, n = 38			p value

	Mean	SD	Range	Mean	SD	Range
Oxford Knee Score	30.6	9.7	16–48	23.9	7.5	12–42	0.005

Knee Society Score	144.1	33.4	81–198	162.4	30.5	79–200	0.038

Knee score	75.7	18.9	41–99	86.9	14.5	44–100	0.019

Function score^*	64.4	23.2	20–100	75.5	21.7	35–100	0.07^†

Flexion	105.4	13.5	25–80	112.2	9.3	94–128	0.035

Pain^†	3.1	2.1	1–7	1.9	1.5	1–7	0.018

WSIB = patients receiving Ontario Workplace Safety and Insurance Board benefits
↵* All group differences were statistically significant (p ≤ 0.05) except for the function score.
↵† Possible scores ranged from 1 (no pain) to 7 (severe).