To the Editor Maternal and neonatal mortality and stillbirths have received gradually increased attention all over the world. It is urgent to count every mother and infant and understand the causes of death and the contributing factors.1 Dypvik et al2 cast eyes on this topic and found that preterm infants with either high or low placental weight had an increased risk of neonatal death. These findings may help to identify infants at increased risk of neonatal death, which is of great significance in clinical and public health. However, we have some concerns about the results and we are eager to see more explorations.
Zhang J, Xiao K, Liu Y. More Details Needed on Association of Placental Weight With Risk of Neonatal Death. JAMA Pediatr. 2020;174(9):905–906. doi:10.1001/jamapediatrics.2020.0963
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