ReviewIranian Red Crescent medical journal2015
Air pollution and quality of sperm: a meta-analysis.
Review in Iranian Red Crescent medical journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 5 of them syntheses 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
27 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Current risk factors for male infertility and semen parameters: an umbrella review of systematic reviews and meta-analyses.Asian journal of andrology · 2026Pooled it
- Does outdoor air pollution cause poor semen quality? A systematic review and meta-analysis.BMC urology · 2025Pooled it
- The Prevalence of Complementary and Alternative Medicine Use among Infertile Patients: A Global Systematic Review and Meta-Analysis.International journal of fertility & sterility · 2024Pooled it
- Does air pollution exposure affect semen quality? Evidence from a systematic review and meta-analysis of 93,996 Chinese men.Frontiers in public health · 2023Pooled it
- Association between exposure to ambient air pollution and semen quality in adults: a meta-analysis.Environmental science and pollution research international · 2022Pooled it
- Machine Learning Evaluation of Semen Analysis Could Reveal New Infertility-Related Markers: A Pilot Study.The world journal of men's health · 2026Article
- Decrease or increase in sperm concentration? The data among fertile Chinese males in 40 years.Journal of assisted reproduction and genetics · 2025Article
- The consequences of climate change and male reproductive health: A review of the possible impact and mechanisms.Biochemistry and biophysics reports · 2025Review
- Male aging in germ cells: What are we inheriting?Genetics and molecular biology · 2025Article
- Impact of air pollution and heavy metal exposure on sperm quality: A clinical prospective research study.Toxicology reports · 2024Article
- Article
- Phytochemical Evaluation ofAntioxidants (Basel, Switzerland) · 2024Article
- Implications of Exposure to Air Pollution on Male Reproduction: The Role of Oxidative Stress.Antioxidants (Basel, Switzerland) · 2024Review
- Hormonal Injustice: Environmental Toxicants as Drivers of Endocrine Health Disparities.Endocrinology and metabolism clinics of North America · 2023Review
- Effects of the low-carb organic Mediterranean diet on testosterone levels and sperm DNA fragmentation.Current research in food science · 2023Article
- Using Non-Invasive Methods to Choose Gender; Sex Selection with Diet and Determination of Ovulation Time in Iran.Iranian journal of public health · 2022Article
- Association of Exposure to Particulate Matter Air Pollution With Semen Quality Among Men in China.JAMA network open · 2022Article
- Complementary and alternative medicine use in infertility: A review of infertile women's needs.Journal of education and health promotion · 2022Review
- Impact of Heavy Metals on Human Male Fertility-An Overview.Antioxidants (Basel, Switzerland) · 2021Review
- Ambient sulfur dioxide could have an impact on testicular volume from a observational study on a population of infertile male.BMC urology · 2020Observational
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
contextAir pollution is common in all countries and affects reproductive functions in men and women. It particularly impacts sperm parameters in men. This meta-analysis aimed to examine the impact of air pollution on the quality of sperm. EVIDENCE ACQUISITION: The scientific databases of Medline, PubMed, Scopus, Google scholar, Cochrane Library, and Elsevier were searched to identify relevant articles published between 1978 to 2013. In the first step, 76 articles were selected. These studies were ecological correlation, cohort, retrospective, cross-sectional, and case control ones that were found through electronic and hand search of references about air pollution and male infertility. The outcome measurement was the change in sperm parameters. A total of 11 articles were ultimately included in a meta-analysis to examine the impact of air pollution on sperm parameters. The authors applied meta-analysis sheets from Cochrane library, then data extraction, including mean and standard deviation of sperm parameters were calculated and finally their confidence interval (CI) were compared to CI of standard parameters.
resultsThe CI for pooled means were as follows: 2.68 ± 0.32 for ejaculation volume (mL), 62.1 ± 15.88 for sperm concentration (million per milliliter), 39.4 ± 5.52 for sperm motility (%), 23.91 ± 13.43 for sperm morphology (%) and 49.53 ± 11.08 for sperm count.
conclusionsThe results of this meta-analysis showed that air pollution reduces sperm motility, but has no impact on the other sperm parameters of spermogram.
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