August 12, 2015 - Colorectal Cancer Epidemiology and Screening

Question 1

Cancer Control

Answer 1

1. Removal of risk factors
2. Early detection and treatment
3. Reduction of complications

Question 2

Screening

Answer 2

The examination of asymptomatic people in order to classify them as likely or unlikely to have the disease.

Question 3

Epidemiology

Answer 3

The study of the distribution and determinants of health-related states or events in defined populations, and the applications of this study to control health problems.

Question 4

Risks for Colorectal Cancer

Answer 4

Genetic Syndromes and Family History

(Although, most cases of CRC occur sporadically)

Question 5

Colorectal Cancer Incidence and Mortality

Answer 5

4th most common cancer

2nd leading cause of cancer death

Question 6

Flexible Sigmoidoscopy

Answer 6

Can reach about 1/3 of the colon

Question 7

Test Sensitivity

Answer 7

Probability that the test will be positive given that the disease is present.

Question 8

Test Specificity

Answer 8

Probability that the test will be negative given that the disease is absent.

Question 9

Relationship of Sensitivty and Specificty

Answer 9

By increasing sensitivity, you lower specificty.

Alberta sets the FIT value for 75 ng, while Quebec sets its for 250 ng. Alberta has a higher specificty, but a lower sensitivity, while Quebec has a respectively lower specificity but a higher sensitivity.