Asymmetric Outcomes of Type 1 Retinopathy of Prematurity after Bilateral Intravitreal Ranibizumab Treatment

Table 2

Characteristics compared with infants between asymmetric and symmetric outcome.

	Asymmetric outcome group	Symmetric outcome group	value (independent t-test)
Number of patients (eyes)	9 (18)	75 (150)
Gestational age at birth (weeks)	29.6 ± 1.8	29.4 ± 2.1	0.556
Birth weight (g)	1222.2 ± 216.6	1412.2 ± 335.6	0.001
PNA at IVR (days)	52.1 ± 13.2	45.5 ± 13.8	0.946
PMA at IVR (weeks)	37.0 ± 2.4	35.9 ± 2.3	0.707

PMA: postmenstrual age; PNA: postnatal age; IVR: intravitreal injection of ranibizumab.