Evidence map›Paper›PMID 27774252›Full record

ArticleObesity science & practice2015

Proxy measures of vitamin D status - season and latitude - correlate with adverse outcomes after bariatric surgery in the Nationwide Inpatient Sample, 2001-2010: a retrospective cohort study.

L A Peterson, J K Canner, L J Cheskin, G P Prokopowicz, M A Schweitzer, T H Magnuson, K E Steele

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Obesity science & practice, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.2field-weighted citation impact, top 40% 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

1 citing paper in PubMed, 4 citations in OpenAlex.

  1. 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

7 authors at 1 institution in 1 country.

L A PetersonThe Johns Hopkins Center for Bariatric Surgery Baltimore USA; The Johns Hopkins Bloomberg School of Public Health Baltimore USA.ORCID 0000-0002-1475-2778
J K CannerThe Johns Hopkins Center for Surgical Trials and Outcomes Research Baltimore USA.
L J CheskinThe Johns Hopkins Bloomberg School of Public Health Baltimore USA; The Johns Hopkins Weight Management Center Baltimore USA; The Global Obesity Prevention Center at Johns Hopkins Baltimore USA.
G P ProkopowiczThe Johns Hopkins Outpatient Center Baltimore USA.
M A SchweitzerThe Johns Hopkins Center for Bariatric Surgery Baltimore USA.
T H MagnusonThe Johns Hopkins Center for Bariatric Surgery Baltimore USA.
K E SteeleThe Johns Hopkins Center for Bariatric Surgery Baltimore USA.
Johns Hopkins University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the association between adverse surgical outcomes following bariatric surgery and proxy measures of vitamin D (VitD) status (season and latitude) in the Nationwide Inpatient Sample (NIS).

backgroundObesity is an independent risk factor for VitD deficiency (25(OH)D < 20 ng ml

methodsWe assessed proxy measures of group VitD status. We compared surgeries in VitD Summer (July to September), Winter (January to March), and Fall/Spring (October to December and April to June) and in the North (≥37°N) vs. the South (<37°N).

resultsWe identified 932,091 bariatric surgeries; 81.2% were women and 74.4% were white. Sex was unequally distributed by season (

conclusionsWe have demonstrated a graded relationship between seasonality and adverse outcomes following bariatric surgery. The association was strongest for dehiscence and prolonged LOS. These relationships held when using latitude. A prospective study measuring pre-operative 25(OH)D concentration would strengthen the case for causality in adverse surgical outcomes.

Indexed as

Adverse surgical outcomesbariatric surgerynutritionobesity

Identifiers

PMID27774252
PMCPMC5064633
OpenAlexW2196498327

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.