scholarly journals Breast cancer in Mexican women: an epidemiological study with cervical cancer control

2000 ◽  
Vol 34 (2) ◽  
pp. 113-119 ◽  
Author(s):  
Víctor Tovar-Guzmán ◽  
Carlos Hernández-Girón ◽  
Eduardo Lazcano-Ponce ◽  
Isabelle Romieu ◽  
Mauricio Hernández Avila

INTRODUCTION: In Mexico, breast cancer (BC) is one of the main causes of cancer deaths in women, with increasing incidence and mortality in recent years. Therefore, the aim of the study is identify possible risk factors related to BC. METHODS: An epidemiological study of hospital cases of BC and controls with cervical uterine cancer (CUCA) was carried out at eight third level concentration hospitals in Mexico City. The total of 353 incident cases of BC and 630 controls with CUCA were identified among women younger than 75 years who had been residents of the metropolitan area of Mexico City for at least one year. Diagnosis was confirmed histologically in both groups. Variables were analyzed according to biological and statistical plausibility criteria. Univariate, bivariate and multivariate analyses were carried out. Cases and controls were stratified according to the menopausal hormonal status (pre and post menopause). RESULTS: The factors associated with BC were: higher socioeconomic level (OR= 2.77; 95%CI = 1.77 - 4.35); early menarche (OR= 1.32; 95%CI= 0.88 - 2.00); old age at first pregnancy (>31 years: OR= 5.49; 95%CI= 2.16 - 13.98) and a family history of BC (OR= 4.76; 95% CI= 2.10 - 10.79). In contrast, an increase in the duration of the breastfeeding period was a protective factor (>25 months: OR= 0.38; 95%CI= 0.20 - 0.70). CONCLUSIONS: This study contributes to the identification of risk factors for BC described in the international literature, in the population of Mexican women. Breastfeeding appears to play an important role in protecting women from BC. Because of changes in women`s lifestyles, lactation is decreasing in Mexico, and young women tend not to breastfeed or to shorten the duration of lactation.

2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e22511-e22511
Author(s):  
Fernanda Estefanía Rivera ◽  
Carolina Moreno Licea ◽  
Heriberto Medina Franco ◽  
Karina Sánchez Reyes ◽  
Miguel Varela Cardoso ◽  
...  

e22511 Background: Since 2006 breast cancer has been the main cause of cancer mortality in Mexican women representing 14% of cancer related deaths. In Mexico the incidence and mortality of breast cancer have increased in recent decades and will continue to rise. Despite the vast information media on the prevention of this cancer the diagnosis of between 50 - 70% of cases is carried out in advanced stages probably due to a limited understanding of knowledge and practices of early prevention for breast cancer. Methods: The study universe was 375 Mexican women between 30 - 58 years of age of any socioeconomic level in the open population of Orizaba Veracruz who signed the informed consent form. The socioeconomic level was determined with the index of the Asociación Mexicana de Inteligencia de Mercado y Opinión Pública. The level of knowledge was determined by means of a 10 question survey type test on knowledge and practices of early prevention of breast cancer, based on Norma Oficial Mexicana 041. Period: March-May 2019. Results: Of the 375 women, 145-38.7% corresponded to high, 109-29.1% to medium high, 62-16.5% to medium, 26-6.9% to medium low, 17-4.5% to upper low and 16-4.3% to low socioeconomic levels, respectively. Mean age: 43.17 +7.82. Levels of knowledge were high in 28-7.5%, medium in 211-56.3%, low in 134-35.7% and null in 2-0.5% women respectively. 360-96% received information about prevention of breast cancer . 248-66% knew 1 to 3 risk factors, 101-27% >4 risk factors and 26-7% no risk factors. 338-90% know where to go in case of finding an abnormality in their breasts. 272-72% know the age at which they should perform the first self examination, 76-20% know the age at which they should go with trained health personnel for the exploration of their breasts. 233-62% know the age at which the first mammogram should be performed, 91-24% know the age at which the last mammogram should be performed and 8-22% know the frequency of time that a mammogram should be performed. 247-65% have had the 2 corresponding mammograms in the last 4 years. We recognize that this study may have as a limitation that the sample of patients comprises a specific group of Mexican women, however, due to its heterogeneity, its demographic characteristics could be applicable to Mexico and Latin America. Conclusions: Knowledge of the prevention of breast cancer is medium observing a direct relationship between the socioeconomic level and the level of knowledge. Effective communication between health professionals and women must take into account the socioeconomic level of patients in order to achieve a greater understanding of it and potentially reduce the incidence and mortality rate of breast cancer. It is important not to stop emphasizing the importance of continuing medical education and patient education programs for the early detection of breast cancer by patients and first contact physicians as well as primary and secondary prevention strategies which are vitally important in developing countries.


