Evidence map›Paper›PMID 24976449›Full record

ArticleAnnals of gastroenterology2014

Low hygiene and exposure to infections may be associated with increased risk for ulcerative colitis in a North Indian population.

Ajit Sood, Devendra Amre, Vandana Midha, Suresh Sharma, Neena Sood, Amandeep Thara, Manu Bansal, Garima Juyal, Bittianda Kuttapa Thelma, Ernest Seidman

Open access · greenAbstract read
In one paragraph

Article in Annals of gastroenterology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 8% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Inflammatory bowel disease: An Indian perspective.The Indian journal of medical research · 2021
    Review
  4. Identification of demographic and environmental factors predisposing to ulcerative colitis in southern India.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2020
    Article
  5. The Association between Drinking Water Quality and Inflammatory Bowel Disease-A Study in Eastern Croatia.International journal of environmental research and public health · 2020
    Article
  6. Is the emergence of inflammatory bowel disease a prime example of "the third epidemiological transition"?Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2018
    Article
  7. Risk factors for inflammatory bowel disease: A prospective multi-center study.Indian journal of gastroenterology : official journal of the Indian Society of Gastroenterology · 2018
    Article
  8. Review
  9. Review
  10. Review
  11. Ulcerative Colitis and Its Association with Salmonella Species.Interdisciplinary perspectives on infectious diseases · 2016
    Article
  12. Epidemiology and risk factors for IBD.Nature reviews. Gastroenterology & hepatology · 2015
    Review
  13. Hygiene hypothesis in inflammatory bowel disease.Annals of gastroenterology · 2014
    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

10 authors at 1 institution in 1 country.

Ajit SoodDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Devendra AmreDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Vandana MidhaDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Suresh SharmaDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Neena SoodDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Amandeep TharaDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Manu BansalDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Garima JuyalDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Bittianda Kuttapa ThelmaDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Ernest SeidmanDepartment of Gastroenterology, Dayanand Medical College and Hospital, Ludhiana, India.
Dayanand Medical College & Hospital · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have attempted to link hygiene hypothesis with IBD. However most of these studies come from developed countries where the level of hygiene is high and universal. Very little data is available from developing countries. The present study explores the truth of hygiene hypotheses and other risk factors for ulcerative colitis (UC) in a North Indian population where the prevalence of UC has been increasing.

methodsA total of 518 patients diagnosed with UC and 188 age-matched controls were included in the study. A structured questionnaire concerning socio-demographics and level of hygiene was completed by all participants. Logistic regression analysis was used to study the association between hygiene-related factors and the risk for UC. Odds ratios and 95% confidence intervals were estimated.

resultsThere was a higher proportion of females (P<0.001), and a higher educational status (P=0.01) in UC patients compared with controls. A family history of IBD was present in 7.2% of cases and non-existent in controls. On multivariate analysis, after accounting for potential confounders, having a private bed (P<0.001), and having better toilet facilities [(RCA versus none, P=0.01; Flush toilet versus none, P=0.01), (RCA LATRINE as a toilet technology used in rural areas where no flush facility exists. It was developed under RCA project)] were inversely associated with risk for UC whereas owning a pet (P=0.01) and stressful events like a death in the family (P=0.01) were associated with greater risks for UC.

conclusionOur study does not provide definitive evidence to support hygiene hypothesis and rather suggests that the rising incidence of UC in North India may be attributable to inadequate sanitary measures or other as yet unidentified factors.

Indexed as

Hygiene hypothesisinfectionsulcerative colitis

Identifiers

PMID24976449
PMCPMC4073017
OpenAlexW2157122152

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.