. Author manuscript; available in PMC: 2019 Feb 25.

Published in final edited form as: Am J Sports Med. 2013 Mar 4;41(5):1058–1066. doi: 10.1177/0363546513477836

Table 2.

Cox regression results for twenty knees with shared frailty term (theta) to control for matched-pairs.

Regressor	Hazard Ratio	95% confidence interval	p-value
Landing Force	32.27	(2.13, 487.7)	0.012*
Gender	0.95	(0.05, 19.7)	0.98
ACL CSA	0.63	(0.42, 0.93)	0.022*
LTS	0.90	(0.55, 1.45)	0.67
Theta	2.97		0.006*

Abbreviations: CSA – cross-sectional area; LTS: lateral tibial slope.

Asterisk indicates significant p-value