Rates of Intraventricular Hemorrhage in Preterm Neonates During the First 6 Hours of Life

To the Editor We want to congratulate Nagy et al on publishing their recent article. However, we want to draw attention to several significant concerns. The authors excluded 2 studies from our 2014 meta-analysis, although these studies met their stated inclusion criteria. They also assert the inclusion of 5 studies not used in our 2014 meta-analysis; however, we acknowledge that we inadvertently omitted only 2. Notably, 1 of the studies omitted by us revealed that 10 of 25 cases (40.0%) of intraventricular hemorrhage (IVH) occurred within the first 6 hours of life (HOL). Nevertheless, the upper limit of the 95% CI for the rate of IVH within the first 6 HOL years before 2007, as indicated in the meta-analysis conducted by Nagy et al, corresponds to our estimated rate of 48%.