Table 4.

Univariable analysis of disability

Independent variables	DF (R-square)	F value	P value
Binominal factor of man/woman	1 (0.08)	14.58	0.0002
Age	1 (0.03)	4.33	0.0390
Pre-operative WORC	1 (0.12)	21.33	< 0.0001
Post-op pain limited ROM	1 (0.54)	178.50	< 0.0001
Comorbidity	1 (0.0008)	0.13	0.7177
BMI	1 (0.0003)	0.06	0.8089
Post-op strength	1 (0.31)	68.41	< 0.0001
Post-op participation limitation	2 (0.53)	4.33	0.006
Pre-op expectations for return to work	3 (0.08)	2.81	0.0422
Work Status	1 (0.14)	25.50	< 0.0001
Level of pathology	1 (0.03)	5.22	0.0237
Pre-op Medication use	1 (0.03)	5.61	0.0191