Risk Factors and Mortality Among Women With Interval Breast Cancer vs Screen-Detected Breast Cancer.

Importance: The risk factors for interval breast cancer (IBC) compared with those for screen-detected breast cancer (SBC) and their association with mortality outcomes have not yet been evaluated among Korean women.

Objective: To evaluate risk factors associated with IBC and survival among Korean women with IBC compared with those with SBC.

Design, Setting, And Participants: This retrospective cohort study used data from the Korean National Health Insurance Service Database.

Increased risk of cancer and cancer-related mortality in middle-aged Korean women with prediabetes and diabetes: a population-based study.

Objectives: This study investigated the risk of developing and dying from all types of cancer, as well as cancer-specific mortality, in women diagnosed with prediabetes and diabetes.

Methods: We included women aged ≥40 years who underwent cancer screening from 2009 to 2014 with follow-up until 2020. Diabetes status was determined based on fasting plasma glucose levels, self-reported history of diabetes, and the use of antidiabetic medication.

Increased risk of pancreatic, thyroid, prostate and breast cancers in men with a family history of breast cancer: A population-based study.

The association between a family history of breast cancer (FHBC) in female first-degree relatives (FDRs) and cancer risk in men has not been evaluated. This study aimed to compare the risks of overall and site-specific cancers in men with and without FHBC. A population-based study was conducted with 3 329 106 men aged ≥40 years who underwent national cancer screening between 2013 and 2014.

Association between Age at Eradication and the Risk of Gastric Cancer Stratified by Family History of Gastric Cancer: A Nationwide Population-Based Study.

Introduction: This study compares the risk of GC according to age at eradication, stratified based on the presence of family history of GC using a population-based large cohort.

Method: We analyzed individuals who underwent GC screening between 2013 and 2014 and received eradication therapy before screening.

Results: Among 1,888,815 -treated patients, 2610/294,706 and 9332/1,594,109 patients with and without a family history of GC, respectively, developed GC.

Association of Breast Cancer Family History With Breast Density Over Time in Korean Women.

Importance: Evidence suggests that women with a family history of breast cancer (FHBC) in first-degree relatives have a higher level of breast density; however, studies of premenopausal women remain limited.

Objective: To investigate the association between FHBC and mammographic breast density and breast density changes among premenopausal women.

Design, Setting, And Participants: This retrospective cohort study used population-based data obtained from the National Health Insurance Service-National Health Information Database of Korea.

Microcalcifications, mammographic breast density, and risk of breast cancer: a cohort study.

Background: Breast density and microcalcifications are strongly associated with the risk of breast cancer. However, few studies have evaluated the combined association between these two factors and breast cancer risk. We investigated the association between breast density, microcalcifications, and risk of breast cancer.

Association between A Family History of Colorectal Cancer and the Risk of Colorectal Cancer: A Nationwide Population-Based Study.

Large-scale Asian studies on this topic are lacking. We evaluated the CRC risk associated with family history in the Korean population. We analyzed the data of participants aged ≥40 years who underwent national cancer screening between 2013 and 2014.

Association of Longitudinal Mammographic Breast Density Changes with Subsequent Breast Cancer Risk.

Background Although Breast Imaging Reporting and Data System (BI-RADS) density classification has been used to assess future breast cancer risk, its reliability and validity are still debated in literature. Purpose To determine the association between overall longitudinal changes in mammographic breast density and breast cancer risk stratified by menopausal status. Materials and Methods In a retrospective cohort study using the Korean National Health Insurance Service database, women aged at least 40 years without a history of cancer who underwent three consecutive biennial mammographic screenings in 2009-2014 were followed up through December 2020.

Longitudinal Changes in Smoking Habits in Women and Subsequent Risk of Cancer.

Introduction: This study investigated the association between longitudinal smoking habit changes and cancer risk in a cohort of Korean women.

Methods: Study population included women aged ≥40 years who underwent 2 biennial cancer screenings (2009-2010 and 2011-2012) and were followed up until 2020. This analysis was conducted in 2021.

Family history of breast cancer, mammographic breast density and breast cancer risk: Findings from a cohort study of Korean women.

Background: This study investigated whether the association between family history of breast cancer in first-degree relatives and breast cancer risk varies by breast density.

Methods: Women aged 40 years and older who underwent screening between 2009 and 2010 were followed up until 2020. Family history was assessed using a self-reported questionnaire.

Association between Micronutrient Intake and Breast Cancer Risk According to Body Mass Index in South Korean Adult Women: A Cohort Study.

This study investigated the association between micronutrient intake and breast cancer risk in South Korean adult women. This association was stratified according to body mass index (BMI) categories. Data from the Korean Genome and Epidemiology Study (KoGES) and the Health Examinee Study were analyzed.

Consecutive gain and loss in body weight and waist circumference with risk of subsequent breast cancer in Korean women.

Background: This study investigated the association between longitudinal changes in weight and waist circumference and breast cancer risk according to menopausal status.

Methods: This retrospective cohort study used data from the population-based Korean National Health Insurance Service (NHI) database. The study population included women aged ≥40 years who consecutively underwent three biennial breast cancer screenings between 2009-2014 and were followed up until 2020.

Mammographic Breast Density, Benign Breast Disease, and Subsequent Breast Cancer Risk in 3.9 Million Korean Women.

Background Mammographic breast density and benign breast disease are strong risk factors for breast cancer. Accordingly, women with both risk factors may have a markedly high risk for developing breast cancer. Purpose To investigate the risk of breast cancer associated with the combination of mammographic density and benign breast disease in Korean women, where population-based mammographic breast cancer screening is provided for all women aged at least 40 years.

Mammographic breast density, body mass index and risk of breast cancer in Korean women aged 75 years and older.

Mammographic breast density and body mass index (BMI) are strong risk factors of breast cancer, but few studies have investigated these factors in older women. Our study assessed the association between breast density, BMI and the breast cancer risk among women aged ≥75 years. We included women who underwent breast cancer screening between 2009 and 2014 and were followed up until 2020.