Evidence map›Paper›PMID 29934782›Full record

ArticleObesity surgery2018

Two-Year Nutrition Data in Terms of Vitamin D, Vitamin B12, and Albumin After Bariatric Surgery and Long-term Fracture Data Compared with Conservatively Treated Obese Patients: a Retrospective Cohort Study.

Mervi Javanainen, Tuula Pekkarinen, Harri Mustonen, Tom Scheinin, Marja Leivonen

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Obesity surgery, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 4 pooled it
3.6field-weighted citation impact, top 7% 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

18 citing papers in PubMed, 4 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Fracture risk following bariatric surgery: a systematic review and meta-analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2022
    Pooled it
  5. Trial
  6. Article
  7. Bariatric Surgery and Metabolic Status.Medicina (Kaunas, Lithuania) · 2024
    Article
  8. Observational
  9. Article
  10. Review
  11. Rates, Risks, and Time to Fracture in Patients Undergoing Laparoscopic Vertical Sleeve Gastrectomy versus Roux-en-Y Gastric Bypass.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2021
    Article
  12. Review
  13. Impact of sleeve gastrectomy on hip structural analysis in adolescents and young adults with obesity.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2020
    Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Review
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 4 institutions in 1 country.

Mervi JavanainenJorvi Hospital, Turuntie 150, 02740, Espoo, Finland. mhj4va@gmail.com.ORCID 0000-0002-8052-1097
Tuula PekkarinenSatakunta Central Hospital, Sairaalantie, 28500, Pori, Finland.
Harri MustonenBiomedicum Helsinki, Department of Surgery, Helsinki University Central Hospital, Haartmaninkatu 8, 00290, Helsinki, Finland.
Tom ScheininJorvi Hospital, Turuntie 150, 02740, Espoo, Finland.
Marja LeivonenSeinäjoki Central Hospital, Hanneksenrinne 7, 60220, Seinäjoki, Finland.
Jorvi Hospital · FIHelsinki University Hospital · FISatakunta Central Hospital · FISeinäjoki University of Applied Sciences · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionNutritional deficiencies may occur after bariatric surgery despite supplementation. Fracture risk may also be elevated after bariatric surgery.

objectivesTo compare 25-hydroxyvitamin D [25(OH)D], vitamin B12, and albumin serum concentrations in severely obese patients who had undergone either Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG). Fracture data was compared with data for a conservatively treated group of severely obese patients.

methodsWe considered 253 RYGB and 142 SG performed between 2007 and 2010. At 1- and 2-year control follow-ups, weight was measured and blood samples were drawn. The control group of 199 obese patients received lifestyle intervention and weight was measured at 1 and 2 years post-intervention between 2002 and 2006. We retrospectively collected fracture data for all patients through the end of 2016.

resultsAt follow-ups, the mean serum 25(OH)D and albumin levels were within reference ranges and were similar between the RYGB and SG groups. Serum median vitamin B12 level was significantly higher in the SG group compared with the RYBG group, 319 versus 286 pmol/L at 2 years, respectively, p = 0.04. The cumulative risk for fracture was higher in the bariatric groups compared with the control group. The Cox multivariate model showed higher age, bariatric surgery, and lower body mass index (BMI) at the 2-year control increased the risk for fracture after obesity treatment.

conclusionVitamin 25(OH)D, B12, and albumin levels were mainly within recommended levels during the 2 years after bariatric surgery. The cumulative fracture risk was higher in bariatric patients.

Indexed as

AdultAge FactorsBody Mass IndexCohort StudiesFemaleFinlandFractures, SpontaneousGastrectomyGastric BypassHumansMaleMiddle AgedObesity, MorbidRetrospective StudiesSerum AlbuminVitamin B 1225-hydroxyvitamin DSerum AlbuminVitamin B 12Vitamin DAlbuminBariatric surgeryFracture riskVitamin B12Vitamin D

Identifiers

PMID29934782
OpenAlexW2809007918

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.