Thread on the #keirabell judgement and sorry state of evidence-lead health policy in New Zealand.

We have further confirmation that there is no good evidence of benefit from puberty blockers, and significant risks.

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The judges heard evidence for and against, and testimony from former patients. They ruled that puberty blocking is "experimental", with "very limited evidence as to its efficacy"

An unsurprising finding if you're familiar with the literature.

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This is a continuation of the findings from the national health body reviews from Sweden and Finland. Both find that evidence is insufficient.

A review by the Center for Evidence Based Medicine at Oxford University highlighted the "profound scientific ignorance" on the the use of puberty

A 2018 review by an Australian expert group finds that all studies on the psych effects of puberty blockers have a medium or high risk of bias.

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https://t.co/7L5dLrr5Zo