Multidisciplinary Cancer Investigation
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Volume 8, Issue 1 (Multidisciplinary Cancer Investigation 2024)
Multidiscip Cancer Investig 2024, 8(1): 0-0 |
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Ethics code: IR.MUMS.FHMPM.REC.1402.145
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Tavana E, Andish M, Eslami S, Shayesteh V, Parvish T, Mosa Farkhani E. The Impact of Fertility Rate Changes on Breast Cancer Incidence at the Subnational Level. Multidiscip Cancer Investig 2024; 8 (1)
URL: http://mcijournal.com/article-1-392-en.html
URL: http://mcijournal.com/article-1-392-en.html
Ensieh Tavana1 
, Masoumeh Andish1 , Samaneh Eslami1 , Vajiheh Shayesteh2 , Toktam Parvish3 , Ehsan Mosa Farkhani4
, Masoumeh Andish1 , Samaneh Eslami1 , Vajiheh Shayesteh2 , Toktam Parvish3 , Ehsan Mosa Farkhani4
1- Department of Epidemiology, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
2- Health Vice-Chancellor of Mashhad University of Medical Sciences, Population Youth Management, Family and School Health, Mashhad, Iran
3- Economics and Development, Ferdowsi University of Mashhad, Khorasan, Mashhad, Iran
4- Department of Epidemiology, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran ,emf1358@yahoo.com
2- Health Vice-Chancellor of Mashhad University of Medical Sciences, Population Youth Management, Family and School Health, Mashhad, Iran
3- Economics and Development, Ferdowsi University of Mashhad, Khorasan, Mashhad, Iran
4- Department of Epidemiology, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran ,
Abstract: (426 Views)
An inverse association between fertility rates and breast cancer incidence has been observed at the national and global levels. However, few studies have examined this relationship using subnational data. We aimed to determine the correlation between total fertility rates (TFR) and breast cancer incidence across cities in Iran's Razavi Khorasan province between 2014 and 2019. This ecological study utilized age-standardized breast cancer incidence rates and TFRs for 28 regions of Razavi Khorasan province from 2014 to 2019. Pearson correlation coefficients assessed the TFR-incidence correlation annually. Annual percent changes (APCs) in incidence rates were estimated using linear mixed models, unadjusted and adjusted for region-level TFRs. TFR declined province-wide, with the steepest decreases in Bakharz (-45%), Torbat Jaam (-39%), and Torghab & Shandiz (-35%). Breast cancer incidence patterns were heterogeneous across cities, with significantly declining APCs in 7 regions, including Bajestan (-9.8%), Gonabad (-8.1%), and Torghab & Shandiz (-8.3%). Fertility adjustment had minimal impact on APCs. No significant correlation was observed between TFRs and incidence rates from 2014 to 2019 (correlation coefficients -0.193 to 0.193, p>0.05). In contrast to national and global trends, declining fertility rates did not correlate with increasing breast cancer incidence across Razavi Khorasan cities from 2014 to 2019. Regional differences may modify the impacts of changing fertility patterns on breast cancer occurrence. Further investigations into this relationship are warranted using robust analytical methods.
Select article type: Original/Research Article |
Subject:
Health Services, Quality of Life and Outcomes
Received: 2024/04/2 | Accepted: 2024/10/30 | ePublished: 2024/11/12
Received: 2024/04/2 | Accepted: 2024/10/30 | ePublished: 2024/11/12
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