Annual vs Biennial Screening: Diagnostic Accuracy Among Concurrent Cohorts Within the Ontario Breast Screening Program

Breast cancer screening, diagnostic accuracy and health care policies.

Effect of screening result on waiting times to assessment and breast cancer diagnosis: results from the Ontario Breast Screening Program.

BACKGROUND The effect of severity of screening result on delays to diagnosis has primarily been examined for mammographic abnormalities. This study will examine delays to assessment and diagnosis for women with an abnormal mammogram compared to women with an abnormal clinical breast examination (CBE) or abnormal CBE and mammogram. METHODS Using data routinely collected by Ontario Breast Scree...

Tumor characteristics associated with mammographic detection of breast cancer in the Ontario breast screening program.

BACKGROUND Few studies have compared the prognostic value of tumor characteristics by type of breast cancer diagnosed in the interval between mammographic screenings with screen-detected breast cancers. METHODS We conducted a case-case study within the cohort of women (n = 431 480) in the Ontario Breast Screening Program who were aged 50 years and older and were screened between January 1, 19...

Effectiveness of screening with annual magnetic resonance imaging and mammography: results of the initial screen from the ontario high risk breast screening program.

PURPOSE The Ontario Breast Screening Program expanded in July 2011 to screen women age 30 to 69 years at high risk for breast cancer with annual magnetic resonance imaging (MRI) and digital mammography. To the best of our knowledge, this is the first organized screening program for women at high risk for breast cancer. PATIENTS AND METHODS Performance measures after assessment were compared w...

Promoting cancer screening among Ontario Chinese women.

OBJECTIVES Cancer screening participation is typically low among newcomers to Canada. Consequently, mortality and morbidity rates are higher in ethno/cultural populations. There are inherent challenges in reaching these population groups to increase awareness and participation in cancer screening. Many reports have cited the need for culturally appropriate materials and multi-pronged strategies...