SynthesisMedicine2019
Is low body mass index a risk factor for semen quality? A PRISMA-compliant meta-analysis.
Synthesis in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
What it found
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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
10 citing papers in PubMed.
- Lower Semen Quality Among Men in the Modern Era-Is There a Role for Diet and the Microbiome?Microorganisms · 2025Review
- Review
- Mendelian randomization reveals the impact of diet on infertility in men and women.Frontiers in endocrinology · 2024Article
- The Influence of Metabolic Factors and Diet on Fertility.Nutrients · 2023Review
- Using a Decision Tree Algorithm Predictive Model for Sperm Count Assessment and Risk Factors in Health Screening Population.Risk management and healthcare policy · 2023Article
- An optimal growth pattern during pregnancy and early childhood associates with better fertility in men.European journal of endocrinology · 2022Article
- Obesity-Related Genes Expression in Testes and Sperm Parameters Respond to GLP-1 and Caloric Restriction.Biomedicines · 2022Article
- Risk of somatic diseases in patients with eating disorders: the role of comorbid substance use disorders.Epidemiology and psychiatric sciences · 2022Article
- Caution, "normal" BMI: health risks associated with potentially masked individual underweight-EPMA Position Paper 2021.The EPMA journal · 2021Article
- Online Japanese-Language Information on Lifestyle Factors Associated With Reduced Fertility: Content Analysis.Journal of medical Internet research · 2020Article
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
backgroundMale infertility has become a worldwide public health problem. However, the effect of low body mass index (BMI) is still controversial.
methodsRelevant articles in Pubmed, Embase, Web of science, and Wanfang database published until September 2017 were searched without language restriction. We performed a meta-analysis about low BMI and semen parameters containing total sperm count, concentration, semen volume, and sperm motility (overall and progressive), including 709 men with low BMI and 14,622 men with normal BMI.
resultsThirteen studies were included in this meta-analysis and a total of 15,331 individuals were accumulated. We pooled data from these articles and found standardized weighted mean differences in semen parameters (total sperm count and semen volume) showed significant difference between low BMI and normal BMI.
conclusionsThis systematic review with meta-analysis has confirmed that there was a relationship between low BMI and semen quality, which suggesting low BMI may be a harmful factor of male infertility. Yet lacking of the raw data may influence the accuracy of the results. Further researches are needed to identify the role of underweight in male sterility.
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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.