In our study, the relationship between male and female newborns' second finger (2D) and fourth finger (4D) lengths, height, weight, and head circumference measurements and their mothers' 2D and 4D lengths was examined.Methods: One hundred and twenty mothers between the ages of 18 and 40 who recently gave birth and 60 females and 60 males newborns of these mothers participated in the study. Height, weight, and head circumference measurements of newborns were taken after birth. 2D and 4D length measurements of newborns and their mothers were made with a caliper with 0.01 mm precision which had.Results: Right 2D:4D ratio (0.95 ± 0.08) of male newborns was found to be lower when compared with the right 2D:4D (1.00 ± 0.17) ratio of female newborns. Left 2D:4D ratio of male newborns (0.96 ± 0.07) was also found to be lower when compared with the left 2D:4D (0.98 ± 0.12) ratio of female newborns. Significant positive correlation was found between right 2D lengths of mothers of male newborns and newborns' weight and head diameter and between mothers' 2D:4D ratio and newborns' head diameter. Significant positive correlation was found between right 2D and 4D lengths of mothers of female newborns and female newborns' height, head circumference and right 2D and 4D lengths of female newborns. Significant positive correlation was found between left 2D lengths of mothers and female newborns' height, weight, and head circumference. Conclusions:We think that the data obtained in our study will provide basic information for obstetricians in determining prenatal measurements and for neonatal physicians after delivery.

Objective The epidemiological and clinical characteristics of neonates born to women infected with coronavirus disease 2019 (COVID-19) during pregnancy were assessed, and the correlation between this infection and spontaneous pneumothorax in neonates born to mothers with COVID-19 was evaluated in the present study. Methods Records of 14 neonates in the neonatal intensive care unit with pneumothorax were collected and analyzed. Pregnant women were routinely screened for COVID-19 before birth. This study only included the neonates of mothers positive for severe acute respiratory syndrome coronavirus 2 immunoglobulin Mand immunoglobulin G and developing spontaneous pneumothorax. Antenatal, natal and postnatal risk factors, data related to demographic, epidemiological and clinical characteristics, treatment strategies, and breastfeeding history were obtained from medical records. Results The gestational age of the 14 neonates was 30 to 38 weeks. One male infant was born by normal spontaneous vaginal delivery, while all other infants were born by C-section. Though the mothers did not have a diagnosis of COVID-19 in their charts, they all reported one or more symptoms when interviewed. No mother had received a COVID-19 vaccination before or during pregnancy. No mother had undergone a hospital visit or doctor examination due to suspicion of COVID and COVID polymerase chain reaction test. COVID antibody titers were present during admission to hospital before birth. Conclusion The infants of pregnant cases with symptomatic or asymptomatic COVID-19 may develop respiratory distress and pneumothorax. Observational data obtained from case series similar to what is presented here may be accepted as a potential first step to producing hypotheses to test with preclinical or clinical models if it can be expanded in larger cohorts.