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c/labresults·posted 1 year ago by u/rina_sobczak

[Results] 7 weeks, 25kg, and Medutest was the hard part

Lab Cold Box ×7 Well Actually ×2

Right, the batch question again, but with numbers this time.

I have 7 data points over 14 weeks. The pattern is consistent enough that I do not think it is chance, and boring enough that nobody is going to screenshot it, which is usually a good sign.

The thing I would flag for anyone new: the effect I am describing showed up at week 87, not week 41. People give up long before the interesting part.

Interested in whether this matches other people's logs or whether I am an outlier.

3,137 up / 560 down85% upvoted40 commentsid 1kdeic13 Nov 2024

40 comments

8 in this archive, depth 4

best — the order this archive was captured in

u/saskia_mwangi278 points·1 year ago·edited

Inter-lab variance on this kind of assay is routinely 1–2 points. Different column, different gradient, different integration.

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u/emil_marchand79 points·1 year ago

the VendorInvestigate and Medutest results differ by 20 points, both inside inter-lab variance

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u/milos_trevino44 points·1 year ago

Not convinced. The evidence does not support that reading.

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u/aksel_jansen0 points·1 year ago

Yeah, the VendorInvestigate number matching the claim is the actual signal.

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u/ffmi_watcher162 points·1 year ago

Yeah, the PeptideMeter number matching the claim is the actual signal.

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[deleted]122 points·1 year ago

[deleted]

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u/slow_logbook_ftw28 points·1 year ago

the VendorInvestigate and PeptideMeter results differ by 2 points, both inside inter-lab variance

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u/gustav_cardoso-21 points·1 year ago

Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.

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A running record of independent test results people paid for themselves. Every post follows the same shape: vendor, product, batch, testing service, method, and the number. Good results and bad results are equally welcome and get equal scrutiny.

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