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.

scholarly journals Nutritional and environmental risk factors for breast cancer: a case-control study

2018 ◽  
Vol 28 (2) ◽  
pp. 28723 ◽  
Author(s):  
Sandra Azevedo Queiroz ◽  
Iasmin Matias de Sousa ◽  
Fernanda Rafaella de Melo Silva ◽  
Clelia de Oliveira Lyra ◽  
Ana Paula Trussardi Fayh
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Family History ◽  
Case Control Study ◽  
Case Control ◽  
Case Group ◽  
History Of ◽  
Control Study ◽  
History Of Cancer ◽  
Overweight Or Obesity

AIMS: To investigate the associations between breast cancer diagnosis and nutritional and environmental factors in women from Northeast Brazil.METHODS: A case-control study included women evaluated in two hospitals specialized in cancer treatment. The case group was composed by women with breast cancer whose data were obtained during the hospitalization period for surgical treatment of the disease. The control group was selected in the same hospitals excluding the oncology ward. The following risk factors were investigated: household environmental sanitation, breastfeeding history, social class, smoking exposition, alcohol consumption and family history of cancer. A food frequency questionnaire was completed by the subjects and an evaluation of anthropometric nutritional status was made. Comparison for quantitative variables was performed using independent t-test or Mann-Whitney test. Chi-square or Fisher's exact test were used to compare categorical variables. The estimated risk associated with consumption of nutrients and food groups was assessed by OR, with a 95% confidence interval. In order to assess the effect of possible confounding factors such as excess weight or excessive caloric intake, a multivariate analysis was performed with the variables with p<0.15 in the food consumption analysis. The significance level for all analyses was set at p<0.05.RESULTS: The total sample consisted of 118 women, 59 in each group. Of all environmental risk factors investigated, poor sanitation (OR [odds ratio]=3.2, 95%CI 1.43-7.11) and family history for cancer (OR=3.11, 95%CI 1.42-6.78) were significantly associated with the diagnosis of breast cancer. Regarding anthropometric assessments, overweight or obesity and waist circumference >88cm were more prevalent in the case group (OR=2.70, 95%CI 1.28-5.70 and OR=3.10, 95%CI 1.46-6.56, respectively). Regular consumption of ultra-processed foods was identified as a risk factor for breast cancer (adjusted OR=2.35, 95%CI 1.08-5.12).CONCLUSIONS: Higher consumption of ultra-processed food, presence of overweight or obesity, waist circumference ≥88 cm, poor sanitation, and family history of cancer were risk factors for breast cancer in this sample of women living in Rio Grande do Norte state, Brazil.

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.

Risk Factors for Ectopic Pregnancy: A Multi-center Case Control Study

2021 ◽  
Author(s):  
Nooria Atta ◽  
Fahima Aram ◽  
Nafisa Naseri ◽  
Mahbooba Sahak
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Ectopic Pregnancy ◽  
Case Control Study ◽  
Case Control ◽  
Pelvic Surgery ◽  
Control Group ◽  
Case Group ◽  
History Of ◽  
Control Study

Abstract Background: Ectopic pregnancy (EP) is defined as a pregnancy in which fertilized oocyte implants outside the endometrial cavity. Although there is no known etiology for ectopic pregnancy, some risk factors of EP have been determined. It has been evident that ectopic pregnancy can be of multifactorial origin. This multicenter research aims to study risk factors associated with increased risk of ectopic pregnancy in women living in Kabul. Methods: A multicenter case control study was conducted in five tertiary maternity hospitals located in Kabul, Afghanistan. A total of 457 pregnant women were included in this study. In the case group, women with diagnosed ectopic pregnancy, while in control group women with intrauterine pregnancy were included. For each case in this study, two controls were enrolled. Results: The mean (SD) age of women in case group was 27.9 (6) years while in control group it was 26.4 (5.5) years. This difference was not statistically significant. We found a significant association between history of abortion and EP (Adj. OR=1.57; 95%CI: 1.02, 2.42). Having history of abdominal/pelvic surgery was a risk factor for EP with adjusted OR 1.94 (95%CI: 1.15, 3.30). In this study we found an increasing risk of EP in women of 35 years or older compared to younger women (Crude OR=2.26; p= 0.024). In women reporting prior EP, the chance of its recurrence was increased (Crude OR= 9.64; 95%CI: 1.1, 83.2). No association of gravidity and parity was found with EP incidence. Conclusions: In this study we found a statistically significant association between history of abdominal/pelvic surgery and EP. In addition, history of abortion was suggested as a risk factor for ectopic pregnancy. In case of having a previous EP probability of its recurrence will be increased. Women with advanced age having other potential risk factors will be facing higher risk of EP.

