title: Incidence and risk factors for retinopathy of prematurity in multiple gestations: a Chinese population study.
abstract: To determine the incidence and risk factors of retinopathy of prematurity (ROP) among new-born Chinese infants of multiple gestations.A retrospective review of medical records was performed for all neonates of multiple gestations screened for ROP between January 2007 and December 2012 in 2 neonatal intensive care units in Hong Kong. Screening was offered to very low birth weight (VLBW; ≤1500 g) and/or preterm (gestation ≤32 weeks) neonates using the Royal College of Ophthalmologists ROP guideline and the International Classification of ROP by 3 pediatric ophthalmologists. Maternal and neonatal covariates were analyzed using univariate and multivariate regression analyses for both ROP and Type 1 ROP.A total of 153 Chinese infants of multiple gestations were included in the study. The mean gestational age (GA) was 30.8 ± 2.4 weeks and the mean birth weight (BW) was 1284.8 ± 267.4 g. The incidence of ROP and Type 1 ROP was 11.8% and 3.9%, respectively. On univariate analysis, younger GA, lighter birth weight, postnatal hypotension, inotropes use, bronchopulmonary disease, and intraventricular hemorrhage were common independent risk factors for the development of ROP and Type 1 ROP (all P ≤ 0.04). On multivariate analysis, younger GA, surfactant use, invasive mechanical ventilation, higher mean oxygen concentration, thrombocytopenia, intraventricular hemorrhage, total parental nutrition, and hypoglycemia were significant risk factors for ROP. For Type 1 ROP, there were no significant dependent risk factors.In preterm Chinese infants born from multiple gestations, prematurity, lighter weight, postnatal hypotension, inotropes use, bronchopulmonary dysplasia, and an intraventricular hemorrhage were common independent risk factors for the development of ROP and Type 1 ROP.
authors.affiliation: From the Department of Ophthalmology, Caritas Medical Centre, Hong Kong SAR (GSKY, JWYL, VTYT, BCYC); Department of Applied Mathematics, The Hong Kong Polytechnic University, Hong Kong SAR (SY, CCLU); Centre of Health Behaviours Research, The Chinese University of Hong Kong, Hong Kong SAR (EC); Department of Ophthalmology, The University of Hong Kong, Hong Kong SAR, People's Republic of China (IYHW, JWYL).
authors.forename: Gordon S K
authors.initials: GSK
authors.lastname: Yau
authors.forename: Jacky W Y
authors.initials: JWY
authors.lastname: Lee
authors.forename: Victor T Y
authors.initials: VTY
authors.lastname: Tam
authors.forename: Stan
authors.initials: S
authors.lastname: Yip
authors.forename: Edith
authors.initials: E
authors.lastname: Cheng
authors.forename: Catherine C L
authors.initials: CCL
authors.lastname: Liu
authors.forename: Benjamin C Y
authors.initials: BCY
authors.lastname: Chu
authors.forename: Ian Y H
authors.initials: IYH
authors.lastname: Wong
mesh_terms: D044466:Asian People; D005260:Female; D006723:Hong Kong / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D007234:Infant, Premature; D016015:Logistic Models; D008297:Male; D015999:Multivariate Analysis; D011247:Pregnancy; D011272:Pregnancy, Multiple; D012178:Retinopathy of Prematurity / Q000453:epidemiology* / Q000209:etiology; D012189:Retrospective Studies; D012307:Risk Factors