scholarly journals Breast cancer biologic and etiologic heterogeneity by young age and menopausal status in the Carolina Breast Cancer Study: a case-control study

2016 ◽  
Vol 18 (1) ◽  
Author(s):  
Lynn Chollet-Hinton ◽  
Carey K. Anders ◽  
Chiu-Kit Tse ◽  
Mary Beth Bell ◽  
Yang Claire Yang ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Case Control Study ◽  
Menopausal Status ◽  
Case Control ◽  
Young Age ◽  
Cancer Study ◽  
Breast Cancer Study ◽  
Etiologic Heterogeneity ◽  
Control Study ◽  
Carolina Breast Cancer Study

scholarly journals Exposure to fogger trucks and breast cancer incidence in the Long Island Breast Cancer Study Project: a case–control study

2013 ◽  
Vol 12 (1) ◽  
Author(s):  
Alexandra J White ◽  
Susan L Teitelbaum ◽  
Mary S Wolff ◽  
Steven D Stellman ◽  
Alfred I Neugut ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cancer Incidence ◽  
Case Control Study ◽  
Long Island ◽  
Breast Cancer Incidence ◽  
Case Control ◽  
Cancer Study ◽  
Breast Cancer Study ◽  
Control Study

scholarly journals Sedentary Behavior and Alcohol Consumption Increase Breast Cancer Risk Regardless of Menopausal Status: A Case-Control Study

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1871 ◽  
Author(s):  
Jordana Carolina Marques Godinho-Mota ◽  
Larissa Vaz Gonçalves ◽  
Joao Felipe Mota ◽  
Leonardo Ribeiro Soares ◽  
Raquel Machado Schincaglia ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Alcohol Consumption ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Sedentary Behavior ◽  
Case Control Study ◽  
Menopausal Status ◽  
Case Control ◽  
Alcoholic Beverages ◽  
Control Study

Identification of modifiable risk factors for breast cancer is critical for primary prevention of the disease. The aim of this study was to evaluate how certain lifestyle variables modify the chances of developing breast cancer based on menopausal status. A case-control study was performed in a group of 542 women, 197 who were diagnosed with breast cancer and 344 control individuals. The groups were matched by age, body mass index, and menopausal status. Participants were evaluated for level of physical activity, alcohol consumption, smoking habit, weight, height, and waist circumference (WC). A multivariate logistic regression model was used to estimate odds ratios and 95% confidence intervals (95% CI). Regular consumption of alcoholic beverages (2.91, 95% CI 1.58–5.38 and 1.86, 95% CI 1.15–3.03) and sedentary behavior (2.08; 95% CI 1.12–3.85 and 1.81; 95% CI 1.12–2.94) were associated with breast cancer risk in pre- and postmenopausal women, respectively. High WC (3.31, 95% CI 1.45–7.55) was associated with an increased risk of developing breast cancer in premenopausal women. While in postmenopausal women, current smoking (2.43, 95% CI 1.01–5.83) or previous history of smoking (1.90; 95% CI 1.14–3.14) increased the chances of developing breast cancer. Sedentary behavior and current consumption of alcoholic beverages were more likely to increase the risk of developing breast cancer regardless of menopausal status.

Case control study of hormone replacement therapy (HRT) and breast cancer in Japanese women

2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 10012-10012
Author(s):  
M. Takeuchi ◽  
T. Saeki ◽  
M. Sano ◽  
H. Sonoo ◽  
H. Honjo ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Case Control Study ◽  
Menopausal Status ◽  
Previous History ◽  
Case Control ◽  
Japanese Women ◽  
Sensitivity Analyses ◽  
Control Group ◽  
History Of ◽  
Control Study

