Table 1.
Distribution of demographic and clinical-pathological characteristics of subjects evaluated for H. pylori infection.
| Variables | H. pylori status | Total | P value | |
|---|---|---|---|---|
| Negative | Positive | |||
| N (%) | 1554 (64.6) | 852 (35.4) | 2406 | |
| Age (years) | ||||
| ≤19 | 69 (4.4) | 22 (2.6) | 91 | <0.0011 |
| 20–29 | 184 (11.9) | 95 (11.1) | 279 | |
| 30–39 | 248 (16.0) | 166 (19.5) | 414 | |
| 40–49 | 305 (19.6) | 203 (23.9) | 508 | |
| 50–59 | 334 (21.5) | 187 (21.9) | 521 | |
| >60 | 414 (26.6) | 179 (21.0) | 593 | |
| Mean ± SD | 48 ± 17 | 47 ± 15 | 0.06 2 | |
| Range | 9–95 | 10–88 | ||
| Gender | ||||
| Female | 1058 (68.1) | 560 (65.7) | 1618 | 0.26 |
| Male | 496 (31.9) | 292 (34.3) | 788 | |
| Residence | ||||
| Rural | 109 (7.3) | 65 (8.0) | 174 | 0.59 |
| Urban | 1388 (92.7) | 748 (92.0) | 2136 | |
| Tobacco smoking | ||||
| Yes | 130 (37.3) | 86 (36.6) | 216 | 0.93 |
| No | 219 (62.7) | 149 (63.4) | 368 | |
| Alcoholism | ||||
| Yes | 78 (25.8) | 59 (29.1) | 137 | 0.47 |
| No | 224 (74.2) | 144 (70.9) | 368 | |
| Endoscopic diagnosis | ||||
| Normal stomach | 39 (2.5) | 15 (1.8) | 54 | 0.84 |
| Endoscopic lesion | 1515 (97.5) | 837 (98.2) | 2352 | |
| Eradication therapy | ||||
| Yes | — | 196 (80.0) | 196 | — |
| No | — | 49 (20.0) | 49 | |
| After therapy | ||||
| Eradicated | — | 127 (83.5) | 127 | — |
| Not eradicated | — | 25 (16.5) | 25 | |
N = sample number (subjects without information in the medical records were excluded from the analysis). 1chi-square test used to compare age categories. 2t test used to compare means of age.