Abstract:
BACKGROUND:The accuracy of symptom-based diagnostic criteria for irritable bowel syndrome (IBS) is modest. AIMS:To derive and validate a new test that utilises latent class analysis. METHODS:Symptom, colonoscopy, and histology data were collected from 1981 patients and 360 patients in two cohorts referred to secondary care for investigation of their gastrointestinal symptoms in Canada and the UK, respectively. Latent class analysis was used to identify naturally occurring clusters in patient-reported symptoms in the Canadian dataset, and the latent class model derived from this was then applied to the UK dataset in order to validate it. Sensitivity, specificity, and positive and negative likelihood ratios (LRs) were calculated for the latent class models. RESULTS:In the Canadian cohort, the model had a sensitivity of 44.7% (95% CI 40.0-50.0) and a specificity of 85.3% (95% CI 83.4-87.0). Positive and negative LRs were 3.03 (95% CI 2.57-3.56) and 0.65 (95% CI 0.59-0.71) respectively. A maximum positive LR of 3.93 was achieved following construction of a receiver operating characteristic curve. The performance in the UK cohort was similar, with a sensitivity and specificity of 52.5% (95% CI 42.2-62.7) and 84.3% (95% CI 79.3-88.6), respectively. Positive and negative LRs were 3.35 (95% CI 2.38-4.70) and 0.56 (95% CI 0.45-0.68), respectively, with a maximum positive LR of 4.15. CONCLUSIONS:A diagnostic test for IBS, utilising patient-reported symptoms incorporated into a latent class model, performs as accurately as symptom-based criteria. It has potential for improvement via addition of clinical markers, such as coeliac serology and faecal calprotectin.
journal_name
Aliment Pharmacol Therjournal_title
Alimentary pharmacology & therapeuticsauthors
Sood R,Gracie DJ,Gold MJ,To N,Pinto-Sanchez MI,Bercik P,Moayyedi P,Ford AC,Law GRdoi
10.1111/apt.13949subject
Has Abstractpub_date
2017-03-01 00:00:00pages
824-832issue
6eissn
0269-2813issn
1365-2036journal_volume
45pub_type
杂志文章abstract:BACKGROUND:Nearly 45% of all deaths are associated with chronic fibroproliferative diseases, of which the primary characteristic is altered remodelling of the extracellular matrix. A major difficulty in developing anti-fibrotic therapies is the lack of accurate and established techniques to estimate dynamics of fibrosi...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/apt.12820
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:The most common complication after ileal pouch anal anastomosis in up to 50% of patients is an acute pouchitis. The majority of patients respond to antibiotic treatment. However, 10%-15% develops chronic antibiotic-dependent or refractory pouchitis which is usually hard to treat. AIM:To evaluate the effecti...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1111/apt.14479
更新日期:2018-03-01 00:00:00
abstract:BACKGROUND:Randomized, placebo controlled trials are used to assess the efficacy of therapies for Crohn's disease. The placebo response and remission rates vary among studies. AIM:To analyse how the placebo response and remission rates in Crohn's trials have changed over time in the era of parenteral biologic therapie...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2009.04125.x
更新日期:2010-01-01 00:00:00
abstract:AIM:To systematically review the literature evaluating hypnotherapy in the management of irritable bowel syndrome (IBS). METHODS:Electronic databases were searched (Cochrane Library, Medline, CINAHL, AMED, Embase, PsycINFO, CISCOM, TRIP and the Social Science Citation index), bibliographic references scanned and main ...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2006.03028.x
更新日期:2006-09-01 00:00:00
abstract:BACKGROUND:The guaiac faecal occult blood test (G-FOBT), HemoccultSENSA, is sensitive for significant neoplasms [colorectal cancer (CRC), advanced adenomatous polyps (AAP)], but faulted by non-specificity for human haemoglobin (Hb). Quantified, Hb- specific, immunochemical faecal occult blood tests (I-FOBT) are now use...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/j.1365-2036.2008.03898.x
更新日期:2009-02-15 00:00:00
abstract:BACKGROUND:It is unclear whether adherence to prescribing standards has been achieved in inflammatory bowel disease (IBD). AIM:To determine how prescribing of 5-aminosalicylates (5-ASAs), steroids and thiopurines has changed in response to emerging evidence. METHODS:We examined trends in oral and topical therapies in...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.13700
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Five oral nucleos(t)ide analogues are available to treat chronic hepatitis B (CHB). With the availability of newer agents, their efficacy on incidence of hepatocellular carcinoma (HCC) is not well described. AIM:To determine the efficacy of oral anti-viral agents in reducing HCC risk in relationship with ot...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,meta分析
doi:10.1111/apt.12344
