Evidence map›Paper›PMID 23909994›Full record

ArticleBipolar disorders2013

The effect of bariatric surgery on psychiatric course among patients with bipolar disorder.

Ameena T Ahmed, E Margaret Warton, Catherine A Schaefer, Ling Shen, Roger S McIntyre

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Bipolar disorders, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
6.1field-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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
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  4. Review
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  9. Article
  10. Review
  11. Bariatric surgery in patients with bipolar spectrum disorders: Selection factors, postoperative visit attendance, and weight outcomes.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2017
    Article
  12. Article
  13. Review
  14. Article
  15. Psychiatric aspects of bariatric surgery.Current opinion in psychiatry · 2014
    Review
  16. Management of obesity in the psychiatrist's office.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2014
    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

5 authors at 2 institutions in 2 countries.

Ameena T AhmedDepartment of Internal Medicine, The Permanente Medical Group, San Francisco.
E Margaret Warton
Catherine A Schaefer
Ling Shen
Roger S McIntyre
Kaiser Permanente · USUniversity of Toronto · CA

Funding

Outcomes of Bariatric Surgery among Patients with Bipolar DisorderR21MH094908 · NIMH · KAISER FOUNDATION RESEARCH INSTITUTE · PI AHMED, AMEENA T · 2011 to 2012
$374k
NIMH NIH HHS 1R21MH094908-01NIMH NIH HHS R21 MH094908
6 · The paper itself

Abstract

objectiveBariatric surgery is the most effective therapy for severe obesity. People with bipolar disorder have increased risk of obesity, yet are sometimes considered ineligible for bariatric surgery due to their bipolar disorder diagnosis. This study aimed to determine if bariatric surgery alters psychiatric course among stable patients with bipolar disorder.

methodsA matched cohort study (2006-2009) with mean follow-up of 2.17 years was conducted within Kaiser Permanente Northern California, a group practice integrated health services delivery organization that provides medical and psychiatric care to 3.3 million people. Participants were 144 severely obese patients with bipolar disorder who underwent bariatric surgery, and 1,440 control patients with bipolar disorder, matched for gender, medical center, and contemporaneous health plan membership. Controls met referral criteria for bariatric surgery. Hazard ratio for psychiatric hospitalization, and change in rate of outpatient psychiatric utilization from baseline to Years 1 and 2, were compared between groups.

resultsA total of 13 bariatric surgery patients (9.0%) and 153 unexposed to surgery (10.6%) had psychiatric hospitalization during follow-up. In multivariate Cox models adjusting for potential confounding factors, the hazard ratio of psychiatric hospitalization associated with bariatric surgery was 1.03 [95% confidence interval (CI): 0.83-1.23]. In fully saturated multivariate general linear models, change in outpatient psychiatric utilization was not significantly different for surgery patients versus controls, from baseline to Year 1 (-0.4 visits/year, 95% CI: -0.5 to 0.4) or baseline to Year 2 (0.4 visits/year, 95% CI: -0.1 to 1.0).

conclusionsBariatric surgery did not affect psychiatric course among stable patients with bipolar disorder. The results of this study suggest that patients with bipolar disorder who have been evaluated as stable can be considered for bariatric surgery.

Indexed as

Treatment OutcomeAdolescentAdultAgedAge FactorsBariatric SurgeryBipolar DisorderCase-Control StudiesCohort StudiesFemaleHospitalizationHumansMaleMiddle AgedObesity, MorbidProportional Hazards Modelsbipolar disorderobesitypsychiatric utilization

Identifiers

PMID23909994
PMCPMC3844030
OpenAlexW1976526542

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.