2018 ◽  
Vol 10 (11) ◽  
pp. 1 ◽  
Author(s):  
Bashaier Abdullah Aljohar ◽  
Mohammed Ahmedhani Kilani

INTRODUCTION: Breast cancer is the most commonly diagnosed cancer in European women, accounting for 28.8% of the total number of cancer diagnosis in Europe. Over the past few decades, several factors have led to remarkable improvements in overall breast cancer outcomes in Europe, such as early detection, screening, and progresses in treatment. However, breast cancer remains the most common cancer in females in Europe, yet more there is an increase in the incidence and mortality rates in some European countries. This research summarizes the current status of breast cancer in Europe, including epidemiology, risk factors, policies, and strategies. The results can help to better identify this health problem, which could help in developing better breast cancer control or prevention strategies and policies. METHODS: A literature review was conducted using five electronic databases (PubMed, Google Scholar, ProQuest, Eurostat, BioMed) and the European Commission reports for studies that reported on epidemiology and risk factors of breast cancer, or policies and strategies that target it in Europe. In addition, the Social Ecological Model (SEM) was used in categorizing the breast cancer risk factors into different levels. RESULTS: Europe and North America have the highest rate of breast cancer globally. Incidence and prevalence of breast cancer vary across Europe, and so does its mortality rates. Breast cancer was found to be associated with a number of risk factors, including but not limited to aging, use of hormone therapy, older age at the first birth, and smoking which are common in Europe. Cancer in general, and breast cancer have attracted specific attention, and the European Union has focused many of the resources and expertise on the topic. CONCLUSION & RECOMMENDATIONS: Breast cancer remains a major public health issue in Europe, despite the efforts and actions being taken. Therefore, current efforts against breast cancer in Europe need to be revisited and improved.


2012 ◽  
Vol 13 (3) ◽  
pp. 837-846 ◽  
Author(s):  
N. Cardenas-Rodriguez ◽  
E. Lara-Padilla ◽  
C. Bandala ◽  
J. Lopez-Cruz ◽  
C. Uscanga-Carmona ◽  
...  

2000 ◽  
Vol 42 (1) ◽  
Author(s):  
Ana Laura Calderón-Garcidueñas ◽  
Franklin Uriel Parás-Barrientos ◽  
Lilia Cárdenas-Ibarra ◽  
Juan Francisco González-Guerrero ◽  
Enrique Villarreal-Ríos ◽  
...  

Author(s):  
Isabelle Soerjomataram ◽  
Claudia Allemani ◽  
Adri Voogd ◽  
Sabine Siesling

Abstract: Breast cancer is the most frequently diagnosed cancer and the leading cause of death from cancer in women. The number of women diagnosed with breast cancer world-wide is projected to increase from an estimated 1.7 million per year in 2012 to 2.2 million new cases per year by 2035. The largest component of this increase relates to demographic change (increasing and ageing populations), changes in breast cancer risk factors linked to westernization, and adoption of unhealthy lifestyles. Although major successes have been observed in improving survival from breast cancer, with a consequent reduction in mortality, these gains have mainly been observed in high-income countries. The international range in population-based survival also remains wide: the most recent 5-year net survival estimates range from <60% in some regions of sub-Saharan Africa to >85% in many high-income countries. These disparities are undoubtedly linked to inadequate access to diagnostic and treatment facilities in low-resource regions, where the number of women being diagnosed each year is still increasing and breast cancer is becoming an urgent problem. Tackling the growing burden of breast cancer will require comprehensive programmes of cancer control, with primary prevention, screening, and treatment tailored to local risk factors and health system capacities. Ongoing global initiatives on breast cancer have developed resource-stratified guidelines to promote early detection and treatment that meet the local cultural and economic situation. Wider adoption and quality assurance of such programmes will be key to reducing the observed global disparities in breast cancer incidence and survival.


2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Na Li ◽  
Yujiao Deng ◽  
Linghui Zhou ◽  
Tian Tian ◽  
Si Yang ◽  
...  

