Evidence map›Paper›PMID 40361043›Full record

ArticleBMC public health2025

Temperature change and male infertility prevalence: an ecological study.

Jiahua Qian, Chunbao Mo, Yuhe Si, Qianqian Zhang, Yihao Chen, Jiayu Zhu, Yifei Wang, Jianxiong Ma

Abstract read
In one paragraph

Article in BMC public health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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

5 citing papers in PubMed.

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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

8 authors.

Jiahua Qian *Department of Nephrology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310006, Zhejiang, China.
Chunbao Mo *Reproductive Medicine, Guangxi Medical and Health Key Discipline Construction Project, The Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, 533000, Guangxi, China.
Yuhe SiDepartment of Nephrology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310006, Zhejiang, China.
Qianqian ZhangDepartment of Nephrology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310006, Zhejiang, China.
Yihao ChenThe Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
Jiayu ZhuThe Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
Yifei WangDepartment of Nephrology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310006, Zhejiang, China. wangyifei0416@163.com.
Jianxiong MaDepartment of Nephrology, the First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, 310006, Zhejiang, China. daxiong1990@zcmu.edu.cn.

Funding

China Postdoctoral Science Foundation 2023M743146Postdoctoral Fellowship Program of CPSF GZC20232373Young Elite Scientists Sponsorship Program by CACM CACM-2022-QNRC2-A01Zhejiang Chinese Medical University Scientific Research Project for Talent 2023RCZXZK47Zhejiang Provincial Natural Science Foundation of China MS25H270044
6 · The paper itself

Abstract

backgroundAlthough the effects of climate change on human health are widely recognized, its potential role in male infertility prevalence has not been thoroughly examined. This study seeks to explore the association between changes in ambient temperature and the prevalence of male infertility.

methodsThis ecological study encompassed 174 countries and regions. We utilized data from 2000 to 2019 on the age-standardized prevalence rate (ASPR) of male infertility and ambient temperature to assess their potential association. The analysis accounted for several covariates, including the Sociodemographic Index (SDI), continent, smoking prevalence, alcohol consumption per capita (APC), nitrogen dioxide (NO₂), and ozone (O₃). Annual temperature values were derived by averaging monthly temperatures, and the deviance percentage of temperature (DPT) was computed based on the 20-year mean temperature. To examine spatial and nonlinear relationships between temperature and male infertility ASPR, we applied the geographic detector approach and Restricted Cubic Spline (RCS) curves. Furthermore, linear mixed-effects models were employed to quantify the association between DPT and male infertility ASPR, and adjusted models were subsequently used to forecast changes in ASPR under projected temperature scenarios for 2020-2030.

resultsFrom 2000 to 2019, a spatial association was identified between temperature and the ASPR of male infertility. Additionally, a U-shaped correlation emerged, indicating the lowest ASPR at 15.7 °C. Higher DPT were linked to elevated male infertility ASPR, with an adjusted β estimate of 38.770 (95% CI: 8.392, 69.162). Projections suggest that ongoing temperature increases may continue to drive up male infertility ASPR.

conclusionTemperature change may be associated with an increased male infertility prevalence.

Indexed as

Climate ChangeInfertility, MaleTemperatureAdultHumansMalePrevalenceClimate changeEcological studyMale infertilityReproductive health

Identifiers

PMID40361043
PMCPMC12070785

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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.