更新日期:2013-07-01 00:00:00
abstract::Twenty-four-hour intragastric acidity was measured in 10 patients with a past history of duodenal ulcer on the fourth day of dosing with placebo, and either 150 mg ranitidine given twice or four times daily. The order of the treatments was randomized and a double-blind design was employed. Ranitidine (150 mg) b.d. dec...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1989-06-01 00:00:00
abstract:BACKGROUND:Fructose malabsorption, lactose malabsorption and an early rise in breath hydrogen after lactulose (ERBHAL) may play roles in induction of symptoms in gastrointestinal conditions. AIM:To compare prevalence and interactions of fructose malabsorption, lactose malabsorption and ERBHAL among healthy subjects an...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2010.04230.x
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abstract:BACKGROUND:Two variants in the organic cation transporter gene cluster have been recently reported to confer susceptibility to Crohn's disease (CD). AIM:To investigate these variants in CD and ulcerative colitis (UC), and their interaction with CARD15 gene and correlation to clinical subphenotypes. METHODS:Case-contr...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
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abstract:BACKGROUND:In some cases, Helicobacter pylori infection persists even after three eradication treatments. AIM:To evaluate the efficacy of an empirical fourth-line rescue regimen with rifabutin in patients with three eradication failures. METHODS: DESIGN:Multicentre, prospective study. PATIENTS:In whom the following...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究
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abstract:BACKGROUND:The association between ulcerative colitis and cytomegalovirus (CMV) has been recognised for over 50 years; and the role of CMV in ulcerative colitis in general, and steroid resistance in particular, remains a topic of ongoing controversy. The outcome for patients with CMV reactivation appears worse than tha...
journal_title:Alimentary pharmacology & therapeutics
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更新日期:2006-05-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2036.1988.tb00668.x
更新日期:1988-02-01 00:00:00
abstract::Although up to 50% of patients diagnosed with nonulcer dyspepsia (NUD) have Helicobacter pylori infection and underlying chronic gastritis, it remains controversial whether any causal relationship exists. The results of worldwide epidemiological studies have been unconvincing. No clear-cut link has been documented bet...
journal_title:Alimentary pharmacology & therapeutics
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pub_type: 杂志文章
doi:10.1111/j.1365-2036.2005.02687.x
更新日期:2005-11-15 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章
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journal_title:Alimentary pharmacology & therapeutics
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
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更新日期:2017-04-01 00:00:00
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更新日期:2009-04-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.13657
更新日期:2016-07-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.13232
更新日期:2015-07-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
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更新日期:2001-12-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2012-09-01 00:00:00
abstract:BACKGROUND:Patients with thalassaemia major depend on blood transfusions. In Italy, up to 80% of thalassaemia patients bear HCV antibodies due to HCV contaminated transfusions before 1990. Thalassaemia patients with HCV infection have high risk of developing HCC. Treatment based on Pegylated-IFN (Peg-IFN) and Ribavirin...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/apt.14197
更新日期:2017-08-01 00:00:00
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journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2036.2003.01784.x
更新日期:2003-11-01 00:00:00
abstract:BACKGROUND:Intravenous octreotide is an established treatment of oesophageal variceal haemorrhage in the cirrhotic patient. AIM:To examine the organ extraction and splanchnic haemodynamic effects of octreotide in cirrhotic patients with portal hypertension. METHODS:Thirteen patients with cirrhosis had hepatic venous ...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章
doi:10.1046/j.1365-2036.1998.00353.x
更新日期:1998-07-01 00:00:00
abstract:BACKGROUND:The various components of pain and quality of life in duodenal ulcer patients receiving antisecretory drugs have not been studied to date. METHODS:Ninety-five patients with epigastric pain and duodenal ulcer at endoscopy completed this prospective, multicenter, open-study. All were treated with effervescent...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/j.1365-2036.1995.tb00402.x
更新日期:1995-08-01 00:00:00