ArticleEpidemiology (Cambridge, Mass.)2015
An even clearer portrait of bias in observational studies?
Article in Epidemiology (Cambridge, Mass.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 9 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed.
- An instrumental variable analysis of body mass index and risk of long-term sick leave: the HUNT Study, Norway.European journal of epidemiology · 2025Article
- Robust Mendelian randomization in the presence of residual population stratification, batch effects and horizontal pleiotropy.Nature communications · 2022Article
- The association between BMI and mortality using early adulthood BMI as an instrumental variable for midlife BMI.Scientific reports · 2018Article
- Education and myopia: assessing the direction of causality by mendelian randomisation.BMJ (Clinical research ed.) · 2018Article
- The effects of prescribing varenicline on two-year health outcomes: an observational cohort study using electronic medical records.Addiction (Abingdon, England) · 2018Observational
- Assessing causal relationships using genetic proxies for exposures: an introduction to Mendelian randomization.Addiction (Abingdon, England) · 2018Article
- How to compare instrumental variable and conventional regression analyses using negative controls and bias plots.International journal of epidemiology · 2017Article
- Adjusting for unmeasured confounding in nonrandomized longitudinal studies: a methodological review.Journal of clinical epidemiology · 2017Review
- Using instrumental variables to disentangle treatment and placebo effects in blinded and unblinded randomized clinical trials influenced by unmeasured confounders.Scientific reports · 2016Article
Corrections and comments
- Comment on
- Erratum issued
Authors and funding
1 author.
Funding
Abstract
PubMed holds no abstract for this paper.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.