ArticleAsian journal of andrology
The reference values for semen parameters of 1213 fertile men in Guangdong Province in China.
Article in Asian journal of andrology. 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
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
10 citing papers in PubMed.
- New Insight Into Male Infertility: Deviation From Basic Tenets of Life.Oxidative medicine and cellular longevity · 2026Review
- Spatiotemporal trends in human semen quality.Nature reviews. Urology · 2022Review
- The statistical foundation of the reference population for semen analysis included in the sixth edition of the WHO manual: a critical reappraisal of the evidence.Human reproduction (Oxford, England) · 2022Article
- Evolution of the World Health Organization semen analysis manual: where are we?Nature reviews. Urology · 2022Review
- Basic Phenotyping of Male Fertility from 2019 to 2020 at the Human Sperm Bank of Fudan University.Phenomics (Cham, Switzerland) · 2022Article
- Regional and ethnic differences in semen quality and reproductive hormones in Russia: A Siberian population-based cohort study of young men.Andrology · 2021Article
- Seminal profile of 23,504 patients over the years: 7 years of experience.JBRA assisted reproduction · 2018Article
- Is semen analysis without strict criteria misleading decisions in IVF? A prospective systematic study.International journal of reproductive biomedicine · 2018Article
- The Disappearing Sperms: Analysis of Reports Published Between 1980 and 2015.American journal of men's health · 2017Review
- Decline in semen concentration of healthy Chinese adults: evidence from 9357 participants from 2010 to 2015.Asian journal of andrologyArticle
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
No grant is acknowledged in the PubMed record.
Abstract
Semen samples were collected from 1213 fertile men whose partners had a time-to-pregnancy (TTP) ≤12 months in Guangdong Province in Southern China, and semen parameters including semen volume, sperm concentration, total counts, motility, and morphology were evaluated according to the World Health Organization (WHO) 2010 guideline. All semen parameters analyzed were normal in ~62.2% of the total samples, whereas ~37.8% showed at least one of the semen parameters below normal threshold values. The fifth centiles (with 95% confidence intervals) were 1.3 (1.2-1.5) ml for semen volume, 20 × 10 6 (18×10 6 -20×10 6 ) ml-1 for sperm concentration, 40 × 10 6 (38×10 6 -44×10 6 ) per ejaculate for total sperm counts, 48% (47%-53%) for vitality, 39% (36%-43%) for total motility, 25% (23%-27%) for sperm progressive motility, 5.0% (4%-5%) for normal morphology. The pH values ranged from 7.2 to 8.0 with the mean ± standard deviation at 7.32 ± 0.17. No effects of age and body mass index were found on semen parameters. Occupation, smoking and alcohol abuse, varicocele appeared to decrease semen quality. Sperm concentration, but not sperm morphology, is positively correlated with TTP, whereas vitality is negatively correlated with TTP. Our study provides the latest reference values for the semen parameters of Chinese fertile men in Guangdong Province, which are close to those described in the new WHO guidelines (5 th Edition).
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.