Breast Cancer Risk Factors in Italian Women: A Multicentric Case-Control Study

1986 ◽  
Vol 72 (3) ◽  
pp. 241-249 ◽  
Author(s):  
Antonio Toti ◽  
Silvio Agugiaro ◽  
Dino Amadori ◽  
Gianfranco Buzzi ◽  
Paolo Bruzzi ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Family History ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Case Control Study ◽  
Case Control ◽  
Female Population ◽  
History Of ◽  
Control Study

To evaluate the importance of several risk factors for breast cancer in the Italian female population, a large multicentric case-control study was conducted in 10 breast clinics in Italy. The study included 1,556 women affected by breast cancer, histologically and/or cytologically confirmed. Controls were 1,505 women admitted to a hospital in the same town, matched with cases for residence and with the same age distribution of the Italian female population. The risk factors considered in this study were family history of breast cancer, reproductive history, height and weight, use of oral contraceptives, other hormonal therapies and smoking history. The results of this study confirm the significant role of a positive family history of breast cancer (RR = 2.37); the relative risk was even higher when a first-degree relative was affected or the breast cancer was bilateral. The analysis of the reproductive history showed a significant trend of increasing risk with increasing age at first birth and, although less evident, with increasing number of children. Quetelet's index (kg/m–2) was positively correlated with breast cancer risk, mostly in postmenopausal women. Among other studied factors, only late age at menopause confirmed an increased risk for breast cancer, whereas age at menarche, use of oral contraceptives and smoking histories did not show any significant correlation with breast cancer risk. These results are in substantial agreement with other international studies, but represent an interesting contribution to studies about the Italian female population.

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

Opium Addiction and Ischemic Stroke in Isfahan, Iran: A Case-Control Study

2017 ◽  
Vol 79 (1-2) ◽  
pp. 82-85 ◽  
Author(s):  
Homa Ebrahimi ◽  
Shaghayegh Haghjoo Javanmard ◽  
Sedigheh Asgary ◽  
Leila Dehghani ◽  
Masoud Amiri ◽  
...  
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Case Control Study ◽  
Previous History ◽  
Case Control ◽  
Case Group ◽  
Significant Difference ◽  
History Of ◽  
Opium Addiction ◽  
Control Study

Background: The effect of opium addiction (OA) on cerebrovascular disease is controversial. The aim of this study was to clarify this relationship in Iranian patients with ischemic stroke. Methods: In a case-control study, 672 patients with ischemic stroke and 293 controls without a previous history of cerebrovascular or cardiovascular diseases were compared. OA as well as other risk factors such as diabetes mellitus (DM), hypertension (HTN), hyperlipidemia, tobacco smoking (TS) were compared between the 2 groups. Results: OA percentage, TS, TS amount (pack/year), HTN and DM history were significantly higher in the case group compared to controls (p < 0.05). After regression analysis between risk factors, a significant difference remained between 2 groups with regards to HTN (OR 4.21, 95% CI 3.05–5.81, p < 0.001), TS (OR 2.33, 95% CI 1.51–3.59, p < 0.001), and OA (OR 2.36, 95% CI 1.16–4.85, p = 0.018). Conclusion: Our study showed OA is a risk factor for stroke. However, a follow-up study with a larger cohort is required to confirm the results.

scholarly journals A Large-scale, Hospital-based Case-Control Study of Risk Factors of Breast Cancer According to Menopausal Status

1995 ◽  
Vol 86 (2) ◽  
pp. 146-154 ◽  
Author(s):  
Kaoru Hirose ◽  
Kazuo Tajima ◽  
Nobuyuki Hamajima ◽  
Manami Inoue ◽  
Toshiro Takezaki ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Large Scale ◽  
Case Control Study ◽  
Menopausal Status ◽  
Case Control ◽  
Control Study

scholarly journals Study of risk factors associated with breast cancer: a case control study

2021 ◽  
Vol 8 (5) ◽  
pp. 2355
Author(s):  
Ashok R. Jadhao ◽  
B. K. Sharma ◽  
Sanjivani A. Jadhao ◽  
Hitesh C. Tayade
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Case Control Study ◽  
Case Control ◽  
Communicable Diseases ◽  
Age Group ◽  
Non Communicable Diseases ◽  
Waist To Hip Ratio ◽  
History Of ◽  
Control Study

Background: Developing countries are facing double burden of infectious and non-communicable diseases. Omran gave epidemiological transition theory, which can be seen in India also. Lifestyle changes made Indian prone to non-communicable diseases. Cancer is among the most common non communicable diseases in India. Breast cancer contributes one fourth of all cancer burden in India. It is noted that more number of cases are being seen in 25 to 40 years age group. Objective of the study was to study risk factor associated with breast cancer.Methods: Hospital based case control study was conducted in tertiary cancer centre from July 2017 to December 2019. Sample size of 96 cases was calculated, though 100 cases was interviewed and similar number of age group matched controls was selected. Sociodemographic, past history of benign breast lesion, family history of breast cancer, body mass index, waist to hip ratio and reproductive risk factors was assessed.Results: The significant risk factors on multiple logistic regression were (adjusted odds ratios with 95% CI) age at menarche ≤11 years (1.16, 1.025–1.451), waist to hip ratio more than 0.85 (1.61, 1.473–1.963) and history of abortion (1.14, 1.006–1.366).Conclusions: Women with early age of menarche, higher waist to hip ratio and history of abortion were found to be at higher risk of developing breast cancer. Annual screening of high risk women, teaching self-breast examination to all women and promoting physical activity to maintain waist to hip ratio less than 0.85 should be done.

