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Tags · Evidence

confounding

A third variable explaining an apparent association.

48 topics 19 solved Group: Evidence

Research Methods 21 Evidence 16 Data & Tools 11

Related in this group: STEP programme · SURMOUNT programme · SURPASS programme · SELECT trial · FLOW trial · SOUL trial · TRIUMPH programme · PIONEER programme · SUSTAIN programme · LEADER trial · randomised trial · meta-analysis

48 topics · page 2 of 2

Topic	Participants	Replies	Views	Activity
Confounding by indication, explained with a concrete example Evidence › Study critique confounding observational data disputed On the subject in the title: Confounding by indication, explained with a concrete example Working notes rather than a conclusion. Comparing SURMOUNT-1 ( N Engl J Med , 2022) with SURPASS-2 ( N Engl J Med ,…	+21	25	21k	11mo
Immortal time bias in a claims-database study Evidence › Study critique risk of bias observational data disputed confounding Closed 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…	+29	34	28k	11mo
Why most self-reports here are not experiments, and that is fine Research Methods › N-of-1 designs confounding worked example data table effect size Closed Why most self-reports here are not experiments, and that is fine — that is the question, and I have not found it answered plainly anywhere I have looked. I have seen SURPASS-2 ( N Engl J Med , 2021) cited in…		2	46k	11mo
Multiplicity when you track fifteen variables Research Methods › Statistics effect size heterogeneity confounding worked example Solved Multiplicity when you track fifteen variables — setting out what I have, and where I think it stops being reliable. Comparing LEADER ( N Engl J Med , 2016) with SURMOUNT-OSA ( N Engl J Med , 2024) and finding…		2	60k	11mo
About the Datasets category Data & Tools › Datasets data table observational data confounding Pinned Wiki Community-collected datasets, their collection methods, and their limitations. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its author and a…	+6	11	42k	12mo
Regression to the mean in progress reports Research Methods › Statistics number needed to treat heterogeneity confounding effect size On the subject in the title: Regression to the mean in progress reports Working notes rather than a conclusion. Session topic: PIONEER 6 ( N Engl J Med , 2019). Please read it before posting; the discussion…	+30	34	49k	12mo
Whether an aggregate is worth publishing at all: a disputed topic Data & Tools › Datasets confounding site feedback observational data On the subject in the title: Whether an aggregate is worth publishing at all: a disputed topic Working notes rather than a conclusion. I would like to understand what this number means before I repeat it…	+20	24	18k	13mo
A claim built entirely on a subgroup analysis Evidence › Study critique risk of bias observational data confounding disputed Solved A claim built entirely on a subgroup analysis Writing it up because I had to work it out twice and would rather nobody else did. I have seen SUSTAIN 6 ( N Engl J Med , 2016) cited in support of a claim I do…	+71	80	1.1k	14mo
Pre-registering a personal experiment, seriously Research Methods › N-of-1 designs worked example data table effect size confounding Pre-registering a personal experiment, seriously — setting out what I have, and where I think it stops being reliable. Comparing STEP 4 ( JAMA , 2021) with SUSTAIN 6 ( N Engl J Med , 2016) and finding the…	+96	119	58k	14mo
Second pass at: Designing a personal experiment that could change your mind Research Methods › N-of-1 designs worked example effect size confounding data table Solved Second pass at: Designing a personal experiment that could change your mind Writing it up because I had to work it out twice and would rather nobody else did. Session topic: SURPASS-4 ( Lancet , 2021). Please…	+39	44	632	14mo
Critiquing an observational claim about a class effect Evidence › Study critique disputed risk of bias effect size observational data Posting this under the heading it deserves: Critiquing an observational claim about a class effect Everything below is what sits behind that. Session topic: SCALE ( N Engl J Med , 2015). Please read it before…		2	6.9k	14mo
Coming back to: A critique that turned out to be unfair, retracted by its author Evidence › Study critique disputed observational data effect size confounding Closed A critique that turned out to be unfair, retracted by its author — setting out what I have, and where I think it stops being reliable. I have seen STEP 4 ( JAMA , 2021) cited in support of a claim I do not…		2	1.3k	14mo
Criticising the method without criticising the authors Evidence › Study critique disputed observational data confounding effect size Criticising the method without criticising the authors Writing it up because I had to work it out twice and would rather nobody else did. I have seen STEP 1 ( N Engl J Med , 2021) cited in support of a claim…	+55	61	60k	15mo
About the Study critique category Evidence › Study critique risk of bias confounding observational data Pinned Wiki Structured criticism of a specific published study. Criticise the method, not the author. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded with its…		4	114	16mo
Contributing data without breaching anyone's privacy — what changed since Data & Tools › Datasets observational data confounding site feedback data table 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…		2	58k	17mo
Second pass at: Multiplicity when you track fifteen variables Research Methods › Statistics number needed to treat confounding effect size worked example Posting this under the heading it deserves: Second pass at: Multiplicity when you track fifteen variables Everything below is what sits behind that. I have seen SCALE ( N Engl J Med , 2015) cited in support…		2	12k	18mo
Sample size intuition for a personal experiment Research Methods › Statistics number needed to treat heterogeneity confounding effect size On the subject in the title: Sample size intuition for a personal experiment Working notes rather than a conclusion. Session topic: STEP 2 ( Lancet , 2021). Please read it before posting; the discussion is…		4	62k	18mo
A well-designed study with a badly written abstract — does this still hold? Evidence › Study critique disputed confounding risk of bias Solved Closed A well-designed study with a badly written abstract — does this still hold? I have a specific reason for asking rather than idle curiosity, and the context is below. Comparing STEP 1 ( N Engl J Med , 2021)…		2	28k	20mo