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Observational Study
. 2019 Feb;15(2):269-278.
doi: 10.1016/j.soard.2018.12.001. Epub 2018 Dec 6.

A longitudinal examination of suicide-related thoughts and behaviors among bariatric surgery patients

Kathryn H Gordon  1 , Wendy C King  2 , Gretchen E White  2 , Steven H Belle  2 , Anita P Courcoulas  3 , Faith E Ebel  4 , Scott G Engel  5 , Dave R Flum  6 , Marcelo W Hinojosa  6 , Alfons Pomp  4 , Walter J Pories  7 , Dino Spaniolas  7 , Bruce M Wolfe  8 , Susan Z Yanovski  9 , James E Mitchell  5
Affiliations
Observational Study

A longitudinal examination of suicide-related thoughts and behaviors among bariatric surgery patients

Kathryn H Gordon et al. Surg Obes Relat Dis. 2019 Feb.

Abstract

Background: Past research suggests self-harm/suicidality are more common among adults who have undergone bariatric surgery than the general population.

Objectives: To compare prevalence of self-harm/suicidal ideation over time and identify presurgery risk factors for postsurgery self-harm/suicidal ideation.

Setting: The Longitudinal Assessment of Bariatric Surgery-2 is a cohort study with presurgery and annual postsurgery assessments conducted at 10 U.S. hospitals.

Methods: Adults with severe obesity undergoing bariatric surgery between March 2006 and April 2009 (n = 2458). Five-year follow-up is reported. Self-reported history of suicidality assessed retrospectively via the Suicide Behavior Questionnaire-Revised (SBQ-R) and self-reported self-harm/suicidal ideation assessed prospectively via the Beck Depression Inventory-Version 1 (BDI-1).

Results: The SBQ-R was completed by 1540 participants; 2217 completed the BDI-1 pre- and postsurgery. Over 75% of participants were female, with a median age of 46 years and body mass index of 45.9 kg/m2. Approximately one fourth of participants (395/1534) reported a presurgery history of suicidal thoughts or behavior (SBQ-R). The prevalence of self-harm/suicidal ideation (BDI-1) was 5.3% (95% confidence interval [CI], 3.7-6.8) presurgery and 3.8% (95% CI, 2.5-5.1) at year 1 postsurgery (P = .06). Prevalence increased over time postsurgery to 6.6% (95% CI, 4.6-8.6) at year 5 (P = .001) but was not significantly different than presurgery (P = .12).

Conclusions: A large cohort of adults with severe obesity who underwent bariatric surgery had a prevalence of self-harm/suicidal ideation that may have decreased in the first postoperative year but increased over time to presurgery levels, suggesting screening for self-harm/suicidality is warranted throughout long-term postoperative care. Several risk factors were identified that may help with enhanced monitoring.

Keywords: Bariatric surgery; Obesity; Suicidal ideation; Suicide.

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Figures

Figure 1.
Figure 1.
Modeled* Prevalence of Self-harm/Suicidal Ideation in the Past Week, by Time Point.a
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