scholarly journals Risk Factors Among Breast Cancer Patients Being Treated in Tertiary Level Hospital of Nepal: A Case Control Study

2020 ◽  
Vol 42 (1) ◽  
pp. 79
Author(s):  
Asmita Rana ◽  
Anup Ghimire ◽  
Ram B Sah ◽  
Prajjwal Pyakurel ◽  
Nirmal P Shah
Keyword(s):  
Breast Cancer ◽  
Risk Factors ◽  
Benign Breast Disease ◽  
Case Control Study ◽  
Breast Disease ◽  
Case Control ◽  
P Value ◽  
Increased Risk ◽  
History Of ◽  
Control Study

Introduction Breast cancer is the leading cause of cancer death among females worldwide. Its incidence is on the rise in Nepal. However, the risk factors have not been studied in context of Nepal. The aim of this study is to identify and quantify the association of various risk factors with breast cancer in Nepal. MethodsHospital-based age-matched case-control study was conducted among 50 cases and 150 controls visiting BP Koirala Memorial Cancer Hospital, Bharatpur, Nepal. Semi-structured questionnaire was used to collect information on demographic characters, socio-economic parameters, reproductive history, dietary and personal habits, family history, history of contraception and history of benign breast disease. Height, weight, hip circumference and waist circumference were measured. ResultsMajority of the cases (52%) belonged to the age group of 46-55 years. The significant risk factors were ethnicity of Dalit/Madhesi (AOR 8.222, 95% CI 2.377-28.441, p-value 0.001), parity of 3 to 5 (AOR 5.614, 95% CI 1.140-27.639, p-value 0.03) and previous history of benign breast disease (OR 13.614, 95% CI 3.229-57.391, p-value 0.001). Hysterectomy was found to reduce the risk of breast cancer (OR 0.122, 95% CI 0.017-0.826, p-value 0.03). Knowledge of breast self-examination was significantly higher among cases than controls (AOR 36.29, 95% CI 5.788-227.555, p-value < 0.001). Knowledge of mammography was significantly lower among cases than control (AOR=0.133, 95% CI=0.028-0.647, p-value=0.01). ConclusionThis study showed a number of factors to be associated with the increased risk of breast cancer. It was observed that the mean age at diagnosis is a decade earlier than in Western countries. Genetic component was not significant in context of Nepal. It is hoped that the findings of this study will facilitate further exploration and evidenced-based preventive measures for Nepalese women.

scholarly journals Association between infection with Campylobacter species, poor oral health and environmental risk factors on esophageal cancer: a hospital-based case–control study in Thailand

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Arisara Poosari ◽  
Thitima Nutravong ◽  
Prakasit Sa-ngiamwibool ◽  
Wises Namwat ◽  
Supaporn Chatrchaiwiwatana ◽  
...  
Keyword(s):  
Risk Factors ◽  
Esophageal Cancer ◽  
Oral Hygiene ◽  
Case Control Study ◽  
Significant Risk ◽  
Case Control ◽  
Poor Oral Hygiene ◽  
History Of ◽  
Control Study ◽  
History Of Cancer

Abstract Background Previous studies have shown the association between Campylobacter species infection and that environmental factors, poor oral hygiene in particular, are linked to an increased risk of esophageal cancer (EC). However, no study has reported on these factors in Thailand. Thus, this study’s objective was to evaluate the impact of the relationship between Campylobacter infection and environmental factors on EC incidence in the population of Thailand. Methods Data from a case–control study were collected from 105 newly diagnosed EC cases and 105 controls recruited from 2007 to 2017. Infection with Campylobacter spp. was detected in the formalin-fixed paraffin-embedded (FFPE) tissue of EC taken from gastroesophageal biopsy specimens obtained from the participants, and evaluated using TaqMan® real-time PCR. Multivariable logistic regression was performed to calculate the odds ratios (ORs) and perform data analysis. Results Smoking, alcohol use, a family history of cancer, history of gastroesophageal reflux disease, poor oral hygiene and Campylobacter spp. infection were shown to be significant risk factors for EC (p  <  0.05). The combination of poor oral hygiene and infection with Campylobacter spp. constituted significant risk for EC (p  <  0.001). In addition, the risk of EC in subjects co-infected with C. rectus and C. concisus that practiced poor oral hygiene was even higher and was significant (ORadj  =  4.7; 95% CI 2.41–9.98; p  =  0.003). Conclusions In Thailand, the major risk factors for EC are smoking status, alcohol drinking, family history of cancer, GERD, poor oral hygiene and Campylobacter spp. infection. This study found Campylobacter spp. prevalence to be associated with EC and appears to be enhanced by poor oral hygiene, suggesting that a combination of poor oral hygiene and Campylobacter species infection may together act as an important etiological risk factor for EC.

Sign in / Sign up

Export Citation Format

Share Document