Volume 83, Issue 2 (May 2025)
Tehran Univ Med J 2025, 83(2): 134-142 |
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Mahdavi S, Emamian M H, Kordi Z, Fateh M, Enayatrad M. Investigating the incidence of stomach cancer in Shahroud
and Meyami districts in a period of thirteen years. Tehran Univ Med J 2025; 83 (2) :134-142
URL: http://tumj.tums.ac.ir/article-1-13521-en.html
URL: http://tumj.tums.ac.ir/article-1-13521-en.html
Sepideh Mahdavi *1 
, Mohammad Hassan Emamian2 , Zahra Kordi3 , Mansooreh Fateh3 , Mostafa Enayatrad4
, Mohammad Hassan Emamian2 , Zahra Kordi3 , Mansooreh Fateh3 , Mostafa Enayatrad4
1- Clinical Research Development Unit, Bahar Hospital, Shahroud University of Medical Sciences, Shahroud, Iran.|Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.
2- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
3- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran.
4- Clinical Research Development Unit, Bahar Hospital, Shahroud University of Medical Sciences, Shahroud, Iran.
2- Ophthalmic Epidemiology Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
3- Center for Health Related Social and Behavioral Sciences Research, Shahroud University of Medical Sciences, Shahroud, Iran.
4- Clinical Research Development Unit, Bahar Hospital, Shahroud University of Medical Sciences, Shahroud, Iran.
Abstract: (719 Views)
Background: Stomach cancer is the fifth most common cancer worldwide. This study aimed to investigate the trend in the incidence of stomach cancer in Shahroud and Meyami districts over a thirteen-year period.
Methods: This study is a cross-sectional study that examines the incidence of stomach cancer using data from the population-based cancer registry system in Shahroud and Meyami Districts in Semnan province over a thirteen-year period from the beginning of April 2010 to the end of March 2022. Age-standardized incidence rates were calculated using both the new and old-World Health Organization standard populations. Trend in cancer incidence were analyzed using Joinpoint regression.
Results: Between 2010 and 2022, a total of 474 new cases of stomach cancer were reported. The mean age at diagnosis was 69.3±12.8 years, with 70.3±12.7 years in men and 67.8±12.8 years in women. The age-standardized incidence rate based on the new WHO population was 15.1 per 100,000 people for the entire period, and 20.9 and 9.5 per 100,000 for men and women, respectively. The annual percentage change indicated a (APC: -4.60 % (95% CI: -0.08 to -9.36)) decrease per year, which was statistically significant (P=0.047), particularly in men (APC= -4.42%, (95% CI: -8.39 to -0.63, P=0.024)), whereas the decline in women was not statistically significant (APC= -4.28%, (95% CI: -10.45 to 1.79, P=0.150)). The incidence of stomach cancer increases with age, with the highest number of cases observed in the 75-79 years age group. The incidence trend in the age group 70-74 years (AAPC: -8.98% (95% CI: -2.75, -14.72 was significantly (P=0.005) decreasing.
Conclusion: The findings of this study showed that the age-standardized incidence rate of stomach cancer had a decreasing trend and that incidence increased with advancing age. Moreover, the incidence rate in men was approximately twice that in women. In men, the incidence trend showed a significant decline, whereas in women no significant change was observed.
Methods: This study is a cross-sectional study that examines the incidence of stomach cancer using data from the population-based cancer registry system in Shahroud and Meyami Districts in Semnan province over a thirteen-year period from the beginning of April 2010 to the end of March 2022. Age-standardized incidence rates were calculated using both the new and old-World Health Organization standard populations. Trend in cancer incidence were analyzed using Joinpoint regression.
Results: Between 2010 and 2022, a total of 474 new cases of stomach cancer were reported. The mean age at diagnosis was 69.3±12.8 years, with 70.3±12.7 years in men and 67.8±12.8 years in women. The age-standardized incidence rate based on the new WHO population was 15.1 per 100,000 people for the entire period, and 20.9 and 9.5 per 100,000 for men and women, respectively. The annual percentage change indicated a (APC: -4.60 % (95% CI: -0.08 to -9.36)) decrease per year, which was statistically significant (P=0.047), particularly in men (APC= -4.42%, (95% CI: -8.39 to -0.63, P=0.024)), whereas the decline in women was not statistically significant (APC= -4.28%, (95% CI: -10.45 to 1.79, P=0.150)). The incidence of stomach cancer increases with age, with the highest number of cases observed in the 75-79 years age group. The incidence trend in the age group 70-74 years (AAPC: -8.98% (95% CI: -2.75, -14.72 was significantly (P=0.005) decreasing.
Conclusion: The findings of this study showed that the age-standardized incidence rate of stomach cancer had a decreasing trend and that incidence increased with advancing age. Moreover, the incidence rate in men was approximately twice that in women. In men, the incidence trend showed a significant decline, whereas in women no significant change was observed.
Type of Study: Original Article |
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