Evidence map›Paper›PMID 34734234›Full record

ArticleThe American journal of clinical nutrition2022

Male waist circumference in relation to semen quality and partner infertility treatment outcomes among couples undergoing infertility treatment with assisted reproductive technologies.

Haiyang Bian, Lidia Mínguez-Alarcón, Albert Salas-Huetos, David Bauer, Paige L Williams, Irene Souter, Jill Attaman, Jorge E Chavarro, EARTH Study Team

Open access · greenAbstract read
In one paragraph

Article in The American journal of clinical nutrition, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

13 citing papers in PubMed, 21 citations in OpenAlex.

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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

9 authors at 2 institutions in 2 countries.

Haiyang BianDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Lidia Mínguez-AlarcónDepartment of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Albert Salas-HuetosDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.ORCID 0000-0001-5914-6862
David BauerHarvard Extension School, Cambridge, MA, USA.
Paige L WilliamsDepartment of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Irene SouterVincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA.
Jill AttamanVincent Obstetrics and Gynecology, Massachusetts General Hospital and Harvard Medical School, Boston, MA.
Jorge E ChavarroDepartment of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
EARTH Study Team
Harvard University · USBrigham and Women's Hospital · US

Funding

Translational Research Support CoreP30ES000002 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI JAIME ELIZABETH HART · 1985 to 2026
$44.6M
Transgenic CoreP30DK046200 · NIDDK · TUFTS MEDICAL CENTER · PI CORKEY, BARBARA E. · 1992 to 2021
$25.0M
PCBs, Phthalates and Male Reproductive HealthR01ES009718 · NIEHS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI HAUSER, RUSS B · 1999 to 2018
$11.6M
Maternal and Paternal Flame Retardant Exposure, Impact on Fertility and PregnancyR01ES022955 · NIEHS · HARVARD SCHOOL OF PUBLIC HEALTH · PI HAUSER, RUSS B, MEEKER, JOHN D. · 2014 to 2018
$2.9M
NIDDK NIH HHS P30 DK046200NIEHS NIH HHS P30 ES000002NIEHS NIH HHS R01 ES009718NIEHS NIH HHS R01 ES022955NIEHS NIH HHS R01ES022955
6 · The paper itself

Abstract

backgroundMale obesity has been related to poor semen quality and may also have a negative effect on assisted reproductive technologies (ART) outcomes. Whether male waist circumference (WC), as a measure of central obesity, impacts a couple's fertility independently of BMI is unclear.

objectivesTo examine the associations of male WC with semen quality and couples' outcomes of infertility treatment with ART.

methodsCouples presenting to the Massachusetts General Hospital Fertility Center were invited to participate in the study. Between 2009 and 2019, 269 males provided 671 semen samples and 176 couples underwent 317 ART cycles. Height, weight, and WC were measured on site. We analyzed the association of male WC with semen quality and pregnancy outcomes using cluster-weighted regression models to account for repeated observations while adjusting for potential confounders. Models were also stratified by male BMI (<25 kg/m2 compared with ≥25 kg/m2).

resultsThe median male age, WC, and BMI were 36.1 years, 96.0 cm, and 26.8 kg/m2, respectively. A 5-cm increase in WC was associated with a 6.3% (95% CI, 2.1-10.5%) lower sperm concentration after adjustment for potential confounders, including BMI. Male WC was also inversely related to the probability of achieving a live birth. For each 5-cm increase in male WC, the odds of a live birth per initiated cycle decreased by 9.0% (95% CI, 1.1%-16.4%) after accounting for several anthropometric and demographic characteristics of both partners. These associations were stronger among males in the normal BMI category (<25 kg/m2) than among overweight or obese males.

conclusionsA higher male WC may be an additional risk factor for poor outcomes of infertility treatment, even after accounting for male and female partner BMIs, particularly in couples where the male partner has a normal BMI.

Indexed as

InfertilitySemen AnalysisAdultFemaleHumansMaleObesityPregnancyReproductive Techniques, AssistedTreatment OutcomeWaist Circumferencecentral obesityfat distributionin vitro fertilizationmale infertilitypaternal factorsemen quality

Identifiers

PMID34734234
PMCPMC8895222
OpenAlexW3208444182

What OpenQuestion holds

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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.