Table 6 Summary of the characteristics of the studies reviewed in Table 5
From: Helicobacter pylori infection and circulating ghrelin levels - A systematic review
Characteristic | Â | n | n % |
|---|---|---|---|
Study Design | Case control | 7 | 25.93 |
| Â | Cohort | 9 | 33.33 |
| Â | Cross-sectional | 11 | 40.74 |
Gender studied | Both | 21 | 77.78 |
| Â | Men | 3 | 11.11 |
| Â | Women | 3 | 11.11 |
Region | Asia | 13 | 48.15 |
| Â | Europe | 11 | 40.74 |
| Â | North America | 3 | 11.11 |
Health status | Both | 4 | 14.81 |
| Â | Healthy | 9 | 33.33 |
| Â | Sick | 14 | 51.85 |
Age Group | Adults | 23 | 85.19 |
| Â | Both | 2 | 7.41 |
| Â | Children | 2 | 7.41 |
Type of Sickness | Cancer | 3 | 17.65 |
| Â | GI symptoms | 11 | 64.71 |
|  | Others†| 3 | 17.64 |
HP assessment methods used | Not Described | 5 | 18.52 |
| Â | One | 7 | 25.93 |
| Â | Two or more | 15 | 55.56 |
Assay Type | Commercial EIA | 4 | 14.81 |
| Â | Commercial ELISA | 3 | 11.11 |
| Â | Commercial RIA | 14 | 51.85 |
| Â | In-house RIA | 5 | 18.52 |
| Â | Not stated | 1 | 3.7 |
Sample Size | 50 and below | 6 | 22.22 |
| Â | 51-200 | 16 | 59.26 |
| Â | 201 and above | 5 | 18.52 |
Sample Storage | -70C and above | 19 | 70.37 |
| Â | Below -70C | 4 | 14.81 |
| Â | Not Described | 4 | 14.81 |
Sample type | Plasma | 17 | 62.96 |
| Â | Serum | 10 | 37.04 |
BMI of participants | Normal | 15 | 57.69 |
| Â | Not Stated | 2 | 7.69 |
| Â | Obese | 2 | 7.69 |
| Â | Various | 4 | 15.38 |
| Â | low to normal | 3 | 11.54 |