Association between vitamin D deficiency and primary cesarean section

Area of Science:

• Obstetrics and Gynecology
• Endocrinology
• Public Health

Background:

• Historically, rachitic pelvis led to maternal mortality during childbirth.
• Vitamin D deficiency, once rare, is now prevalent in industrialized nations.
• Vitamin D deficiency is associated with impaired muscular function, relevant to labor and delivery.

Purpose of the Study:

• To investigate the association between maternal serum 25-hydroxyvitamin D [25(OH)D] levels and the incidence of primary cesarean sections.
• To determine if low vitamin D status increases the likelihood of cesarean birth.

Main Methods:

• Maternal and infant serum 25(OH)D levels were measured at birth.
• Demographic and medical data were abstracted from maternal records.
• 253 women were enrolled, with data analyzed for 43 who underwent primary cesarean section.

Main Results:

• A significant inverse association was found between serum 25(OH)D levels and cesarean section rates.
• Women with 25(OH)D levels below 37.5 nmol/liter had a 28% cesarean rate versus 14% for those with levels 37.5 nmol/liter or higher.
• After adjusting for confounders, women with low vitamin D were nearly 4 times more likely to have a cesarean section (aOR 3.84).

Conclusions:

• Maternal vitamin D deficiency is associated with an increased risk of primary cesarean section.
• Maintaining adequate vitamin D levels may be crucial for optimizing birth outcomes.
• Further research into vitamin D supplementation during pregnancy is warranted.