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Table 3 Characteristics of esophageal and gastroesophageal junction cancer cases grouped by fresh frozen endoscopy biopsy H. pylori status

From: Prevalence of human papillomavirus and Helicobacter pylori in esophageal and gastroesophageal junction cancer biopsies from a case–control study in Ethiopia

  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% . .
  1. Hp = H. pylori