Impact of donor graft quality on deep anterior lamellar Keratoplasty (DALK)

Table 3 Linear regression analysis of clinical outcome parameters

	Donor tissue	Coefficient	95% Confidence interval (CI)	P-value
BSCVA after 12 months	Age	0.007	−0.01 – 0.024	0.408
	ECD	0.000	−0.001 – 0.001	0.760
	Total preservation time	−0.008	−0.041 – 0.024	0.604
	Preservation time after split	−0.006	−0.023 – 0.011	0.509
BSCVA after suture removal	age	−0.002	−0.005 – 0.002	0.275
	ECD	0.000	0–0	0.571
	Total preservation time	0.002	−0.005 – 0.009	0.579
	Preservation time after split	0.000	−0.003 – 0.003	0.908
CCT after 12 months	age	−0.489	−1.711 – 0.733	0.426
	ECD	−0.018	−0.061 – 0.025	0.411
	Total preservation time	−1.248	−3.877 – 1.381	0.345
	Preservation time after split	−0.172	−1.45 – 1.106	0.788
CCT after suture removal	age	−0.500	−2.094 – 1.094	0.523
	ECD	−0.023	−0.082 – 0.036	0.422
	Total preservation time	0.921	−3.848 – 5.691	0.693
	Preservation time after split	0.739	−3.164 – 4.641	0.699

Linear regression analysis for main clinical outcome parameters including BSCVA and CCT results of recipients. Independent donor tissue variables: Age, ECD, total preservation time and preservation time after split
BSCVA best spectacle corrected visual acuity, CCT, central corneal thickness, CI Confidence interval, ECD endothelial cell density