Figure 4From: Trend in incidence of gastric adenocarcinoma by tumor location from 1969–2004: a study in one referral center in IranTrend in location of gastric adenocarcinoma by age. The increasing prevalence of adenocarcinomas of upper and middle parts of stomach is seen in booth groups and it is a little more pronounced in younger patients (Somer's d: -0.239 in younger and -0.227 in elders; both P < 0.001)Back to article page