Evidence map›Paper›PMID 28840338›Full record

ArticleSurgical endoscopy2018

Physiologic and psychological gender differences in bariatric surgery.

Jeanne Kochkodan, Dana A Telem, Amir A Ghaferi

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Surgical endoscopy, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 3 pooled it
5.5field-weighted citation impact, top 4% 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

79 citing papers in PubMed, 3 syntheses or guidelines pooled it, 129 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review: Sex-Specific Aspects in the Bariatric Treatment of Severely Obese Women.International journal of environmental research and public health · 2020
    Pooled it
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  19. Gap of women leadership in global obesity research.Obesity (Silver Spring, Md.) · 2025
    Article
  20. Article

19 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 at 1 institution in 1 country.

Jeanne KochkodanDepartment of Surgery, University of Michigan, Ann Arbor, MI, USA.
Dana A TelemDepartment of Surgery, University of Michigan, Ann Arbor, MI, USA.
Amir A GhaferiDepartment of Surgery, University of Michigan, Ann Arbor, MI, USA. aghaferi@umich.edu.
University of Michigan–Ann Arbor · US

Funding

Organizational Dynamics and Failure to Rescue After Major SurgeryK08HS023621 · AHRQ · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI GHAFERI, AMIR ABBAS · 2015 to 2019
$759k
Agency for Healthcare Research and Quality K08HS02362Agency for Healthcare Research and Quality P30HS024403AHRQ HHS K08 HS023621Patient-Centered Outcomes Research Institute CE-1304-6596
6 · The paper itself

Abstract

backgroundBariatric surgery is a safe and effective treatment for clinically severe obesity, but inequity in male and female utilization is well recognized. Approximately 20% of patients undergoing bariatric surgery are male. This paper aims to describe differences in outcomes by gender and to understand the physiologic and psychological differences that may explain this gender gap.

methodsWe examined 61,708 patients from the Michigan Bariatric Surgery Collaborative (MBSC) undergoing primary bariatric surgery between 2006 and 2016. Clinical data regarding demographics, comorbidities, and outcomes were compared by gender. Preoperative and 1-year postoperative surveys gathered psychological outcomes.

resultsThis cohort was consistent with the national population with approximately 22% male patients. There were several significant differences between males and females at the time of surgery. Males tended to be older, have a higher BMI, be married, have lower self-reported depression scores, and have more comorbidities (all p < 0.05). Postoperatively, males suffered more serious complications than women (2.67 vs. 2.12, respectively, p < 0.05). At 1 year postoperatively, males were significantly more satisfied with their operation despite increased complications, decreased weight loss, and decreased rates of comorbidity resolution as compared to females (all p < 0.05).

conclusionsDespite significantly lower weight loss and increased complication rates, males tend to have markedly higher satisfaction and psychological well-being scores than females. To improve outcomes in males, earlier referral to surgery may help to significantly reduce their risk. Conversely, increased attention to psychological support in the perioperative period for females may lead to improved psychological outcomes (i.e., body image, depression, psychological well-being).

Indexed as

Bariatric SurgeryAge FactorsBody Mass IndexComorbidityDepressionFemaleHumansMaleMichiganMiddle AgedPatient SatisfactionPostoperative ComplicationsSex FactorsWeight LossBariatric surgeryDisparitiesGenderPsychosocial outcomes

Identifiers

PMID28840338
OpenAlexW2747272107

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.