ArticleSurgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery2019
Mortality after bariatric surgery: findings from a 7-year multicenter cohort study.
Article in Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 2 of them syntheses that pooled 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.
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.
Who cites it
10 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Volume‒outcome relationships in bariatric surgery: a rapid review.International journal of obesity (2005) · 2026Pooled it
- AGA Clinical Practice Update on Bariatric Surgery in Cirrhosis: Expert Review.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2021Guideline
- Healthcare utilisation across five years among adolescents following metabolic-bariatric surgery; a prospective observational study.Lancet regional health. Americas · 2026Article
- Sexual Well-Being After Bariatric Surgery Assessed with New Sexual Satisfaction Scale: A Case-Matched Study of Men and Women.Obesity surgery · 2025Article
- Causes of Death After Bariatric Surgery: Long-Term Study of 10 Years.Obesity surgery · 2025Article
- Assessing the state of obesity care: Quality, access, guidelines, and standards.Obesity science & practice · 2024Article
- Article
- Long-term all-cause and cause-specific mortality for four bariatric surgery procedures.Obesity (Silver Spring, Md.) · 2023Article
- Gastrojejunocolic fistula: case report of a rare late complication of laparoscopic Roux-en-Y gastric bypass and review of the literature.International journal of surgery case reports · 2021Article
- Differential Outcomes and Clinical Challenges of NAFLD With Extreme Obesity.Hepatology communications · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
backgroundPatients having bariatric surgery have lower mortality compared with those with similar body mass index who do not undergo surgery. It is unclear whether mortality post-bariatric surgery is similar to the general population. The benefit of bariatric surgery would be highlighted should people previously at high risk for premature death have comparable, or better, mortality as the general population.
objectiveTo compare mortality after bariatric surgery to the general U.S. population of the same age, sex, and race.
settingThe Longitudinal Assessment of Bariatric Surgery-2 (LABS-2) prospective cohort of 2458 adults who underwent bariatric surgery at 10 U.S. hospitals between 2006 and 2009.
methodsDeaths were identified via LABS-2 follow-up and the National Death Index. Standardized mortality ratios (SMR) of post-bariatric surgery mortality observed in LABS-2 versus age-, sex-, race-, and year-adjusted expected mortality in the general U.S. population were calculated and compared with 1, which results when the number of observed and expected deaths are equal.
resultsLABS-2 median follow-up was 6.6 (interquartile range: 5.9-7.0) years postsurgery. Seventy-six deaths were observed over 15,616 person-years (PY) of observation (4.9 deaths/1000 PY). The rate expected in the general U.S. population with the same age, sex, race, and year distribution was 4.8 deaths per 1000 PY (SMR = 1.02, 95% confidence interval [CI]: .80-1.27). There were no significant differences between observed and expected mortality by surgical procedure. Compared with expected mortality in the general U.S. population, people 35-44 years old at time of surgery had significantly more deaths (SMR = 2.06, 95% CI: 1.22-3.25), while people at least 55 years of age had significantly fewer (SMR = .63, 95% CI: .42-.92). Significantly more deaths than expected occurred in the perioperative period and 5-7 years after surgery.
conclusionsMortality within 7 years of bariatric surgery is comparable to the general U.S. population, which is likely to have better survival than people with severe obesity. However, more deaths than expected were identified 5-7 years after surgery.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.