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Showing 2 results for Subject: Epidemiology
Mohammad Sadegh Soltan Mohammadzadeh, Sohrab Iranpour, Farhad Pourfarzi, Hajar Gholami,
Volume 0, Issue 0 (4-2024)
Abstract
Background: this study aimed to examine the completeness of the sources of gastric cancer registration and estimate the incidence of gastric cancer using population-based cancer registry data in Ardabil province.
Methods: All diagnosed cases of gastric cancer from the years 2014-2016, recorded in three sources-pathology reports, death certificates, and hospital records-were included in the study. To eliminate duplicate cases, variables such as first name, last name, national ID number, age, gender, date of birth, father's name, and city of residence were used. For estimating the incidence rate, the three-source capture-recapture method and log-linear models were applied.
Results: The incidence based on reported cases by three sources in the years 2014, 2015, and 2016 was 36, 35, and 43 respectively, totaling 99 per 100,000 people (33% women and 66% men). Based on estimated cases, the incidence per year was 85, 63, and 92 cases, totaling 141 per 100,000 people (in men and women, 179 and 100 per 100,000, respectively). The highest sensitivity was related to the pathology source (observed 69.1%, estimated 48.5%), and the lowest was related to the hospital source (observed 18.2%, estimated 12.8%).
Conclusion: The incidence of gastric cancer in Ardabil province was 99 per 100,000 people based on reported cases and 141 per 100,000 people based on estimated cases. The pathology source had the highest sensitivity, while the hospital source had the lowest sensitivity.
Mohammad Jafarzadeh, David Adham, Fatemeh Dana, Abbas Abbasi Ghahramanloo , Hossein Sharifi, Javad Abishvand, Reza Ebrahimoghli, Eslam Moradi-Asl,
Volume 23, Issue 1 (4-2023)
Abstract
Background & Objective: Hepatitis B virus [HBV] infection is one of the most important public health concerns. The present study was conducted to provide a descriptive analysis of detected HBV infection in Ardabil province.
Methods: In this retrospective longitudinal study, the hepatitis B surveillance database of Ardabil province was examined from 2014 to 2018. The frequency of hepatitis B virus infections was presented based on age, gender, marital status, place of residence, primary symptoms, and reporting sources. Also, the trend of changes in the number of detected cases over time was investigated using time series analysis.
Results: A total of 817 positive cases with a mean age of 43.1 years were reported. Most of them were male [n=503, 61.5]. The Frequency of identified positive cases decreased over time. Most of the infections were asymptomatic [87.5%]. Almost 90.0% of patients with HBV were married and the majority of the identified patients were resided in urban settings [n=598, 73.2%]. Most diagnostic tests were done voluntarily [n=219, 26.8%] or during prenatal care [n=109, 13.3%]. Most cases were identified and reported by the health network [n=292, 35.7%] and blood transfusion organization [n=190, 23.2%].
Conclusion: Decision-makers of the health sector of the province can use this information as a source for evidence-based decision-making in the effective management of the disease.
Corresponding Author:
Eslam moradi-Asl, Department of Public Health, School of Health, Ardabil University of Medical Sciences, Ardabil, Iran.
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