Evidence map›Paper›PMID 31655977›Full record

ArticleJournal of assisted reproduction and genetics2019

Prediction model for testis histology in men with non-obstructive azoospermia: evidence for a limited predictive role of serum follicle-stimulating hormone.

Ettore Caroppo, Elisabetta M Colpi, Giuseppe D'Amato, Giacomo Gazzano, Giovanni M Colpi

Open access · greenAbstract read
In one paragraph

Article in Journal of assisted reproduction and genetics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Testicular mapping-guided sperm retrievalTranslational andrology and urology · 2024
    Article
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  6. Article
  7. Article
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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

5 authors at 3 institutions in 2 countries.

Ettore CaroppoAsl Bari, Department of Maternal and Child Health, Reproductive and IVF Unit, PTA "F Jaia, 70014, Conversano, BA, Italy. ecaroppo@teseo.it.ORCID https://orcid.org/0000-0001-8411-2736
Elisabetta M ColpiAndrology and IVF Unit, Clinica San Carlo, 20037, Paderno Dugnano, MI, Italy.
Giuseppe D'AmatoAsl Bari, Department of Maternal and Child Health, Reproductive and IVF Unit, PTA "F Jaia, 70014, Conversano, BA, Italy.
Giacomo GazzanoDivision of Anatomic Pathology, Istituto Auxologico Italiano IRCCS, 20100, Milano, Italy.
Giovanni M ColpiAndrology and IVF Unit, Clinica San Carlo, 20037, Paderno Dugnano, MI, Italy.
Ospedale San Carlo · ITConsortium for Sustainable Development of the Andean Ecoregion · PEIRCCS Istituto Auxologico Italiano · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe present prediction model was intended to verify whether serum FSH level could be predictive of testis histology in patients with non-obstructive azoospermia (NOA).

methodsWe evaluated two datasets of patients with NOA: the first (San Paolo dataset) comprising 558 patients, 18-63 years old, the second (Procrea dataset) composed by 143 patients, 26-62 years old; bot datasets were combined to obtain a validation set. Multinomial logistic regression was first run with serum FSH and testis volume as independent predictors of testis histology, then, the correctly classified histological subcategories were set as outcome variables of a prediction model in both development and validation sets.

resultsMultinomial logistic regression showed that FSH was a significant predictor of testis histology in 58% of cases, although it was unable to correctly classify cases with focal SCO or maturation arrest (MA). A prediction model was then run with hypospermatogenesis (HYPO) and Sertoli-only syndrome (SCO) as outcome variables of a binary logistic regression. FSH significantly predicted both HYPO and SCO, with a sensitivity of 40.9 and 80.7 and a specificity of 84.3 and 46.8 respectively. The model showed a fair discriminative ability (ROC AUC 0.705 and 0.709 respectively) and was adequately calibrated.

conclusionsSupported by a robust statistical analysis, we conclude that serum FSH level cannot be considered a prognostic marker of spermatogenic dysfunction in patients with NOA.

Indexed as

AdolescentAdultAzoospermiaFollicle Stimulating HormoneHumansMaleMiddle AgedOligospermiaSpermatozoaSperm RetrievalTestisYoung AdultFollicle Stimulating HormoneFSHNon-obstructive azoospermiaPrediction modelTestis histologyTestis volume

Identifiers

PMID31655977
PMCPMC6911140
OpenAlexW2982164753

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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.