Evidence map›Paper›PMID 37051068›Full record

ReviewFrontiers in cardiovascular medicine2023

A systematic review and meta-analysis of cold exposure and cardiovascular disease outcomes.

Jie-Fu Fan, Yu-Chen Xiao, Yi-Fei Feng, Lu-Yu Niu, Xing Tan, Jia-Cen Sun, Yue-Qi Leng, Wan-Yang Li, Wei-Zhong Wang, Yang-Kai Wang

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in cardiovascular medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 4 pooled it
13.8field-weighted citation impact, top 1% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 4 syntheses or guidelines pooled it, 88 citations in OpenAlex.

  1. Building the model: a review of input structures in extreme temperature-health.Environmental health : a global access science source · 2026
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  5. Lack of guidelines for cold exposure among vulnerable outdoor workers.International journal of circumpolar health · 2026
    Review
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  12. Joint effects of PMScientific reports · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 1 institution in 1 country.

Jie-Fu FanDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Yu-Chen XiaoDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Yi-Fei FengDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Lu-Yu NiuDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Xing TanDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Jia-Cen SunDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Yue-Qi LengDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Wan-Yang LiDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Wei-Zhong WangDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Yang-Kai WangDepartment of Marine Biomedicine and Polar Medicine, Naval Medical Center of PLA, Naval Medical University (Second Military Medical University), Shanghai, China.
Second Military Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Cold exposure has been considered an essential risk factor for the global disease burden, while its role in cardiovascular diseases is still underappreciated. The increase in frequency and duration of extreme cold weather events like cold spells makes it an urgent task to evaluate the effects of ambient cold on different types of cardiovascular disease and to understand the factors contributing to the population's vulnerability. Methods: In the present systematic review and meta-analysis, we searched PubMed, Scopus, and Cochrane. We included original research that explored the association between cold exposure (low temperature and cold spell) and cardiovascular disease outcomes (mortality and morbidity). We did a random-effects meta-analysis to pool the relative risk (RR) of the association between a 1°C decrease in temperature or cold spells and cardiovascular disease outcomes. Results: In total, we included 159 studies in the meta-analysis. As a result, every 1°C decrease in temperature increased cardiovascular disease-related mortality by 1.6% (RR 1.016; [95% CI 1.015-1.018]) and morbidity by 1.2% (RR 1.012; [95% CI 1.010-1.014]). The most pronounced effects of low temperatures were observed in the mortality of coronary heart disease (RR 1.015; [95% CI 1.011-1.019]) and the morbidity of aortic aneurysm and dissection (RR 1.026; [95% CI 1.021-1.031]), while the effects were not significant in hypertensive disease outcomes. Notably, we identified climate zone, country income level and age as crucial influential factors in the impact of ambient cold exposure on cardiovascular disease. Moreover, the impact of cold spells on cardiovascular disease outcomes is significant, which increased mortality by 32.4% (RR 1.324; [95% CI 1.2341.421]) and morbidity by 13.8% (RR 1.138; [95% CI 1.015-1.276]). Conclusion: Cold exposure could be a critical risk factor for cardiovascular diseases, and the cold effect varies between disease types and climate zones. Systematic Review Registration: https://www.crd.york.ac.uk/PROSPERO, identifier: CRD42022347247.

Indexed as

cardiovascular diseaseclimatecold spelllow temperaturemeta-analysis

Identifiers

PMID37051068
PMCPMC10083291
OpenAlexW4365442748

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.