Table 1: Clinical characteristics of premature infants undergoing intravitreal injections for retinopathy of prematurity under sevoflurane mask anesthesia.

, Mean SDMinimum–Maximum

Sex (male/female)23/10
Age at the birth (gestational week)28.3 2.225–33
Weight at the birth (gram)1300.5 290.7600–1850
Age at the first IVB (gestational week)36.2 3.531–44
Weight at the first IVB (gram)2148.5 450.31310–3130

IVB: Intravitreal bevacizumab.