The Peptide CommonsEst. May 2024
Independent. We sell nothing and are affiliated with no manufacturer or pharmacy. Every moderation action is logged in public
Topic summary

Contributing data without breaching anyone's privacy

This is a generated summary. It shows the 9 most-liked posts from a topic of 72, in their original order, with the accepted answer included where one exists. It is a reading aid and it will miss nuance — the full topic is the record.
SR
s.roosTL2 Moderator2 Mar 2026#3
c.amankwah, post #1: Contributing data without breaching anyone's privacy Writing it up because I had to work it out twice and would rather nobody else did. I would like to understand what this number means before I repeat it anywhere. A Janoshik report on a retatrutide lot gives 98.1% purity. The supplier certificate for the same lot states 98.8%. Both… Go to post

Community-collected datasets: some members have compiled datasets from their own experience and shared them. They are self-reported, unblinded, and therefore limited as evidence. But they show real patterns that people experience.

27 likes in reply to #1 5mo
MI
m.ilungaTL2 Moderator Solution2 Mar 2026#7
m.ferrand, post #2: the opening post answers the question as asked. The question underneath it is different. For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use. Go to post

Combining data from different sources: datasets from this site are not directly comparable to published trials because the populations are different. They are worth reading separately, not merged together.

7 likes in reply to #2 5mo
KC
k.chukwuTL2 Moderator3 Mar 2026#20
revision_history, post #8: This follows post #5 rather than contradicting it. Bias toward positive outcomes: datasets collected by members are biased toward people who found the compounds useful. People who did not respond do not return. People who had bad outcomes might have left the community. Go to post

Reproducibility: if sharing data, include enough context (compound, dose, timeframe, method) that someone reading it understands what it represents.

27 likes in reply to #8 5mo
NB
n.brobergTL2 Moderator4 Mar 2026#24

Picking up post #21: that is the part I would want checked first.

Collection methods: ask how the data were collected. Longitudinal tracking over months is stronger than retrospective recall. Prospective measurement (done while experiencing something) is stronger than memory afterward.

27 likes 5mo
VK
v.klausenTL3Regular4 Mar 2026#38

Community-collected datasets: some members have compiled datasets from their own experience and shared them. They are self-reported, unblinded, and therefore limited as evidence. But they show real patterns that people experience.

22 likes 5mo
MS
m.silvaTL2 Moderator5 Mar 2026#39

Picking up post #36: that is the part I would want checked first.

For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.

22 likes 5mo
DT
d.tammTL2 Moderator5 Mar 2026#48

Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the kind that comes from remembering a figure instead of looking it up.

24 likes 5mo
AE
a.eriksenTL2 Moderator5 Mar 2026#52

On post #48 — agreed on the reasoning, with one qualification.

How to contribute: if you have longitudinal data you want to add, the format is simple: date, measurement, context. Contact the maintainer of the specific dataset.

26 likes 5mo
ID
il.dumitruTL2 Moderator6 Mar 2026#66

post #65 answers the question as asked. The question underneath it is different.

For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.

30 likes 5mo

Read the full topic (72 posts)

Suggested topics

TopicParticipantsRepliesViewsActivity
Revisiting: Sample size in a voluntary survey: the selection problem
Revisiting: Sample size in a voluntary survey: the selection problem — setting out what I have, and where I think it stops being reliable. Posting the method first, because I know what the first three replies…
RAZAR 2 56k 9mo
Contributing data without breaching anyone's privacy — what changed since
On the subject in the title: Contributing data without breaching anyone's privacy — what changed since Working notes rather than a conclusion. A documentation question rather than an analytical one. I have a…
RIMSBJ 2 58k 17mo
Cleaning a self-reported dataset and what you throw away — what changed since
Posting this under the heading it deserves: Cleaning a self-reported dataset and what you throw away — what changed since Everything below is what sits behind that. Posting the method first, because I know…
HMSCPW 2 2k 1h
A community side-effect dataset, with its response rate and biases
A community side-effect dataset, with its response rate and biases — setting out what I have, and where I think it stops being reliable. Posting the method first, because I know what the first three replies…
SBSPGC 2 5.1k 19h
Aggregated purity results across four services, with caveats — a second dataset
Aggregated purity results across four services, with caveats — a second dataset — setting out what I have, and where I think it stops being reliable. Working through the identity arithmetic and I would like…
CWFNHLTHRE+127 151 42k 10mo

Related topics — sharing the tags data table, confounding, observational data

TopicParticipantsRepliesViewsActivity
List price versus negotiated price versus what you pay
On the subject in the title: List price versus negotiated price versus what you pay Working notes rather than a conclusion. Documenting an access outcome, dated, because everything in this category expires.…
JPJAVFVBCA+99 115 11k 3mo
Area percent versus weight percent: the confusion that causes most arguments — what changed since
Area percent versus weight percent: the confusion that causes most arguments — what changed since Writing it up because I had to work it out twice and would rather nobody else did. Posting the method first,…
VBSADMRLEN+30 34 40k 13mo
Waist circumference technique and its repeatability
Waist circumference technique and its repeatability — setting out what I have, and where I think it stops being reliable. Maintenance rather than loss, which is the part of this that almost nobody writes…
RFBDNKDOCT+55 60 11k 5mo
Shoulders, tangent skims, and defensible integration
Posting this under the heading it deserves: Shoulders, tangent skims, and defensible integration Everything below is what sits behind that. Posting the method first, because I know what the first three…
FWNMGSTNH+16 20 11k 13h
Immortal time bias in a claims-database study
Immortal time bias in a claims-database study — setting out what I have, and where I think it stops being reliable. I have seen FLOW ( N Engl J Med , 2024) cited in support of a claim I do not think it…
MACDSOIDNN+29 34 28k 11mo