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Showing 2 results for Prostate Cancer

Maryam Gholamarzaei, Marjan Ajami, Sareh Shakerian,
Volume 21, Issue 3 (12-2025)
Abstract

Background and Objectives: Considering the importance of prevention and effective community-based interventions in reducing the psychological and economic burdens of cancers, and focusing on modifiable risk factors, the present study was designed and conducted with regard to several of these factors.
Methods: This case-control study included 211 patients with various types of cancer and 322 controls selected from the PARSA health system. Primary exposures of interest included fast food consumption, fruit and vegetable intake, and physical activity. The International Physical Activity Questionnaire (IPAQ) was used to assess physical activity levels, while the Food Frequency Questionnaire (FFQ) was used to measure fast food and fruit and vegetable consumption. Descriptive statistics and Chi-square tests, independent t-tests, and logistic regression were used for analysis.
Results: Logistic regression analysis indicated that inadequate fruit and vegetable consumption compared to adequate intake was associated with odds ratios of 4.49 and 4.042, respectively, for increased cancer risk. In addition, lower fast food consumption (OR = 0.466)] was associated with a 53% reduction in cancer risk. Physical activity [at the walking level] was statistically significant, although the effect size was very weak. Occupation, gender, education level, family history, and age showed statistically significant relationships with cancer, while other demographic variables showed no significant association.
Conclusion: Based on the findings of the current study and other evidence, as well as the fact that dietary patterns and physical activity are modifiable risk factors, appropriate interventions can play a preventive role in reducing the incidence of chronic diseases. This requires improving community awareness and designing and implementing effective interventions.

Rasoul Gholamiveis, Fatemeh Heydarpour, Mehdi Moradinazar,
Volume 21, Issue 4 (3-2026)
Abstract

Background and Objectives: Prostate cancer is one of the most common cancers among Iranian men and has shown a marked increase in both incidence and mortality over recent decades. This study aimed to analyze temporal trends in prostate cancer incidence and mortality in Iran using an Age–Period–Cohort (APC) analytical framework.
Methods: Data were extracted from the Global Burden of Disease Study 2021 for Iranian males aged 45 years and older during 1992–2021. Data were stratified into eight 5-year age groups and six 5-year time periods. APC analysis was conducted using the second-order difference method, and Joinpoint regression was employed to assess temporal trends in risk factors.
Results: In 2021, the age-standardized incidence rate reached 30.05 per 100,000 population, and the mortality rate reached 10.66 per 100,000 representing increases of 105.96% and 14.99%, respectively, compared to 1992. Age effects were positively associated with both incidence and mortality. The period effect peaked during 2002–2006. Cohort analysis revealed that younger birth cohorts exhibited a slower acceleration in incidence rates. Among risk factors, the disease burden attributable to smoking increased by 17.1%, while the protective effects of low calcium intake and low milk consumption diminished over time.
Conclusion: Rising incidence and mortality are shaped by age, period, and cohort effects. The relative decline in younger cohorts underscores the need for targeted prostate cancer screening programs. Strengthening public health education policies and improving access to diagnostic services can reduce the disease burden.


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