Does the mode of delivery affect the birthweight? [corrected]

Area of Science:

• Obstetrics and Gynecology
• Perinatal Research
• Neonatal Health

Background:

• Birthweight is a critical indicator of neonatal health and long-term outcomes.
• Understanding factors influencing birthweight, such as mode of delivery, is crucial for perinatal care.
• Cesarean section rates have been increasing globally, necessitating research into its effects.

Purpose of the Study:

• To determine if the mode of delivery (vaginal birth vs. cesarean section) influences infant birthweight.
• To analyze birthweight patterns in relation to delivery method across different gestational ages.
• To investigate trends in cesarean rates and birthweights over time.

Main Methods:

• Retrospective analysis of 3092 singleton live births from uncomplicated pregnancies.
• Birthweights were standardized as multiples of the median (MoM) for gestational age.
• Comparison of birthweights between infants delivered vaginally and via cesarean section.

Main Results:

• Infants born via cesarean section had a higher average birthweight than those born vaginally.
• This difference in birthweight was not consistent across all gestational ages.
• An increase in cesarean delivery rates and average birthweights was observed over time, with cesarean-delivered mothers being older.

Conclusions:

• The mode of delivery appears to have a negligible overall effect on birthweight.
• Maternal age and increasing cesarean rates are associated factors that warrant further investigation.
• While statistical differences exist, the clinical significance of delivery mode on birthweight requires nuanced interpretation.