Table 4.

Univariate linear regression results with the VAS score one year after surgery as the dependent variable

Characteristics	Partial regression coefficient	Standard error	Standard partial regression coefficient	T value	P value
Gendera	0.720	0.254	0.331	2.833	0.006
Age	−0.007	0.010	− 0.084	− 0.680	0.499
Positiona	0.115	0.294	0.048	0.391	0.697
Smoker	−0.528	0.273	−0.233	−1.933	0.058
Diabetes	−0.671	0.562	−0.146	−1.192	0.237
Time from injury to surgery	−0.091	0.111	−0.101	−0.820	0.415
BMI	0.002	0.070	0.003	0.025	0.980
Surgical concepta	−1.112	0.245	−0.491	−4.545	< 0.001

^aThe gender is male as the control, the orientation is the left side as the control, the operation method is the ankle joint group as the control