Table 3. Multivariable Analysis.

Factors	β (95% CI)
	Outflow Ratio	Ingress Ratio
Tobacco use	0.075 (−0.133 to 0.283)	−0.076 (−0.261 to 0.110)
Radiotherapy exposure	−0.011 (−0.344 to 0.321)	0.026 (−0.269 to 0.320)
Time between stages, d	0.014 (−0.003 to 0.031)	0.015 (0.001 to 0.030)
Defect depth
Partial thickness	1 [Reference]	1 [Reference]
Full thickness	0.054 (−0.223 to 0.331)	−0.106 (−0.352 to 0.140
Defect area, cm2	0.004 (−0.002 to 0.011)	0.003 (−0.003 to 0.008)
Cartilage graft use	−0.240 (−0.472 to −0.008)	0.039 (−0.169 to 0.247)