ArticleJournal of assisted reproduction and genetics2021
Sperm donor lifestyle survey: modifiable risk factors for potential sperm donors.
Article in Journal of assisted reproduction and genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effects of Sleep Disorders and Circadian Rhythm Changes on Male Reproductive Health: A Systematic Review and Meta-analysis.Frontiers in physiology · 2022Pooled it
- Associations of Lifestyle Factors with Cadmium and Nickel in Seminal Fluid of Potential Sperm Donors.Biological trace element research · 2026Article
- Relationship Between Quality of Reproductive Life and Semen Quality: The Moderating Roles of Social Support and Fertility Stress.Archives of sexual behavior · 2025Article
- Association of diet and lifestyle factors with semen quality in male partners of Chinese couples preparing for pregnancy.Reproductive health · 2023Article
- Semen Quality Following Long-term Occupational Exposure to Formaldehyde in China.JAMA network open · 2022Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
objectivesTo examine the association between modifiable lifestyle factors and the main semen parameter values, the number of qualified sperm donors, and to provide some sensible guidance for sperm donors.
methodsHealthy men screened as potential sperm donors were recruited in the Hunan Province Human Sperm Bank of China from March 2019 to December 2019. Participants were invited to complete interviewer-assisted questionnaires on eleven items of information. Univariate and multivariate analyses were conducted to analyze which lifestyle factors collected by the questionnaire had an impact on the eligibility and main semen parameters of sperm donors.
resultsThe eligibility of men as sperm donors was strongly influenced by the duration of abstinence (P = 0.002). The rate of eligibility sperm donors increased significantly with the number of days of abstinence. In addition, semen volume increased with abstinence time (P = 0.000). Exercise frequency (P = 0.025) and abstinence time (P = 0.000) were positively correlated with sperm concentration, and masturbation frequency was negatively correlated with sperm concentration (P = 0.013). Progressive sperm motility was significantly affected by abstinence time (P = 0.000) and bedtime (P = 0.047).
conclusionsAbstinence time was highly associated with semen parameters and donor qualification. Increase the abstinence time before donation may be meaningful in improving the proportion of eligible sperm donors.
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Registered trials
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