Evidence map›Paper›PMID 32380581›Full record

ArticleJournal of neurogastroenterology and motility2020

Prevalence of Disaccharidase Deficiency in Adults With Unexplained Gastrointestinal Symptoms.

Lavanya Viswanathan, Satish S C Rao, Kevin Kennedy, Amol Sharma, Yun Yan, Enoe Jimenez

Open access · diamondAbstract read
In one paragraph

Article in Journal of neurogastroenterology and motility, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

11 citing papers in PubMed, 23 citations in OpenAlex.

  1. Disaccharidase testing and clinical outcomes: a retrospective study.Proceedings (Baylor University. Medical Center) · 2026
    Article
  2. Disaccharidase testing in adults: do we need new testing standards?Proceedings (Baylor University. Medical Center) · 2026
    Article
  3. Review
  4. Disaccharidase Enzyme Deficiency in Adult Patients With Gas and Bloating.Clinical and translational gastroenterology · 2025
    Article
  5. Article
  6. Review
  7. Review
  8. Sucrose intolerance in adults with common functional gastrointestinal symptoms.Proceedings (Baylor University. Medical Center) · 2022
    Article
  9. Article
  10. Review
  11. 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

6 authors at 1 institution in 1 country.

Lavanya ViswanathanDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA, USA.ORCID 0000-0003-0396-9397
Satish S C RaoDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA, USA.ORCID 0000-0002-4446-8452
Kevin KennedyDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA, USA.
Amol SharmaDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA, USA.
Yun YanDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA, USA.
Enoe JimenezDivision of Gastroenterology and Hepatology, Department of Internal Medicine, Augusta University, Augusta, GA, USA.
Augusta University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background/Aims: Disaccharidase assay is used for assessing carbohydrate intolerance in children, but its usefulness in adults is not known. The aim of this study is to assess the prevalence of disaccharidase deficiency in patients with unexplained gastrointestinal symptoms. Methods: A retrospective review of adults with chronic (> 1 year) abdominal symptoms and negative imaging and endoscopy/colonoscopy and who completed bowel symptom questionnaire and duodenal biopsy for lactase, maltase, sucrase, and palatinase was performed. A subset also underwent 25 g lactose breath test (LBT). Results: One hundred twenty patients (females = 83) were evaluated, of whom 48 also underwent LBT. Fifty-six (46.7%) patients had enzyme deficiency; 44 (36.7%) had single (either lactase or maltase), 1 had 3 enzyme deficiencies, 11 (9.2 %) had all 4 disaccharidase enzyme (pan-disaccharidase) deficiency, and 64 (53.0%) had normal enzyme levels. Baseline prevalence and severity of 11 gastrointestinal symptoms were similar between normal and single enzyme deficiency groups. The sensitivity and specificity of LBT was 78.3% and 72.0%, respectively and overall agreement with lactase deficiency was 75.0%. Conclusions: Isolated disaccharidase deficiency occurs in adults, usually lactase and rarely maltase, and pan-disaccharidase deficiency is rare. Baseline symptoms or its severity did not predict enzyme deficiency.

Indexed as

Breath testsDisaccharidaseLactose intoleranceSucrase-isomaltase deficiency

Identifiers

PMID32380581
PMCPMC7329151
OpenAlexW3021687207

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.