Table 3 Genotype effects of the Sp1 binding site polymorphism within the COL1A1 gene on the characteristics of the combined control and ACL participants

	GG	GT	TT	p Value*
Age, years†	33.2 (11.3) (n = 165)	33.8 (11.7) (n = 68)	39.3 (10.2) (n = 6)	0.425
Height, cm†	176.9 (9.9) (n = 158)	177.9 (9.1) (n = 66)	172.8 (9.4) (n = 6)	0.750
Weight, kg†	77.7 (15.8) (n = 162)	78.9 (13.1) (n = 66)	62.7 (8.5) (n = 6)	0.334
BMI, kg/cm²†	24.6 (3.8) (n = 155)	24.9 (2.7) (n = 65)	20.9 (1.3) (n = 6)	0.152

*Except for age, p values are co-varied for gender.
†All values are self-reported values at the time of the first ACL rupture for the ACL-injured participants and at recruitment for the control participants.
Data are mean (SD) (n).