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Preterm birth 3X more likely if low vitamin D – Oct 2018

Vitamin D plasma concentrations in pregnant women and their preterm newborns.

BMC Pregnancy Childbirth. 2018 Oct 22;18(1):412. doi: 10.1186/s12884-018-2045-1.
Kassai MS1, Cafeo FR2, Affonso-Kaufman FA2, Suano-Souza FI3,4, Sarni ROS1.


Pregnancy category starts with

794 items in Pregnancy category

 - see also

Healthy pregnancies need lots of vitamin D has the following summary

0. Chance of not conceiving3.4 times Observe
1. Miscarriage 2.5 times Observe
2. Pre-eclampsia 3.6 timesRCT
3. Gestational Diabetes 3 times RCT
4. Good 2nd trimester sleep quality 3.5 times Observe
5. Premature birth 2 times RCT
6. C-section - unplanned 1.6 timesObserve
     Stillbirth - OMEGA-3 4 timesRCT - Omega-3
7. Depression AFTER pregnancy 1.4 times RCT
8. Small for Gestational Age 1.6 times meta-analysis
9. Infant height, weight, head size
     within normal limits
10. Childhood Wheezing 1.3 times RCT
11. Additional child is Autistic 4 times Intervention
12.Young adult Multiple Sclerosis 1.9 timesObserve
13. Preeclampsia in young adult 3.5 timesRCT
14. Good motor skills @ age 31.4 times Observe
15. Childhood Mite allergy 5 times RCT
16. Childhood Respiratory Tract visits 2.5 times RCT

RCT = Randomized Controlled Trial

Preterm births are VERY costly – Feb 2017 contains this cost-analysis
Assumptions: additional $50,000 per premature birth, $100 for education & supplements per pregnancy

Net savings
per birth
After subtract
all cost
# needed
to eliminate
1 preterm
Cost of
educ, supp
per pregnancy
Total cost
Cost of
test per
Net savings after
subtract costs
Vitamin D
(5,000 IU avg)
$4,30020$100$2,000$200%%%(2 tests)$4,000$43,000
Omega-3 $64667 $100$6,700$0 $0 $43,300
Vitamin C
reduces early rupture
$64667$100$6,700$0$0 $43,300
Iodine $320100$100$10,000$80$8,000$32,000

Does not include additional savings to infant beyond the first year
   such as reductions in Autism, MS, Respiratory Tract Infection, Asthma, Allergies
Does not include additional savings to mother
   such as reduction in preeclampsia, miscarriage, gestational diabetes, depression
   nor does it assign any costs for anguish of possible premie death, stillbirth, time off from work, job productivity

 Download the PDF from VitaminDWiki

Vitamin D deficiency is a global public health issue. More than half of pregnant women are affected by vitamin D insufficiency/deficiency. Studies suggest an association between low vitamin D concentrations during pregnancy with intrauterine growth restriction and prematurity. This study aimed to describe the concentrations of 25(OH)D (25-hydroxyvitamin D) of mothers who delivered preterm newborns compared to women with full-term pregnancy deliveries, as well as to relate 25(OH)D blood concentrations of mothers with those of their newborns.

This cross-sectional study was conducted with 66 mothers who had given birth to preterm babies and their preterm newborns (PTNB, < 32 weeks), and 92 women who had given birth at the full-term of their pregnancy and their newborns (FTNB). Data were collected on the characteristics of mothers (gestational age, diseases, and habits) and newborns (anthropometry and adequacy for gestational age). Ten milliliters of blood were drawn from the mothers and the umbilical cord of newborns at birth to identify the 25(OH)D, parathyroid hormone, calcium, phosphorus, and alkaline phosphatase concentrations.

Mothers in the PTNB group had significantly lower mean 25(OH)D blood levels (21.7 ± 10.8 ng/mL vs. 26.2 ± 9.8 ng/mL; p = 0.011) and were three times more likely to have insufficiency when compared to mothers in the FTNB group (OR = 2.993; 95%CI 1.02-8.74). Newborns in the PTNB group also had lower 25(OH)D concentrations compared to FTNB group (25.9 ± 13.9 ng/dL vs. 31.9 ± 12.3 ng/dL; p = 0.009). There was a directly proportional correlation between mother and newborn umbilical cord 25(OH)D concentrations in PTNB (r = 0.596; p <  0.001) and FTNB (r = 0.765; p <  0.001).

Mothers who delivered preterm babies and their preterm newborns had lower 25(OH)D concentrations compared to women who had given birth at the full-term of their pregnancy. In both groups, 25(OH)D concentrations of the mothers correlated directly with those of the newborns, and this correlation was higher in the full-term birth group. Nevertheless, the recommended universal vitamin D supplementation in pregnant women to curb the risk of preterm birth is still incipient. More studies are required to clarify the particularities of vitamin D metabolism further and define the adequate 25(OH)D concentrations throughout pregnancy.

Created by admin. Last Modification: Saturday October 26, 2019 15:31:16 GMT-0000 by admin. (Version 4)

Attached files

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11352 PTB.jpg admin 07 Feb, 2019 11:47 37.88 Kb 270
11351 preterm 3X.pdf PDF 2018 admin 07 Feb, 2019 11:46 704.50 Kb 299
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