Table 2.

Bivariate analysis of factors associated with physical function

Variable	LEFS	P value	PCS	P value
Sex
Male	46±17	0.45	41±11	0.83
Female	48±19		42±13
Age at time of surgery (years)	-0,093	0.22	-0.096	0.23
Age at time of study (years)	-0,14	0.067	-0,12	0.11
Hospital
Erasmus Medical Center	47±18	0.99	41±12	0.86
University Medical Center Utrecht	47±16		42±11
Days admitted to hospital	-0.031	0.70	-0,035	0.66
Tobacco use
No	49±17	0.087	43±11	0.24
Yes	45±16		40±12
Unknown	41±18		39±13
Cardiovascular history
No	47±17	0.97	41±12	0.55
Yes	46±17		43±13
Gustilo
Closed, grade 1 or 2	49±14	0.78	44±10	0.91
3a	49±21		42±13
3b	46±17		41±11
3c	50±15		40±12
Unknown	45±17		41±12
Trauma location
Foot or ankle	43±17	0.070	39±12	0.15
Cruris or knee	48±17		42±12
SF-36 Mental Component Scale	0.57	<0.001	0.75	<0.001
Surgery
Amputation	43±18	0.10	40±12	0.31
Reconstruction	48±17		42±12

Bold indicates statistically significant difference; continuous variables as mean (±standard deviation); discrete variables as number (percentage)