The relationship of the subtypes of preterm birth with retinopathy of prematurity

The role of the maternal and fetal inflammatory response in retinopathy of prematurity

“…As previously discussed, 5 There were some limitations to our study. PPROM > 24 hours group had the lowest frequency of severe ROP.…”

“…20 The registry has detailed information on maternal risk factors, PTB subtypes, 5 and the results of the ROP examinations. 20 The registry has detailed information on maternal risk factors, PTB subtypes, 5 and the results of the ROP examinations.…”

“…5 We classified the subtypes of PTB as follows: (i) 5 We classified the subtypes of PTB as follows: (i) …”

“…All infants fulfilled the American Academy of Pediatrics 2013 screening criteria for ROP defined as "infants with a birth weight of ≤1500 g or gestational age of 30 weeks or less (as defined by the attending neonatologist) and selected infants with a birth weight between 1500 and 2000 g or gestational age of >30 weeks with an unstable clinical course, including those requiring cardiorespiratory support and who were believed by their attending pediatrician or neonatologist to be at high risk for ROP." 20 The registry has detailed information on maternal risk factors, PTB subtypes, 5 and the results of the ROP examinations. Data abstraction was performed retrospectively by a team of research assistants trained in perinatal data abstraction.…”

“…In addition to gestational age and birth weight at delivery, other variables included in the analysis were race/ethnicity, the use of antenatal antibiotics, magnesium sulfate and corticosteroids, and the subtype of PTB. 5 We classified the subtypes of PTB as follows: (i) spontaneous preterm labor (SPTL), regular uterine contractions with intact membranes before the onset of labor resulting in progressive changes to the cervix. (ii) Medical indication of preterm birth (MIPTB), a delivery for a medical indication for fetal or maternal complications, and (iii) preterm premature rupture of the membranes (PPROM).…”