Table 1 Demography and diseases according to geography
Parameters | Geographical location | |||||
|---|---|---|---|---|---|---|
Eastern | Southern | Central | Northern | Western | p value | |
(Khentii) | (Umnugovi) | Ulaanbaatar city | (Khuvsgul) | (Uvs) | ||
Number of cases | n = 115 | n = 124 | n = 206 | n = 171 | n = 120 |  |
Mean age with SD | 47.4 ± 12.6 | 44.3 ± 13.8 | 41.5 ± 15.4 | 43.5 ± 12.7 | 42.6 ± 11.9 | NS |
Age range | 17–87 | 15–79 | 17–79 | 19–75 | 16–74 | NS |
Gender | ||||||
 Female | 73% | 71% | 65.5% | 65.5% | 69.2% | NS |
 Male | 27% | 29% | 34.5% | 34.5% | 30.8% | NS |
Ethnicity | ||||||
 Major | 97.8% | 100% | N/Aa | 98.4% | 33.3% | 0.0001 |
 Minor | 2.2% | 0% | 1.6% | 66.7% | ||
Endoscopy diagnosis | ||||||
 Gastric ulcer | 3.5% | 3% | 2.4% | 2.9% | 2.5% | NS |
 Duodenal ulcer | 0% | 0.8% | 1.9% | 1.8% | 1.7% | NS |
 Erosive GERD | 5.2% | 9.7% | 5.3% | 11.7% | 14.2% | 0.03 |
 Open type atrophy | 1.3% | 1.8% | 1.4% | 6.0% | 13% | 0.0001 |
Histology diagnosis | ||||||
 Intestinal metaplasia | 19.1% | 21.8% | 16% | 23.4% | 32.5% | 0.01 |