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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Public Service Announcement: "Piss Poor" Direct RIA fT measurement (HELP is on the way)
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<blockquote data-quote="tareload" data-source="post: 223960"><p>Mixture of endogenous production and exogenous T data points. Sorry I don't have more direct (analogue) data points. All Labcorp:</p><p></p><p>[ATTACH=full]21817[/ATTACH]</p><p></p><p></p><p>[ATTACH=full]21818[/ATTACH]</p><p></p><p>[ATTACH=full]21819[/ATTACH]</p><p></p><p>First plot: direct fT ("analogue") transform vs TT is quite linear. cFTZ also has about the same correlation coefficient (R2). cFTV much lower R2,</p><p></p><p>2nd plot is calculated %fT vs SHBG. </p><p></p><p>As shown previously, estimated %fT from cFTV much more sensitive to SHBG than cFTZ.</p><p></p><p>%fT estimated from direct fT transform much flatter vs SHBG (~2%). </p><p></p><p></p><p><img src="https://www.excelmale.com/forum/attachments/1646243210212-png.20038/" class="bbImage" alt="" data-url="https://www.excelmale.com/forum/attachments/1646243210212-png.20038/" style="" /></p></blockquote><p></p>
[QUOTE="tareload, post: 223960"] Mixture of endogenous production and exogenous T data points. Sorry I don't have more direct (analogue) data points. All Labcorp: [ATTACH type="full" alt="1652721959514.png"]21817[/ATTACH] [ATTACH type="full" alt="1652721993814.png"]21818[/ATTACH] [ATTACH type="full" alt="1652722035612.png"]21819[/ATTACH] First plot: direct fT ("analogue") transform vs TT is quite linear. cFTZ also has about the same correlation coefficient (R2). cFTV much lower R2, 2nd plot is calculated %fT vs SHBG. As shown previously, estimated %fT from cFTV much more sensitive to SHBG than cFTZ. %fT estimated from direct fT transform much flatter vs SHBG (~2%). [IMG]https://www.excelmale.com/forum/attachments/1646243210212-png.20038/[/IMG] [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Public Service Announcement: "Piss Poor" Direct RIA fT measurement (HELP is on the way)
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