Identifying county-level factors for female breast cancer incidence rate through a large-scale population study

Introduction Breast cancer is the most common type of cancer in women, the second leading cause of cancer death, and the third most common cancer overall, throughout the world. In 1996, 910.000 new cases were diagnosed worldwide (about 9% of all new cases). Over 50% of breast cancer incidence occurred in the developed world. The aims of this study were to study breast cancer incidence during 1991-2000 in the region of Branicevo and to analyze differences in incidence rate for breast cancer in two periods of time 1991-1991 and 1996-2000. Material and methods This was a descriptive study. Routine national incidence data were used from the Republic Statistical Office. The analysis was restricted to the region of Branicevo. Age adjustment of annual incidence rates was carried out using five-year intervals and the distribution of the World population by Sega as the standard. Results A total of 542 women affected with breast cancer were evidenced in the Region of Branicevo during the period 1991- 2000, accounting for 25.3% of all malignant cases. Over the studied ten-year period the average standardized incidence rate (1:100,000) for breast cancer was 27.4. Based on the average age-specific incidence rates (1:100,000) female breast cancer was least frequently evidenced in women up to 34 years of age, while it was most frequent in groups aged 45 - 49 and 70 - 74 years. Over the period 1991-1995, female breast cancer accounted for 32.0% and in the period 1996-2000 for 22.2% of all mlignancies, with the average standardized incidence rates (1:100,000) being 22.5% and 32.4%, respectively. Discussion The average standardized incidence rate (1:100,000) for breast cancer was 27.4, which is similar to the rates evidenced in Eastern European countries, such as Poland (38.7), Slovakia (34.5), Hungary (29.6), Romania (31.1), Belarus (24.7) and Russia (40.6). Increase of breast cancer incidence rate, evidenced in the Region of Branicevo, is also evidenced in most countries with previously low incidence rates. Increase of breast cancer incidence rate is also detected in our neighboring countries, Bulgaria and Slovenia. Conclusions An increasing trend of breast cancer incidence rate was evidenced in the Region of Branicevo over the period 1991 - 2000, partially due to well kept registries and partially due to actual increase in the number of patients affected with malignant diseases.

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Urban rural disparity in female breast cancer incidence rate in China and the increasing trend in parallel with socioeconomic development and urbanization in a rural setting

Thoracic Cancer ◽

10.1111/1759-7714.12575 ◽

2017 ◽

Vol 9 (2) ◽

pp. 262-272 ◽

Cited By ~ 5

Author(s):

Denggui Wen ◽

Xiaoduo Wen ◽

Yi Yang ◽

Yuetong Chen ◽

Lizhen Wei ◽

...

Keyword(s):

Breast Cancer ◽

Cancer Incidence ◽

Socioeconomic Development ◽

Breast Cancer Incidence ◽

Female Breast Cancer ◽

Rural Setting ◽

Cancer Incidence Rate ◽

Female Breast ◽

Increasing Trend ◽

Urban Rural

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Inequalities in the burden of female breast cancer in Brazil, 1990–2017

Population Health Metrics ◽

10.1186/s12963-020-00212-5 ◽

2020 ◽

Vol 18 (S1) ◽

Author(s):

Maximiliano Ribeiro Guerra ◽

Mário Círio Nogueira ◽

Deborah Carvalho Malta ◽

Camila Soares Lima Côrrea ◽

Maria de Fatima Marinho de Souza ◽

...

Keyword(s):

Breast Cancer ◽

Incidence Rate ◽

Cancer Incidence ◽

Breast Cancer Incidence ◽

Female Breast Cancer ◽

Diagnostic Methods ◽

Cancer Death ◽

Female Breast ◽

Life Years ◽

Incidence And Mortality

Abstract Background Breast cancer is the most frequently diagnosed cancer in women and the leading cause of cancer death among females worldwide. In recent decades, breast cancer death rates have been stable or decreasing in more developed regions; however, this has not been observed in less developed regions. This study aims to evaluate inequalities in the burden of female breast cancer in Brazil including an analysis of interregional and interstate patterns in incidence, mortality and disability-adjusted life years (DALYs) rates from 1990 to 2017, and mortality-to-incidence ratio (MIR), and their association with the Socio-demographic Index (SDI). Methods Using estimates from the global burden of disease (GBD) study, we applied a spatial exploratory analysis technique to obtain measurements of global and local spatial correlation. Percentage changes of breast cancer incidence, mortality, and DALYs rates between 1990 and 2017 were calculated, and maps were developed to show the spatial distribution of the variables. Spatial panel models were adjusted to investigate the association between rates and SDI in Brazilian states. Results In Brazil, while breast cancer mortality rate have had modest reduction (−4.45%; 95% UI: −6.97; −1.76) between 1990 and 2017, the incidence rate increased substantially (+39.99%; 95% UI: 34.90; 45.39). Breast cancer incidence and mortality rates in 1990 and 2017 were higher in regions with higher SDI, i.e., the most developed ones. While SDI increased in all Brazilian states between 1990 and 2017, notably in less developed regions, MIR decreased, more notably in more developed regions. The SDI had a positive association with incidence rate and a negative association with MIR. Conclusion Such findings suggest an improvement in breast cancer survival in the period, which may be related to a broader access to diagnostic methods and treatment. This study also revealed the inequality in breast cancer outcomes among Brazilian states and may guide public policy priorities for disease control in the country.

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