Abstract
A cancer registry program has been established in East Azerbaijan and this has emphasized the importance of cancers of gastrointestinal tract in this region. The aim of the present pathology-based cancer registry report is to renew epidemiologic aspects of gastrointestinal tract cancers and estimate recent trends. A survey team reviewed and collected all records of cancer cases from all referral and valid pathology laboratories of East Azerbaijan province during September 2007-2011. Crude rates, age-specific rates of cancer incidence and annual percent change were calculated. The total newly diagnosed cancer cases (n=6,889) comprised 4,341 males (63.0%) and 2,540 females (36.9%). Gastric cancer was the most common GI tract cancer with an ASR (per 105) of 23.1 for males and 7.69 for females. The ASRs for esophageal and colorectal cancers were 9.69 and 11.2 in males and 7.35 and 8.93 in females. Trend analysis showed a significant decline for esophageal cancer and increasing incidence for colorectal cancer in females. The prevalence of gastric cancer is high in East Azerbaijan province of Iran. This pathology based cancer registry showed an ascending trend for colorectal cancer and decreasing trend for esophageal cancer in females during 2007-2011.
Highlights
Demands for a vast epidemiologic data resulted in establishment of cancer registry programs in several countries
Total Number of Cancer Cases, Age-specific Incidence Rates, Crude Rates and Annual Age-standardized rates (ASR) in Females and males in East Azerbaijan are provided in Table 1 and 2
The highest ASR in females was estimated for colorectal cancer followed by gastric and esophageal cancers
Summary
Demands for a vast epidemiologic data resulted in establishment of cancer registry programs in several countries. Such programs intend to make the most of this information by emphasizing the area of need as well as finding the meaningful trends during years and bring it out to strategic plans within the health care system. The first published report on Gastrointestinal (GI) cancer from northwest of Iran was a paper reporting crude rates during year 1995 in a local scientific journal (Somi et al, 2004) Both of these two pathology based reports indicated a high rate for gastric cancer in this region and resulted in establishment of a 5-year cancer registry program (from 1995 to 2004). Conclusions: The prevalence of gastric cancer is high in East Azerbaijan province of Iran This pathology based cancer registry showed an ascending trend for colorectal cancer and decreasing trend for esophageal cancer in females during 2007-2011
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