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C-section 4X more likely when vitamin D less than 15 ng – many items

Association between vitamin D deficiency and primary cesarean section.

J Clin Endocrinol Metab. 2009 Mar;94(3):940-5. Epub 2008 Dec 23.
Merewood A, Mehta SD, Chen TC, Bauchner H, Holick MF.
Department of Pediatrics, Division of Endocrinology, Diabetes, and Nutrition, Boston University School of Medicine, and Division of General Pediatrics, Boston Medical Center, Boston, Massachusetts 02118, USA.

BACKGROUND: At the turn of the 20th century, women commonly died in childbirth due to rachitic pelvis. Although rickets virtually disappeared with the discovery of the hormone vitamin D, recent reports suggest vitamin D deficiency is widespread in industrialized nations. Poor muscular performance is an established symptom of vitamin D deficiency. The current U.S. cesarean birth rate is at an all-time high of 30.2%. We analyzed the relationship between maternal serum 25-hydroxyvitamin D[25(OH)D] status, and prevalence of primary cesarean section.

METHODS: Between 2005 and 2007, we measured maternal and infant serum 25(OH)D at birth and abstracted demographic and medical data from the maternal medical record at an urban teaching hospital (Boston, MA) with 2500 births per year. We enrolled 253 women, of whom 43 (17%) had a primary cesarean.

RESULTS: There was an inverse association with having a cesarean section and serum 25(OH)D levels. We found that 28% of women with serum 25(OH)D less than 37.5 nmol/liter had a cesarean section, compared with only 14% of women with 25(OH)D 37.5nmol/liter or greater (P = 0.012). In multivariable logistic regression analysis controlling for race, age, education level, insurance status, and alcohol use, women with 25(OH)D less than 37.5 nmol/liter were almost 4 times as likely to have a cesarean than women with 25(OH)D 37.5 nmol/liter or greater (adjusted odds ratio 3.84; 95% confidence interval 1.71 to 8.62).

CONCLUSION: Vitamin D deficiency was associated with increased odds of primary cesarean section PMID: 19106272


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VITAMIN D DEFICIENCY ASSOCIATED WITH GREATER RATES OF CESAREAN SECTIONS (news release)

Researchers from Boston University School of Medicine (BUSM) and Boston Medical Center (BMC) found that pregnant women who are vitamin D deficient are also at an increased risk for delivering a baby by caesarean section as compared to pregnant women who are not vitamin D deficient. These findings currently appear on-line in the Journal of Clinical Endocrinology & Metabolism.

At the turn of the 20th century, women commonly died in childbirth due to "rachitic pelvis" rickets of the pelvis. While rickets virtually disappeared with the discovery of vitamin D, recent reports suggest that vitamin D deficiency is widespread in industrialized nations.

Over a two-year period, the researchers analyzed the relationship between maternal serum 25-hydroxyvitamin D [25(OH)D] and the prevalence of primary caesarean section. In total, 253 women were enrolled in this study, of whom 43 (17 percent) had a caesarean section. The researchers found that 28 percent of women with serum 25(OH)D less than 37.5 nmol/L had a caesarean section, compared to only 14 percent of women with 25(OH)D greater than 37.5 nmol/L.

"In our analysis, pregnant women who were vitamin D deficient at the time of delivery had almost four times the odds of caesarean birth than women who were not deficient," said senior author Michael Holick, MD, PhD, director of the General Clinical Research Center and professor of medicine, physiology and biophysics at BUSM and Anne Merewood assistant professor of pediatrics at BUSM and lead author of the study.

According to Holick, one explanation for the findings is that vitamin D deficiency has been associated with proximal muscle weakness as well as suboptimal muscle performance and strength.

Wonder how many caesarean births are due to the birth canal being the wrong shape/too narrow due to low vitamin D before and after the mother was born

One study of SE Asia births found that 6.3% were due to cephalopelvic disproportion

MSNBC noted that 1/3 of the births in Asia, Latin American, and the US are now caesarean and it is now 1/2 = 50% of the births in China


See also Vitamin D Life

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Attached files

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13946 C-section risk 25OHD military hospital Dhillon.pdf PDF 2020 admin 23 Jun, 2020 15:00 294.12 Kb 78
13945 C-section risk 25OHD military hospital Dhillon.pdf PDF 2020 admin 23 Jun, 2020 15:00 294.12 Kb 42
5933 commonprocedures1.png admin 17 Sep, 2015 21:16 24.08 Kb 1246
5932 Cost of birth.jpg admin 17 Sep, 2015 21:12 47.76 Kb 1279
5931 c sectuib vs vitamin D.gif admin 17 Sep, 2015 21:00 38.17 Kb 1460
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