Table 3.
Characteristics of esophageal and gastroesophageal junction cancer cases grouped by fresh frozen endoscopy biopsy H. pylori status
| Esophageal (N = 62) | Pearson Chi2 p-value | ||||||
|---|---|---|---|---|---|---|---|
| Hp negative (N = 28) | Hp positive - cagA negative (N = 14) | Hp positive - cagA positive (N = 20) | |||||
| N | % | N | % | N | % | ||
| Sex | |||||||
| Male | 13 | 46% | 5 | 36% | 11 | 55% | 0.54 |
| Female | 15 | 54% | 9 | 64% | 9 | 45% | |
| Age at recruitment (years) | |||||||
| < 40 | 3 | 11% | . | . | 3 | 15% | 0.83 |
| 40–49 | 5 | 18% | 3 | 21% | 2 | 10% | |
| 50–59 | 8 | 29% | 4 | 29% | 6 | 30% | |
| 60+ | 12 | 43% | 7 | 50% | 9 | 45% | |
| Education | |||||||
| None | 6 | 21% | 3 | 21% | 5 | 25% | 0.95 |
| Any schooling | 22 | 79% | 11 | 79% | 15 | 75% | |
| Center of enrolment | |||||||
| Mexico Higher Clinic | 13 | 46% | 10 | 71% | 17 | 85% | 0.02 |
| Adera Higher Clinic | 15 | 54% | 4 | 29% | 3 | 15% | |
| Location of tumor | |||||||
| Upper third of esophagus | 3 | 11% | 1 | 7% | . | . | 0.76 |
| Middle third of esophagus | 7 | 25% | 5 | 36% | 7 | 35% | |
| Lower third of esophagus | 9 | 32% | 6 | 43% | 6 | 30% | |
| Esophagus, unspecified | 4 | 14% | 1 | 7% | 2 | 10% | |
| Junction | 5 | 18% | 1 | 7% | 5 | 25% | |
| Histology | |||||||
| Squamous cell carcinoma | 22 | 79% | 11 | 79% | 13 | 65% | 0.62 |
| Adenocarcinoma | 4 | 14% | 2 | 14% | 5 | 25% | |
| Mixed | 1 | 4% | . | . | 2 | 10% | |
| Other | 1 | 4% | 1 | 7% | . | . | |
Hp = H. pylori