Abstract Background Statistical data on the incidence, mortality, and burden of breast cancer and the relevant risk factors are valuable for policy-making. We aimed to estimate breast cancer incidence, deaths, and disability-adjusted life years (DALYs) by country, gender, age group, and social-demographic status between 1990 and 2017. Methods We extracted breast cancer data from the 2017 Global Burden of Disease (GBD) study from 1990 through 2017 in 195 countries and territories. Data about the number of breast cancer incident cases, deaths, DALYs, and the age-standardized rates were collected. We also estimated the risk factors attributable to breast cancer deaths and DALYs using the comparative risk assessment framework of the GBD study. Results In 2017, the global incidence of breast cancer increased to 1,960,681 cases. The high social-development index (SDI) quintile included the highest number of breast cancer death cases. Between 2007 and 2017, the ASDR of breast cancer declined globally, especially in high SDI and high middle SDI countries. The related DALYs were 17,708,600 in 2017 with high middle SDI quintile as the highest contributor. Of the deaths and DALYs, alcohol use was the greatest contributor in most GBD regions and other contributors included high body mass index (BMI) and high fasting plasma glucose. Conclusion The increasing global breast cancer burden is mainly observed in lower SDI countries; in higher SDI countries, the breast cancer burden tends to be relieving. Therefore, steps against attributable risk factors should be taken to reduce breast cancer burden in lower SDI countries.


Author(s):  
Marina Marina Altagracia-Martínez ◽  
Gomez-Rico ◽  
Marina Altagracia-Martinez ◽  
Rubio-Poo ◽  
Rosario Cardenas-Elizalde ◽  
...  

2001 ◽  
Vol 35 (5) ◽  
pp. 436-442 ◽  
Author(s):  
Gulnar Azevedo S Mendonça ◽  
José Eluf-Neto

OBJECTIVE: Selecting controls is one of the most difficult tasks in the design of case-control studies. Hospital controls may be inadequate and random controls drawn from the base population may be unavailable. The aim was to assess the use of hospital visitors as controls in a case-control study on the association of organochlorinated compounds and other risk factors for breast cancer conducted in the main hospital of the "Instituto Nacional de Câncer" -- INCA (National Cancer Institute) in Rio de Janeiro (Brazil). METHODS: The study included 177 incident cases and 377 controls recruited among female visitors. Three different models of control group composition were compared: Model 1, with all selected visitors; Model 2, excluding women visiting relatives with breast cancer; and Model 3, excluding all women visiting relatives with any type of cancer. Odds ratios (OR) and 95% confidence intervals were calculated to test the associations. RESULTS: Age-adjusted OR for breast cancer associated with risk factors other than family history of cancer, except smoking and breast size, were similar in the three models. Regarding family history of all cancers, except for breast cancer, there was a decreased risk in Models 1 and 2, while in Model 3 there was an increased risk, but not statistically significant. Family history of breast cancer was a risk factor in Models 2 and 3, but no association was found in Model 1. In multivariate analysis a significant risk of breast cancer was found when there was a family history of breast cancer in Models 2 and 3 but not in Model 1. CONCLUSIONS: These results indicate that while investigating risk factors unrelated to family history of cancer, the use of hospital visitors as controls may be a valid and feasible alternative.


2003 ◽  
Vol 33 (6) ◽  
pp. 1111-1117 ◽  
Author(s):  
I. NYKLÍČEK ◽  
W. J. LOUWMAN ◽  
P. W. M. VAN NIEROP ◽  
C. J. WIJNANDS ◽  
J.-W. W. COEBERGH ◽  
...  

Background. Depression has been hypothesized to be potentially linked to an increased risk of breast cancer. Few studies have addressed this question using population-based cohorts and prospective designs, adjusting for known biomedical risk factors. This has been done in the present investigation.Method. Participants were 5191 women from a cohort of women born between 1941 and 1947 and living in the city of Eindhoven, The Netherlands. All women completed questionnaires regarding the presence of depressive symptoms (Edinburgh Depression Scale) and background (demographic, medical and lifestyle) variables. The questionnaire data were linked with the records of the Eindhoven Cancer Registry. These records provided data on breast cancer diagnoses, which took place up to 5 years after the questionnaire screening.Results. Fifty-eight women (1·1%) were found to have developed breast cancer at least 2 years after the questionnaire screening. After controlling for 15 potential risk factors, of which family history of breast cancer, hypothyroidism and unilateral oophorectomy were significant predictors of breast cancer development, women with depressive symptoms had a lower risk of subsequent breast cancer (OR=0·29, 95% CI=0·09–0·92, P=0·04).Conclusions. Depressive complaints may be associated with a protective factor involved in the development of breast cancer. Some of the possible candidates for this factor are discussed.


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