Impact of Birth and Hospitalization Factors in Retinopathy of Prematurity
Retinopathy of Prematurity (ROP) is a pathologic condition in the retina characterized by abnormal vasoproliferation. We aim to investigate the correlation of different birth- and hospitalization-related factors in the progression of ROP.
This historical cohort study performed in the ophthalmology center of Ayatollah Rouhani Hospital in Babol (Babol University of Medical Sciences, Babol, Iran), included 828 infants (gestational age <35 weeks and birth weight <2500 g). Also, data were collected from the history of hospitalized premature infants.
The lower gestational weight of infants has been observed in ROP infants (1418.05±547.09 g) compared to non-ROP infants (1917.31±486.01 g) (p<0.001). In addition, the average gestational age of ROP infants (30.28±2.34 weeks) was younger than non-ROP infants (33.26±1.00 weeks) (p=0.042). Increase in the duration of hospitalization increased 6% the chance of ROP in infants (OR=1.06; 95%CI: [1.05,1.08]) (p<0.001). Furthermore, increase in the count of blood replacement decreased 29% the chance of complete remission of ROP (OR=0.71; 95%CI: [0.51,0.95]) (p=0.029). The blood group does not have an impact on ROP development or remission.
More birth weight of premature infants is associated with less chance of ROP incidence. Moreover, the lower gestational age is related to more chances of ROP.
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