Study of the prevalence of breast cancer risk factors at a Specialty Hospital in Manabí – Ecuador
Published
How to Cite
Issue
Section
License
Copyright (c) 2025 Rosa M. Mieles Resabala, Mildred Valeria Pico P., Alfredo Marín Pérez, Jamil Cedillo-Balcázar

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
DOI:
https://doi.org/10.33821/764Keywords:
breast cancer, risk factors, mammography, prevalenceAbstract
Background: Breast cancer is the most commonly diagnosed cancer among women in the western hemisphere and the one with the highest incidence in the female population from Ecuador; the predisposition to develop breast cancer responds to several factors. Objective: To determine breast cancer risk factors in patients of the mammography office at the Dr. Verdi Cevallos Regional Hospital. Methods: Observational, descriptive, retrospective, and cross-sectional research with a sample of 143 women who attended mammography screening at said Hospital during the period January-December 2020. A 22-question survey on risk factors for breast cancer prepared by specialists in the area was implemented. Results and conclusions: The most significant risk factors in the study, in order of frequency, were family history of cancer, not breastfeeding, early menarche, and hormone replacement therapy.
Downloads
References
Ministerio de Salud Pública (Ecuador). Ecuador figures – Breast Cancer [Internet]. Quito: Ministerio de Salud Pública; [cited 2021 Mar 4]. Available from: https://www.salud.gob.ec/cifras-de-ecuador-cancer-demama/
Schwartz GF. Carcinoma of the breast. In: Holzheimer RG, Mannick JA, editors. Surgical Treatment: Evidence-Based and Problem-Oriented [Internet]. Munich: Zuckschwerdt; 2001 [cited 2021 Mar 4]. Available at: https://www.ncbi.nlm.nih.gov/books/NBK6879/
Polyak K. Breast cancer: origins and evolution. J Clin Invest. 2007 Nov 1;117(11):3155-63.
Sun YS, Zhao Z, Yang ZN, Xu F, Lu HJ, Zhu ZY, et al. Risk factors and prevention of breast cancer. Int J Biol Sci. 2017 Nov 1;13(11):1387-97.
Knaul FM, Nigenda G, Lozano R, Arreola-Ornelas H, Langer A, Frenk J. Breast cancer in Mexico: an urgent priority. Salud Publica Mex. 2009;51 Suppl 2:s335-44.
Torres-Arreola LP, Doubova SV. Breast cancer: early detection at the primary care level. Rev Med Inst Mex Seguro Soc. 2007;45(2):157-66.
International Agency for Research on Cancer (IARC). GLOBOCAN 2008: Cancer Incidence and Mortality Worldwide [Internet]. Lyon: IARC; [cited 2021 Jan 23]. Available at: https://www.iarc.who.int/news-events/globocan-2008-cancer-incidence-and-mortality-worldwide/
Ecuador - Population pyramid 2019 [Internet]. datosmacro.com. [cited 2021 Mar 8]. Available at: https://datosmacro.expansion.com/demografia/estructura-poblacion/ecuador
Torres-Mejía G, Ángeles-Llerenas A. Reproductive factors and breast cancer: key findings in Latin America and worldwide. Salud Publica Mex. 2009;51 Suppl 2:s165-71.
Siegel RL, Miller KD, Jemal A. Cancer statistics, 2017. CA Cancer J Clin. 2017;67(1):7-30.
Islami F, Liu Y, Jemal A, Zhou J, Weiderpass E, Colditz G, et al. Breastfeeding and breast cancer risk by receptor status—a systematic review and meta-analysis. Ann Oncol. 2015 Dec;26(12):2398-407.
Moslemi D, Ghanbari M, Esmaelzade S, Delavar MA. 77P Menarche age, contraception use and gravidity as risk factors for breast cancer: associations in a case-control study. Ann Oncol. 2016 Dec 1;27(suppl 9):ix23.
Izquierdo-González M, González-Pérez U, Alerm-González A, Jáuregui-Haza U. Quality of life in a group of Cuban women with breast cancer. Rev Haban Cienc Med [Internet]. 2008 Jun [cited 2024 Dec 13];7(2):[no pagination]. Available at: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1729-519X2008000200014&lng=es
Ganz PA, Greendale GA, Petersen L, Kahn B, Bower JE. Breast cancer in younger women: reproductive and late health effects of treatment. J Clin Oncol. 2003 Nov 15;21(22):4184-93.
Park YM, Bookwalter DB, O'Brien KM, Jackson CL, Weinberg CR, Sandler DP. A prospective study of type 2 diabetes, metformin use, and risk of breast cancer. Ann Oncol. 2021 Mar;32(3):351-9.
Uriburu JV, Gómez MA, Macagno A, Margossian J, Rojas RR, Uriburu JL. Breast trauma. Rev Argent Cir. 1994;[no volume]:140-5.
Farley M, Minkoff JR. Breast cancer screening and trauma history. Women Health. 2001;34(2):15-27.
Brewer HR, Jones ME, Schoemaker MJ, Ashworth A, Swerdlow AJ. Family history and risk of breast cancer: an analysis accounting for family structure. Breast Cancer Res Treat. 2017 Aug;165(1):193-200.
Amadou A, Torres-Mejía G, Hainaut P, Romieu I. Breast cancer in Latin America: global burden, patterns, and risk factors. Salud Publica Mex. 2014 Sep 13;56(5):547.
Washbrook E. Risk factors and epidemiology of breast cancer. Womens Health (Lond Engl). 2006 Jan;2(1):9-13.
Cuzick J. Hormone replacement therapy and the risk of breast cancer. Eur J Cancer. 2008 Nov; 44(16):2344-9.
Marchand E, Uzan C. Breast nodules. EMC - Tratado Med. 2016 Mar 1;20(1):1-5.
McClintock AH, Golob AL, Laya MB. Breast cancer risk assessment. Mayo Clin Proc. 2020 Jun;95(6):1268-75.
Brentnall AR, Cuzick J, Buist DSM, Bowles EJA. Long-term accuracy of breast cancer risk assessment combining classic risk factors and breast density. JAMA Oncol. 2018 Sep 13;4(9):e180174.
