Evidence map›Paper›PMID 27099345›Full record

ReviewAmerican journal of men's health2017

The Disappearing Sperms: Analysis of Reports Published Between 1980 and 2015.

Pallav Sengupta, Sulagna Dutta, Elzbieta Krajewska-Kulak

Abstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in American journal of men's health, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 3 pooled it
–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

66 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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  17. The protective effect ofJournal of advanced veterinary and animal research · 2024
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6 more citing papers are in PubMed but not listed here.

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

3 authors.

Pallav Sengupta1 Lincoln University College, Petaling Jaya, Malaysia.
Sulagna Dutta2 Ex-guest Teacher, Serampore College, University of Calcutta, Kolkata, West Bengal, India.
Elzbieta Krajewska-Kulak3 Medical University of Bialystok, Bialystok, Poland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Reports regarding the changes in sperm concentration in different counties of the world are inconsistent. Furthermore, the reports that sprung up from specific epidemiological and experimental examinations did not include data of prior studies or geographical variations. The current study, following a previous report of massive fall in semen volume over the past 33 years, attempts to delineate the trend of altering sperm concentrations and factors responsible for this by reviewing article published from 1980 to July 2015 with geographic differences. The current study identified an overall 57% diminution in mean sperm concentration over the past 35 years ( r = -.313, p = .0002), which, when analyzed for each geographical region, identified a significant decline in North America, Europe, Asia, and Africa. An increasing trend of sperm concentration was identified only in Australia. The association of male age with such a trend ( R

Indexed as

Global HealthHumansMaleSemen AnalysisSperm Countsemen qualitysperm concentrationsperm count

Identifiers

PMID27099345
PMCPMC5675356

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.