Table 3.

Results of the univariate associations between the predictor variables and fully RTW > 78 days using logistic regression analyses

Patient characteristics	Categories	OR	90% CI for OR		p value
			Lower	Upper
Gender	Male	0.91	0.44	1.88	0.83
	Female (ref)
Age	>27	1.23	0.58	2.63	0.65
	≤27 (ref)
BMI	>24	1.00	0.48	2.07	1.00
	≤24 (ref)
IKDC*	–	1.01	0.99	1.04	0.41
EQ-5D*	–	0.25	0.02	3.41	0.38
Injury-related characteristics
Side	Left	1.64	0.79	3.42	0.27
	Right (ref)
Knee extension	Not full	1.01	0.99	1.02	0.49
	Full (ref)
Time injury to surgery	>3 months	2.24	0.76	6.61	0.22
	≤ 3 months (ref)
Characteristics of surgery
Medial menisectomy	Menisectomy	1.06	0.39	2.90	0.92
	Non-menisectomy (ref)
Lateral menisectomy	Menisectomy	0.69	0.21	2.23	0.60
	Non-menisectomy (ref)
Cartilage damage	Grade 3,4	1.46	0.47	4.53	0.59
	Grade 0,1,2 (ref)
Sports activity level
Knee-taxing sport pre trauma	Knee-taxing	0.86	0.35	2.12	0.79
	Not knee-taxing (ref)
Contact sport pre trauma	Contact sports	0.74	0.35	1.55	0.50
	Non-contact sports (ref)
Pivoting sport pre trauma	Pivoting	0.59	0.25	1.38	0.31
	Non-pivoting (ref)
Tegner score before injury*	–	0.87	0.69	1.10	0.33
Tegner score after injury before surgery*	–	0.83	0.58	1.17	0.37
Contact during trauma	Physical contact	1.51	0.63	3.61	0.43
	No contact (ref)
Work-related characteristics
Workload	Heavy	4.19	1.93	9.11	<0.01
	Light (ref)
WORQ experience*	–	1.00	0.98	1.03	0.87
Characteristics of rehabilitation
Physiotherapy up to 6 weeks (frequency per week)	≤2	1.00	0.40	2.50	1.00
	>2 (ref)
Physiotherapy 6 weeks up to 3 months (frequency per week)	≤2	0.77	0.29	2.06	0.67
	>2 (ref)
Gym	No gym	0.95	0.46	1.97	0.90
	Gym (ref)
Homework exercises	No homework exercise	0.73	0.20	2.71	0.69
	Homework exercise (ref)
Weeks crutches*	–	1.37	1.12	1.67	0.01

Ref reference category