Incidence and risk factors of retinopathy of prematurity in a tertiary eye hospital in Tehran

Abstract

The authors observed a relatively high incidence of ROP in this series, especially its severe form affecting relatively more mature infants, which merits further investigation. GA, BW and oxygen therapy were independent ROP determinants.

Comparison of UK and US screening criteria for detection of retinopathy of prematurity in a developing nation

“…19 A large discrepancy between industrialized countries and our study population was observed in infants .1,000 g. Our ROP incidence of 17.5% and treatment rate of 47.5% in infants .1,000g and incidence of 6% with treatment rate of 30% in infants .1,500g contrast starkly with the report of Hussain and colleagues 20 of no stage 3 disease in infants .1,500 g or .28 weeks and no ROP requiring treatment in infants .1,000 g. Our findings were similar to the 18.2% incidence in Brazil but lower than 30.6% observed in Tehran and 50.7% in Saudi Arabia. [21][22][23] The relatively high overall treatment rate in this study is also observed in other developing countries. A study from Thailand reported 49% treatment rate.…”

“…A higher treatment rate was also reported from Iran. 23,24 The two studies conducted in Ankara reported treatment rates of 53% 3 and 16.1%. 4 Variations in rate of severe ROP among NICUs in Turkey are likely.…”

Incidence and Risk Factors of Retinopathy of Prematurity From 2 Neonatal Intensive Care Units in a Hong Kong Chinese Population

“…These findings were in agreement with what has been reported in the literature for both Chinese and white populations. [8][9][10][11][12]33,34 We found that the presence of GDM (OR, 0.30; 95% CI, 0.07-0.85; P = 0.02) and PEE (OR, 0.42; 95% CI, 0.19-0.83; P = 0.01) were protective of ROP development but not for type 1 ROP. Gestational diabetes mellitus is the most prevalent metabolic disorder during pregnancy.…”

“…[8][9][10][11][12] The prevalence of ROP varies between geographic regions and socioeconomic status from 5% to 8% in developed countries and up to 30% in middle-income families or developing countries. 13 There are only a few studies on the incidence and risk factors of this important morbidity among very low birth weight (VLBW) infants (≤1500 g) in the Chinese population.…”

Risk factors associated with retinopathy of prematurity among neonates in a tertiary care hospital in Nepal

“…Several other risk factors have also been implicated such as gender, phototherapy for the treatment of hyperbilirubinaemia in neonates, anaemia needing blood transfusion, sepsis, apnoea, respiratory distress syndrome, multiple pregnancy and intraventricular haemorrhage [7][8][9][10] . Nevertheless, a preterm extremely low birth weight neonate can develop ROP even without exposure to oxygen or presence of these risk factors.…”