|
| No. | Authors | Year | Method used to detect H. pylori | Sample size | Prevalence of coinfection of H. pylori |
|
| 1 | Agarwal and Jithendra [31] | 2012 | PCR-16S rRNA | 30 H. pylori positive and 20 H. pylori negative patients | Overall-36%; in H. pylori positive group-60% |
| 2 | Agarwal and Jithendra [31] | 2012 | Culture | 30 H. pylori positive and 20 H. pylori patients | Overall-18%; in H. pylori positive group-30% |
| 3 | Bago et al. [41] | 2011 | PCR-16S rDNA | 56 patients with chronic periodontitis and gastric H. pylori positive | 37.5% |
| 4 | Silva et al. [58] | 2010 | PCR-16S rRNA | 115 patients | Overall-8.7%; among H. pylori positive group-14.93% |
| 5 | Eskandari et al. [56] | 2010 | PCR-16S rRNA | 67 patients with chronic periodontitis-23 with H. pylori positive gastritis | Overall-5.97%; among H. pylori positive group-17.39% |
| 6 | Al Asqah et al. [35] | 2009 | RUT | 62 dyspeptic patients with periodontitis and 39 dyspeptic patients without periodontitis | Overall-32.7%; 66% among H. pylori positive patients |
| 7 | Liu et al. [61] | 2009 | PCR-860-bp fragment | 443 dyspeptic patients | Overall-42.7%; among H. pylori positive subjects-69.2% (75.5% in 18–29 years; 61.7% in 30–39 years; 79.7% in 40–49 years; 76.6% in ≥50 years) |
| 8 | Leszczyńska
et al. [27] | 2009 | EIA | 164 dyspeptic patients referred for endoscopy-95 H. pylori positive and 69 noninfected | Overall-47.6%; 82.1% in H. pylori positive |
| 9 | Silva et al. [59] | 2009 | PCR-16s ribosomal and cagA genes | 30 with H. pylori positive with gastric disease and 32 with H. pylori positive with no gastric disease | Overall-17.7%. Among cases, H. pylori DNA detected in 36.6%, and cagA gene detected in 3 out of 11 samples. In control group-0% |
| 10 | Bürgers et al. [36] | 2008 | PCR-16S rDNA | 94 patients who underwent upper gastrointestinal endoscopy | Overall-1.1% 3.5% of H. pylori positive subjects |
| 11 | Teoman et al. [25] | 2007 | PCR-Urease A | 67 dyspeptic patients | Overall-25.4%; among H. pylori positive group-36.2% |
| 12 | Anand et al. [38] | 2006 | RUT | Sixty-five dyspeptic patients with H. pylori infection and 69 dyspeptic patients without H. pylori infection | Overall-43.3%; 89.2% among cases |
| 13 | Chitsazi et al. [23] | 2006 | RUT | 88 dyspeptic patients-44 with H. pylori infection and 44 without H. pylori infection | Overall 34.1%; 36.4% in H. pylori positive group |
| 14 | Agüloğlu et al. [76] | 2006 | CLO test | 468 patients who were H. pylori positive by CLO test | 25.2% |
| 15 | Agüloğlu et al. [76] | 2006 | EIA | 318 patients who were H. pylori positive by EIA | 23.6% |
| 16 | Agüloğlu et al. [76] | 2006 | Culture | 295 patients who were H. pylori positive by culture | 14.6% |
| 17 | Czesnikiewicz-Guzik et al. [75] | 2005 | Culture | 100 female patients | 6.9% |
| 18 | Kignel et al. [64] | 2005 | PCR-16S rRNA | 49 dyspeptic patients | 2% of the total population and 5% of H. pylori positive subjects |
| 19 | Umeda et al. [37] | 2003 | PCR-16S rRNA | 56 dental patients | Overall-14.3%; among H. pylori positive group-28.6%. |
| 20 | Gürbüz et al. [30] | 2003 | RUT | 75 dyspeptic patients | Overall-81.3%; among H. pylori positive subjects-93.9% |
| 21 | Berroteran et al. [39] | 2002 | PCR-Urease genes | 32 dyspeptic patients and 20 asymptomatic controls | Overall-13.5%; 58% among dyspeptic patients |
| 22 | Suk et al. [45] |
2002 | PCR-cagA | 65 patients with dyspeptic symptoms | Overall-43.1%, 73.7% among H. pylori positive patients |
| 23 | Suk et al. [45] |
2002 | RUT | 65 patients with dyspeptic symptoms | Overall-58.5%, 100% among H. pylori positive patients |
| 24 | Özdemir et al. [49] | 2001 | CLO test | 81 dyspeptic patients | Overall-64.2%; among H. pylori positive group-82.5%. |
| 25 | Song et al. [70] | 2000 | PCR-860-bp fragment | 21 patients | Overall-47.6%; among H. pylori positive group-100% |
| 26 | Qureshi et al. [50] | 1999 | CLO test | 60 dyspeptic patients | Overall 33.3%; in H. pylori positive 55.6% |
| 27 | Oshowo et al. [32] | 1998 | PCR-16S rRNA and culture | 208 dyspeptic patients-116 H. pylori positive and 92 H. pylori negative | By PCR-Overall 6.25%; in H. pylori positive-11.2%
By culture-Overall 1%; in H. pylori positive-1.7% By both methods-Overall 7.2% in H. pylori positive-12.9%. |
| 28 | Hardo et al. [24] | 1995 | 16S rRNA | 62 dyspeptic patients | 0 |
| 29 | Mapstone et al. [72] | 1993 | PCR-16S rRNA | 21 dyspeptic patients-13 with H. pylori associated gastritis and 8 who had normal histology | 15.4% in gastritis group-overall prevalence 9.5% |
| 30 | Nguyen et al. [73] | 1993 | PCR-16S rRNA | 25 dyspeptic patients | Overall 28%, among H. pylori positive individuals 38.8% |
| 31 | Krajden et al. [16] | 1989 | Culture | 71 patients undergoing endoscopy | 1.4% of the total population and 3.5% of H. pylori positive subjects |
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