Author/Authors :
Rohani Rasaf، Marzieh نويسنده Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences , , Ramezani، Rashid نويسنده Cancer Department, Ministry of Health and Medical Education , , Mehrazma، Mitra نويسنده , , Rohani Rasaf، Mohamad Reza نويسنده Oncopathology Research Centre, Tehran University of Medical Sciences, Tehran , , Asadi-Lari، Mohsen نويسنده Oncopathology Research Centre, Tehran University of Medical Sciences, Tehran, Iran ,
Abstract :
Background: Cancer is the third cause of death in Iran, with an
increasing incidence projected for the next decade. This study aimed
to provide a disaggregated viewpoint on cancer incidence in all
22 districts of Tehran, using the Geographic Information System
(GIS). Identifying clusters of cancers may assist in recognizing the
cause of the disease, visualizing patterns of cancer distribution, the
potential disparities, and help in the provision of early detection
programs and equitable, curative, and palliative services.
Methods: According to the 2007 – 2008 Cancer Registry Data
published by the Ministry of Health, there were 7948 new
cancer cases diagnosed in Tehran. Data were collected from all
pathology centers and hospitals, either public or private facilities,
in Tehran. These were classified into 31 main categories according
to the expert panels and available resources. The population of
the districts and neighborhoods were obtained from the Iran
Statistical Center and the Municipally of Tehran, respectively.
Home addresses and phones were extracted from the database and
imported to GIS. The Age?Standardized Rate (ASR) was calculated
using both the new world standard population (2000 – 2025) and
the Iran population.
Results: Overall, the cancer incidence rate and ASR were 101.8
and 94.775 per 100,000 people, respectively. The maximum cancer
incidence rates in both sexes were in districts 6, 3, 1, and 2, whereas,
the maximum ASRs were in districts 6, 1, 2, and 3. District 6
accommodated the highest ASRs in both the sexes. Common cancers
were breast, skin, colorectal, stomach, and prostate. The ASR in
men and women were 129.954 and 114.546 per 100,000 population.
Conclusion: This report provides an appropriate guide to estimate
the cancer distribution within the districts of Tehran. Higher
ASR in districts 6, 1, 2, and 3, warrant further research, to obtain
robust population?based incidence data and also to investigate the
background predisposing factors in the specified districts.
