Table 2.

Multivariate Logistic Regression Model Predicting Perforation and/or Therapeutic Penetrating Keratoplasty

Baseline Characteristic	OR (95% CI)	P Valuea
Infiltrate depthb	1.69 (1.12–2.53)	.01
Infiltrate and/or scar sizec	1.37 (1.12–1.67)	.002
Visual acuity, logMAR	1.06 (0.97–1.16)	.14
Agricultural occupation	0.59 (0.33–1.08)	.09
Hypopyond	2.28 (1.18–4.40)	.01

Abbreviation: OR, odds ratio.

^aGlobal P value of the model is <.001.

^bCategorical variable: no infiltrate, infiltrate in anterior one-third of the stroma, up to two-thirds stromal depth, or involving posterior one-third of the stroma.

^cGeometric mean of the longest diameter and longest perpendicular to that diameter in millimeters.

^dBinary variable indicating presence or absence of hypopyon at baseline visit.