Evidence map›Paper›PMID 35950388›Full record

ArticleBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences2022

[Seasonal variations influenced the semen quality of the sperm donor in Beijing area].

W H Tang, C Y Deng, J M Gao, Z C Luo, H Wu, S L Tian, N Wei, B Li, Q C Zhao, J F Song and 3 more

Abstract read
In one paragraph

Article in Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Article
  2. Seasonal trends in sperm quality in Denmark and Florida.Reproductive biology and endocrinology : RB&E · 2026
    Observational
  3. Review
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

13 authors.

W H TangDepartment of Urology, Peking University Third Hospital, Beijing 100191, China.
C Y DengDepartment of Urology, Peking University Third Hospital, Beijing 100191, China.
J M GaoDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
Z C LuoDepartment of Urology, Peking University Third Hospital, Beijing 100191, China.
H WuDepartment of Urology, Peking University Third Hospital, Beijing 100191, China.
S L TianDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
N WeiDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
B LiDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
Q C ZhaoDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
J F SongDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
L ZhangDepartment of Reproductive Medicine Center, Peking University Third Hospital, Beijing 100191, China.
L L MaDepartment of Urology, Peking University Third Hospital, Beijing 100191, China.
H JiangDepartment of Urology, Peking University Third Hospital, Beijing 100191, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the change trends of sperm quality with seasonal variations among the volunteers of sperm donors in Beijing area, as well as the relationship between two parameters.

methodsSemen data from the volunteers of sperm donors in Human Sperm Bank of Peking University Third Hospital were collected using a retrospective study method. The subjects were divided into 4 seasonal groups based on the lunar solar terms and the time of sperm donation. The data were assessed to find whether there were differences in semen parameters among different seasonal groups, and to analyze the change trends and the influence of seasonal factors on semen parameters.

resultsA total of 21 174 semen parameter data were analyzed. Firstly, to analyze all data as a whole, in spring, summer, autumn and winter groups, sperm concentration was (106.04±59.67)×10

conclusionSeason was the influencing factor of semen quality of sperm donors in Beijing area. We recommend spring and winter may be the preferred seasons for sperm donation.

Indexed as

SemenSemen AnalysisHumansMaleRetrospective StudiesSeasonsSpermatozoaSperm CountSperm MotilitySeasonsSemen qualitySperm countSperm donorsSperm motility

Identifiers

PMID35950388
PMCPMC9385505

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Registered trials

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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.