Reply to FDA removed black box warning for HRT

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Reply to "FDA removed black box warning for HRT"

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[quote=Anonymous][quote=Anonymous][quote=Anonymous]For those who want data and official medical positions, here's some research on HRT and type 2 diabetes. Summarizing, it shows that across multiple large randomized trials and meta-analyses, HRT with estrogen (with or without progestin) reduces the risk of developing type 2 diabetes on the order of 20–30% and improves insulin resistance and glucose control:

Margolis KL et al., Diabetologia 2004 — 15,641 postmenopausal women randomized and placebo controlled: https://link.springer.com/article/10.1007/s00125-004-1448-x

Mauvais-Jarvis et al. 2017 – Endocrine Reviews
https://academic.oup.com/edrv/article/38/3/173/3063786

Note that HRT does not have an FDA-approved prevention indication.

The North American Menopause Society in their 2022 position statement said that they do NOT recommend starting HRT primarily to prevent diabetes, but that a diabetes-preventive effect is a real, evidence-based benefit in appropriate women (younger, early postmenopause): https://pubmed.ncbi.nlm.nih.gov/35797481/
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Sure. But since we are being so detailed about the absolute of HRT it is also important to be detailed about the absolute benefits: “The cumulative incidence of treated diabetes was 3.5% in the hormone therapy group and 4.2%”

So there was 0.7% fewer diabetes cases in the HRT group. Hardly a stunning number on an individual level. These findings are probably most important to conclude that a woman with diabetes or at risk of it can take HRT without a negative impact on diabetes. [/quote]

Correct, the absolute difference was 0.7%. 
That represents a 21% reduction in diabetes risk relative to the placebo -- that's the real effect.

Note that the data were from the WHI, which had an average age of 63, and enrolled many women who were more than 10 years post menopause. The effect would likely be larger among women <60 but we don't have that data.

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