Question

6.A team of epidemiologists began a study in 2010 to investigate the relationship between exposure to chest irradiation and the subsequent risk of breast cancer. Women who received therapy (either radiation or non-radiation) for postpartum mastitis in the 1950s, and who were free of breast cancer at the time, were enrolled in the study. The women were followed for 60 years to determine the incidence rates of breast cancer in each group.

Study Design:

Name one strength and one limitation of using this study design.

Strength:

Limitation:

Answer 1

Study design : To compare the relationship between exposure to chest irradiation and the subsequent breast cancer to a woman and to reduce the breast cancer.

Strength : The strength of this study is, the data including of both type of women's who received therapy for postpartum mastitis and who were free of breast cancer.

Limitation : Duration of study is too much.