Antenatal exposure to solar radiation and learning disabilities: Population cohort study of 422,512 children
Scientific Reports volume 9, Article number: 9356 (2019)
Claire E. Hastie, Daniel F. Mackay, Tom L. Clemens, Mark P. C. Cherrie, Albert King, Chris Dibben & Jill P. Pell
It is extremely important to get Sun, UVB, or at least Vitamin D before and during pregnancies
Note: This study is based on maxium possible ambient UVB during pregnancies and NOT
1) How much UVB was stopped by air pollution
2) How much UVB was stopped by clouds
3) How much UVB was stopped by clothes
4) How much much UVB was stopped by dark skin color
5) How much Vitamin D was lost due to obesity
- Low Vitamin D if low UV (Pregnant Japanese, 2012) – March 2019
- Conception in winter increases rate of Autism, learning disabilities, dyslexia – Oct 2016
- Poor cognition 26 percent more likely if low Vitamin D (29 studies) – meta-analysis July 2017
ADHD
- ADHD, Autism, Early Psychosis and Omega-3 – review Dec 2017
- ADHD 2 times more likely if poor Omega-6 to Omega-3 ratio – meta-analysis May 2016
- ADHD decreased by 11% for each 10 ng increase in vitamin D in early pregnancy – April 2015
- Increased risk of ADHD (28 pct.) and Autism (58 pct.) if low vitamin D during pregnancy – meta-analysis Jan 2019
Autism
- Autism risk reduced 2X by prenatal vitamins (Vitamin D or Folic) – Feb 2019
- Autism is the least in regions having the most sunshine (and vitamin D) – Nov 2017
- Health problems are related to birth month - June 2015
- Vitamin D and autism - treat: 300 IU per kg per day, prevent: during pregnancy 5,000 IU – Feb 2017
Birth Month
- Season of Birth category listing has
47 items along with related searches - Diseases correlated to month of birth – 2008 has the following chart
Brain Development starts in first trimester
Ensure a healthy pregnancy and baby - take Vitamin D before conception has the following
 Download the PDF from VitaminDWiki
Raw Data
First Timester portion of UVB table with annotations
Entire UVB Chart
Learning disability varies by month of conception. The underlying mechanism is unknown but vitamin D, necessary for normal brain development, is commonly deficient over winter in high latitude countries due to insufficient ultraviolet radiation. We linked the 2007–2016 Scottish School Pupil Censuses to Scottish maternity records and to sunshine hours and antenatal ultraviolet A/B radiation exposure derived from weather stations and satellites respectively. Logistic regression analyses were used to explore the associations between solar radiation, then ultraviolet B, and learning disabilities, adjusting for the potential confounding effects of month of conception and sex. Of the 422,512 eligible, singleton schoolchildren born at term in Scotland, 79,616 (18.8%) had a learning disability. Total antenatal sunshine hours (highest quintile; adjusted OR 0.89; 95% CI: 0.86, 0.93; p < 0.001) and ultraviolet B exposure (highest quintile; adjusted OR 0.55; 95% CI: 0.51, 0.60; p < 0.001) were inversely associated with learning disabilities with evidence of a dose-relationship. The latter association was independent of ultraviolet A exposure. Significant associations were demonstrated for exposure in all three trimesters. Low maternal exposure to ultraviolet B radiation may play a role in the seasonal patterning of learning disabilities. Further studies are required to corroborate findings and determine the effectiveness of supplements.
No statisitically significant relationship between low 1st trimester D levels and Leaning disorders - Sept 2021
Prenatal Vitamin D Levels in Maternal Sera and Offspring Specific Learning Disorders
 Download the PDF from VitaminDWiki
1996, only about 10% had > 30 ngLittle sun in first trimester, 2.9 X more likely to have learning disabilities – June 20194480 visitors, last modified 23 Sep, 2021, This page is in the following categories (# of items in each category)Attached files
ID Name Uploaded Size Downloads 16273 Learning disorders.pdf admin 23 Sep, 2021 592.36 Kb 251 12226 LD all trimester.jpg admin 29 Jun, 2019 116.28 Kb 687 12224 Brain development.jpg admin 29 Jun, 2019 59.66 Kb 684 12223 Learning Disabilities.jpg admin 29 Jun, 2019 106.20 Kb 832 12222 Learning vs conception month.jpg admin 29 Jun, 2019 47.24 Kb 709 12221 Antenatal exposure to solar radiation and learning disabilities - 2019.pdf admin 29 Jun, 2019 878.59 Kb 629