1989
DOI: 10.3109/00365528909091728
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Campylobacter pylori – A Role in Non-Ulcer Dyspepsia?

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Cited by 81 publications
(27 citation statements)
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“…Figure 1 also shows that the 99% CIs in the published studies of nonulcer dyspepsia involve more than 2-fold uncertainty owing to the small numbers of patients: for example, only 2 studies 27,38 involved more than 100 patients and 100 controls. But, although a previously published meta-analysis 10 pooled the results of 19 published studies involving a total of 2700 patients with nonulcer or uninvestigated dyspepsia to report a combined OR of 2.3 (95% CI, 1.9-2.7) for H pylori infection in dyspepsia, its conclusions are potentially misleading * References 28,29,31,33,36,37,39,40,44,45,48,49. Olmos et al, 27 1998…”
Section: Statistical Analysesmentioning
confidence: 97%
“…Figure 1 also shows that the 99% CIs in the published studies of nonulcer dyspepsia involve more than 2-fold uncertainty owing to the small numbers of patients: for example, only 2 studies 27,38 involved more than 100 patients and 100 controls. But, although a previously published meta-analysis 10 pooled the results of 19 published studies involving a total of 2700 patients with nonulcer or uninvestigated dyspepsia to report a combined OR of 2.3 (95% CI, 1.9-2.7) for H pylori infection in dyspepsia, its conclusions are potentially misleading * References 28,29,31,33,36,37,39,40,44,45,48,49. Olmos et al, 27 1998…”
Section: Statistical Analysesmentioning
confidence: 97%
“…191,192,203 There was no asymmetry in the Egger plot (p = 0.8), all the trials being about the same size.…”
Section: Reasons For Heterogeneitymentioning
confidence: 99%
“…Two trials included both H. pylori-positive and -negative individuals and these groups were entered separately to evaluate any difference in outcome according to infection status. 191,192 Six trials reported global dyspepsia improvement as a dichotomous outcome [187][188][189][190]192 and there was a trend towards bismuth salts being more effective than placebo, although this was of marginal statistical significance (RR reduction, 40%; 95% CI, -3 to 65) (Figure 10). Again, significant heterogeneity was noted in the analysis (Q = 18.31; df = 5; p = 0.003), due to the inclusion of one trial 190 with a very low placebo response rate (5%) and a correspondingly large treatment effect (RR reduction, 79%).…”
Section: Bismuth Saltsmentioning
confidence: 99%
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