ArticleEpidemiology (Cambridge, Mass.)2018
Analysis of Observational Self-matched Data to Examine Acute Triggers of Outcome Events with Abrupt Onset.
Article in Epidemiology (Cambridge, Mass.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.
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
29 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Control yourself: ISPE-endorsed guidance in the application of self-controlled study designs in pharmacoepidemiology.Pharmacoepidemiology and drug safety · 2021Pooled it
- Arrhythmia Risk During the 2016 US Presidential Election: The Cost of Stressful Politics.Journal of the American Heart Association · 2021Trial
- Acute exposure to fine ambient particulate matter and pulmonary exacerbations in cystic fibrosis: A case-crossover study.Atmospheric Environment: X · 2026Article
- Risk of hospitalization and mortality across US climate regions following extreme heat exposure in patients with end-stage kidney disease (ESKD) receiving in-center hemodialysis: a space-time-stratified case-crossover analysis.Environmental health : a global access science source · 2025Article
- Reply to DingAmerican journal of respiratory and critical care medicine · 2025Article
- A Comparative Profile of the Burden of Human Metapneumovirus, Respiratory Syncytial Virus, and Influenza in the HIVE Cohort, 2010-2022.The Journal of infectious diseases · 2025Article
- Extreme heat and hospital admissions in older adults: A small-area analysis in the Greater Boston metropolitan area.Environmental epidemiology (Philadelphia, Pa.) · 2025Article
- Compound drought and heatwave extreme weather events: Mortality risk in individuals with chronic respiratory disease.Environmental epidemiology (Philadelphia, Pa.) · 2025Article
- Proposing adjustments to heat safety thresholds for junior high and high school sports clubs in Japan.International journal of biometeorology · 2025Article
- Effects of Extreme Humidity and Heat on Ventricular Arrhythmia Risk in Patients With Cardiac Devices.JACC. Advances · 2025Article
- Exploring the association between herbal medicine usage and drug-induced liver injury: insights from a nationwide population-based cohort study using SCCS in South Korea.Frontiers in pharmacology · 2025Article
- Article
- Evaluating the risk of conflict on recent Ebola outbreaks in Guinea and the Democratic Republic of the Congo.BMC public health · 2024Article
- Risk of fall or fracture with concomitant use of prescription opioids and other medications in osteoarthritis patients.Pharmacoepidemiology and drug safety · 2024Article
- Exploring spatial heterogeneity in synergistic effects of compound climate hazards: Extreme heat and wildfire smoke on cardiorespiratory hospitalizations in California.Science advances · 2024Article
- Associations between Short-Term Exposure to Ambient Air Pollution and Influenza: An Individual-Level Case-Crossover Study in Guangzhou, China.Environmental health perspectives · 2023Article
- Effect of cold winters on the risk of new asthma: a case-crossover study in Finland.Occupational and environmental medicine · 2023Article
- Quality of dental treatments under intravenous sedation among patients with disability: A self-matching study.Journal of dental sciences · 2023Article
- Article
- A tutorial on the case time series design for small-area analysis.BMC medical research methodology · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
Abstract
Several self-matched approaches have been proposed, including case-crossover, case-time control, fixed-effects case-time control, and self-controlled case series. Rather than comparing treatment effects between different individuals, studies use these approaches to evaluate the acute effects of transient exposures, often called "triggers," by comparing outcome risk among the same individual at different times. This eliminates confounding by between-person characteristics that remain stable over time, allowing for valid analyses even in situations where information on some health behaviors is not available, such as long-term smoking history. However, to attain valid results, differences in the probability of exposure and outcome that change over time must be addressed in the design and analysis of the study. In this article, we describe the setting, assumptions and analytic options for conducting studies using self-matched data. Approaches that involve matching or a group of noncases to address time-varying confounding may have less statistical flexibility but they are powerful tools that overcome the need to assume a particular form of any time trends in potential confounders. If data are available for all of the person-time under study, there is a gain in statistical efficiency and the ability to address time-varying confounding using flexible regression models, under the strong assumption of no mis-specification of the model.
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