ArticleCirculation2025
Joint Exposure to Ozone and Temperature and Acute Myocardial Infarction Among Adults Aged 18 to 64 Years in the United States.
Article in Circulation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 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
2 citing papers in PubMed.
- Short-Term Exposure to Ambient Ozone and Fine Particulate Matter and Its Components Increases the Risk of In-Hospital Adverse Outcomes in Patients With Acute Myocardial Infarction: A Time-Stratified Case-Crossover Study.Journal of the American Heart Association · 2026Article
- Impact of short-term exposure to ambient air pollution on cardiovascular disease outpatient visits: a time-series study in Yichang, China.Environmental health : a global access science source · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors.
Funding
Abstract
backgroundPrevious research suggests that exposures to air pollution and nonoptimal temperatures are associated with a higher risk of acute myocardial infarction (AMI), but few studies examined the exposures jointly. Furthermore, moderate exposures were often overlooked. We evaluated short-term exposure to ambient ozone pollution and ambient temperature jointly and over the entire range of exposures, with the occurrence of AMI among adults aged 18 to 64 years (an understudied population) in the contiguous United States.
methodsWe identified eligible individuals with incident AMI insured by a nationwide private insurance company from 2016 to 2020. We designed a time-stratified case-crossover study in which each patient's ambient exposure to ozone and temperature on the day of their AMI was compared with their exposures on a nearby day. We used a 2-stage model to investigate the associations with joint exposures: (1) fitting climate region-specific models with statistical interaction terms between ozone and temperature, and (2) using a multivariate random-effects meta-analysis to pool the region-specific estimates.
resultsWe included 270 123 adults with incident AMI and observed a significant association between joint ozone-temperature exposures and increased AMI. Compared with the reference of ozone at 35 ppb and temperature at the first percentile, joint exposure to ozone at 60 ppb and temperature at the 95th percentile at lag 0 day was associated with a 33% (95% CI, 16%-51%) increase in incident AMI, and joint exposure to ozone at 50 ppb and temperature at the median was associated with a 15% (95% CI, 4%-28%) increase. There was heterogeneity by sex, with women showing increased odds when both ozone and temperature were high and men showing increased odds when either ozone or temperature was high.
conclusionsJoint exposure to ozone pollution and high temperature increased the probability of AMI among younger adults, even when one of the exposures was moderate. This study highlights the importance of addressing exposures to ozone and nonoptimal temperature simultaneously in AMI prevention strategies.
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.