Table 1. Demographic and baseline characteristics of all 394 patients with comparison between eyes with and without the development of IRT.

Parameters	Iatrogenic tear (n=11)	No iatrogenic tear (n=383)	P
Age (y)	66.2±12.8	66.8±11.8	0.87a
Gender, female (%)	45.5	55.1	0.53b
Ethnicity, ME/C/AA (%)	45/55/0	40/55/5	0.98b
MH (%)	36	30	0.55b
ERM (%)	36	48	0.74b
Preexisting PVD at time of surgery (%)	64	45	0.76b
Preexisting pseudophakia/aphakia at time of surgery (%)	63	73	0.52b

IRT: Iatrogenic retinal tears; ME: Middle Eastern; C: Caucasian; AA: African American; MH: Macular hole; ERM: Epiretinal membrane; PVD: Posterior vitreous detachment. ^aStudent's t-test; ^bChi-square with Yates correction.