قالب وردپرس درنا توس
Home https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Health https://server7.kproxy.com/servlet/redirect.srv/sruj/smyrwpoii/p2/ Fluoridated Water During Pregnancy Related to Lower IQ, A Study Posted by JAMA Pediatrics Says

Fluoridated Water During Pregnancy Related to Lower IQ, A Study Posted by JAMA Pediatrics Says



An influential medical journal published a study on Monday that linked fluoride consumption during pregnancy to a lower childhood IQ – a finding that could undermine decades of public health messages, inflame conspiracy theorists and conspiracy theorists alarming mothers. The study was expected to be so controversial that JAMA Pediatrics included a note from an editor saying that its decision to publish was not easy and subject to "additional scrutiny".

"This is the only editor's note I have written," said Dimitri Kristakis, editor-in-chief of JAMA Pediatrics and a pediatrician, before The Daily Beast. "There was concern about the editorial staff of the magazine. this will play out in the public eye and what the public health consequences will be. "

About three-quarters of the US drink fluoridated tap water ̵

1; which the US Centers for Disease Control and Prevention announces as one of the 10 largest achievements in public health of the 20th century, as drastically n

Six earlier studies suggest that prenatal fluoride exposure may affect neurodevelopment, but many experts consider you to be non-standard.

A new study, reviewed by a leading medical publisher in the US, is considered more rigorously, although some experts find it unconvincing, saying that the results are statistically marginal and the methodology is wrong.

"When we started through in this area, we were told that fluorine was safe and effective in pregnancy," said study co-author Christine Till of York University of Toronto. "But when we looked for evidence that suggested it was safe, we did not find any studies done on pregnant women."

They hire 512 pregnant women from six Canadian cities and measure their exposure in several ways: analyzing the amount of fluoride in urine them; looking at how much tap water and tea they drank; and comparing the concentration of fluoride in drinking water in the community.

Then, when women's children were 3 or 4 years old, researchers put their IQ tests and cut the numbers down to see if they could find any trends.

"We saw an association between prenatal fluoride exposure and lower IQ scores in children," says study author Rivki Green.

In particular, they found an increase in urinary fluoride concentration of 1 mg per liter associated with a decrease in IQ of 4.5 points among boys – although not girls. Another translation: The boys of the mothers with the highest fluoride in the urine have an IQ of about 3 points lower than the boys of the mothers with the least amount.

Although the study's critics point to different gender results as a red flag, when researchers measure fluoride exposure by examining fluid intake in women, they find a lower IQ in boys and girls. An increase of 1 mg per day was associated with an intelligence deficit of 3.7 points in both.

While medical organizations do not advise pregnant women to avoid fluoridated water – and the study has no implications for the use of fluoride after birth – Green believes the results are significant enough to warrant a change in behavior.

"What we recommend is to reduce fluoride uptake during pregnancy," she said.

" My initial inclination was, 'What the hell? ""

JAMA Pediatrics Editor in Chief Dimitri Kristakis

Prior to the publication, the study was subjected to two statistical reviews, with the researchers combining the data to make sure the results were not distorted by the education of mothers, income levels or other factors. [19659002] The findings were astonishing for the editors of JAMA who throughout their medical training were told that fluoridation was completely safe and that opponents were winged nuts relying on "junk science".

"When I first saw this title, my initial inclination was 'What the hell?'" Kristakis said in a podcast on JAMA . "For me, before there were anti-vaccimers, there was some anti-fluoride."

In fact, fluoride has been a boom in conspiracy environments for decades. When water fluoridation became widespread in the United States in the 1950s, some claimed it was a Soviet conspiracy to physically and mentally weaken Americans. The far-right John Birch Society, among others, has accused the US government of using fluoride to introduce socialism, a conspiracy theory famously satirized in Stanley Kubrick's 1964 film by Dr. Strangelove.


Source link