Evidence map›Paper›PMID 36028265›Full record

ArticleBMJ open2022

Association of occupations with decreased semen quality in eastern China: a cross-sectional study of 12 301 semen donors.

Feng Tang, Zhaoqiang Jiang, Mingying Jin, Huiqiang Sheng, Lingfang Feng, Junfei Chen, Yongxin Li, Jing Huang, Ling Xu, Jianlin Lou

Abstract read
In one paragraph

Article in BMJ open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Article
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

10 authors.

Feng Tang *Human Sperm Bank, Zhejiang Mater Child and Reproductive Health Center, Hangzhou, Zhejiang, China.
Zhaoqiang Jiang *School of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Mingying JinSchool of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Huiqiang ShengHuman Sperm Bank, Zhejiang Mater Child and Reproductive Health Center, Hangzhou, Zhejiang, China.
Lingfang FengSchool of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Junfei ChenSchool of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Yongxin LiSchool of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Jing HuangSchool of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Ling XuHuman Sperm Bank, Zhejiang Mater Child and Reproductive Health Center, Hangzhou, Zhejiang, China jianlinlou@163.com xly166@126.com.
Jianlin LouSchool of Public Health, Hangzhou Medical College, Hangzhou, Zhejiang, China jianlinlou@163.com xly166@126.com.ORCID 0000-0002-4052-7865

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study aims to examine the association between occupational factors and semen quality in semen donors in eastern China.

methodsWe recruited 12 301 semen donors from 2006 to 2020 as the studying population. A self-designed questionnaire was applied for collecting lifestyle and work style information. Semen samples were analysed according to WHO guidelines. A crude and adjusted linear regression model was used to analyse the association between occupational factors and semen quality.

resultsCollege students accounted for 36.2% of all semen donors. The majority (81.3%) of semen donors were between 18 year and 30 years. Soldiers or the police had the highest semen volume (the median value=3.8 mL), however, they had the lowest sperm concentration (53.6×10

conclusionOur study indicated that sedentary work style and intensive sports in certain professions might be associated with decreased semen quality. We reported evidence of becoming unemployed on the damage to semen quality. Hence, we advocate a healthy work style to improve semen quality in eastern China.

Indexed as

Semen AnalysisSperm MotilityChinaCross-Sectional StudiesHumansMaleOccupationsSemenSpermatozoaSperm CountTissue DonorsEpidemiologyMale infertilityOCCUPATIONAL & INDUSTRIAL MEDICINEREPRODUCTIVE MEDICINE

Identifiers

PMID36028265
PMCPMC9422844

What OpenQuestion holds

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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.