10012 Background: Some prospective studies in US and UK (represented by Women’s Health Initiative and Million Women Study) show that HRT use may increase the risk of breast cancer. However, it is unclear whether or not this perspective is applicable to Japanese women, due to several factors such as the difference in incidence of breast cancer, difference in HRT prevalence, which are to be concerned in this study. To investigate the relationship between HRT use and breast cancer, a case-control study was conducted in Japan. Methods: We sent self-administered questionnaire to 4,500 cases who have a previous history of confirmed histological breast cancer and 4,500 controls who were selected according to the inclusion criteria. All the subjects were between age 45 and 69 at the time of enrollment. Among these subjects, 3,434 in case group and 2,427 in control group sent back their questionnaire (total 5,861). The datacenter was run in Kitasato Univ. and the statistical analysis was performed using SAS (version 9.1). Control was selected by considering the screening record for GI disease and respiratory disorders, with no previous history of breast cancer, gynecological and hormonal disease at the time of screening. We asked about past history of exposure to the factors supposed to be breast cancer-causing; previous or current use of HRT, age at diagnosis, academic background, BMI, lifestyle habits, age of menarche, birth history, history of breast feeding, family history, use of contraceptive agents and menopausal status. Results: As the main analysis result, 164 (5.0%) out of 3,316 cases and 253 (7.4%) out of 2355 controls had used HRT (Odds ratio 0.432 [95% CI 0.352–0.530]. Conclusions: The result of this study shows that HRT users were less likely to develop breast cancer than never users. However, in this study, there was a difference in the observation period for the past use of HRT between cases and controls. Considering the transition of HRT prevalence in Japan, there may be a possibility that this difference can be a cause of a serious bias for the main analysis result. Further sensitivity analyses are needed to evaluate the robustness of the findings and this point is under consideration. No significant financial relationships to disclose.

scholarly journals An evaluation of the risk factors of breast cancer in women in Ilam Province: a case–control study based on hospital

2020 ◽  
pp. BMT49
Author(s):  
Shoboo Rahmati ◽  
Milad Azami ◽  
Zahra Jaafari ◽  
Nasrin Pouratar ◽  
Khairollah Asodollahi
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Case Control Study ◽  
Menopausal Status ◽  
Oral Contraceptive Pill ◽  
Disease Status ◽  
Case Control ◽  
Case Group ◽  
History Of ◽  
Control Study

Aims: The present study aimed to identify the most associated risk factors of breast cancer in Ilam province in 2015–2016. Materials & methods: In this case–control study, the case group consisted of 50 women with breast cancer with a definitive diagnosis from date 23 September 2015 to 22 September 2016. The two groups were group matched in terms of age. Data were collected through interviews and medical records. Results: According to the results, there was a significant relationship between the disease status and variables of family history, history of irregular menstrual cycles, history of breastfeeding, menopausal status, history of oral contraceptive pill consumption, BMI, menarche and number of pregnancies (p < 0.05). Conclusion: Regarding decisive risk factors of breast cancer, more studies with larger sample sizes that take into account more risk factors are necessary.

Risk factors for breast cancer by age and menopausal status: a case-control study in Singapore

1992 ◽  
Vol 3 (4) ◽  
pp. 313-322 ◽  
Author(s):  
Hin Peng Lee ◽  
Lynn Gourley ◽  
Stephen W. Duffy ◽  
Jacques Est�ve ◽  
James Lee ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Case Control Study ◽  
Menopausal Status ◽  
Case Control ◽  
Control Study

scholarly journals A case–control study on seaweed consumption and the risk of breast cancer

2009 ◽  
Vol 103 (9) ◽  
pp. 1345-1353 ◽  
Author(s):  
Yoon Jung Yang ◽  
Seok-Jin Nam ◽  
Gu Kong ◽  
Mi Kyung Kim
Keyword(s):  
Breast Cancer ◽  
Case Control Study ◽  
Conditional Logistic Regression ◽  
Menopausal Status ◽  
Daily Intake ◽  
Premenopausal Women ◽  
Case Control ◽  
Dietary Factors ◽  
Average Intake ◽  
Control Study

Gim (Porphyra sp.) and miyeok (Undaria pinnatifida) are the seaweeds most consumed by Koreans. We investigated the association between the intake of gim and miyeok and the risk of breast cancer in a case–control study. Cases were 362 women aged 30–65 years old, who were histologically confirmed to have breast cancer. Controls visiting the same hospital were matched to cases according to their age (sd 2 years) and menopausal status. Food intake was estimated by the quantitative FFQ with 121 items, including gim and miyeok. Conditional logistic regression analysis was used to obtain the OR and corresponding 95 % CI. The average intake and consumption frequency of gim in cases were lower than in controls. The daily intake of gim was inversely associated with the risk of breast cancer (5th v. 1st quintile, OR, 0·48; 95 % CI, 0·27, 0·86; P for trend, 0·026) after adjustment for potential confounders. After stratification analysis was performed according to menopausal status, premenopausal women (5th v. 1st quintile, OR, 0·44; 95 % CI, 0·24, 0·80; P for trend, 0·007) and postmenopausal women (5th v. 1st quintile, OR, 0·32; 95 % CI, 0·13, 0·80; P for trend, 0·06) showed similar inverse associations between gim intake and the risk of breast cancer after an adjustment for potential confounders except dietary factors. Miyeok consumption did not have any significant associations with breast cancer. These results suggest that high intake of gim may decrease the risk of breast cancer.

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