CTR CTR Epidemiology & Cancer Statistics 1

Question 1

Which U.S. national program collects population-based cancer incidence and survival data from registries across the country?

Accepted Answer

SEER (Surveillance, Epidemiology, and End Results)

Answer

SEER, maintained by NCI, is the premier population-based program collecting cancer incidence and survival data from geographically diverse U.S. registries.

Question 2

Cancer incidence rate is calculated per how many persons in standard epidemiologic reporting?

Accepted Answer

100,000 persons

Answer

Cancer incidence and mortality rates are conventionally expressed per 100,000 persons in the population to allow meaningful comparison across groups.

Question 3

What does age-adjusted (age-standardized) cancer rate allow researchers to do?

Accepted Answer

Compare rates across populations with different age distributions

Answer

Age-adjustment removes the confounding effect of age so that rates in populations with different age structures can be validly compared.

Question 4

The five-year relative survival rate compares observed survival of cancer patients to the survival of which comparison group?

Accepted Answer

A matched general population of the same age, sex, and race

Answer

Relative survival divides observed survival in cancer patients by expected survival in a demographically matched general population to isolate the cancer's impact.

Question 5

Which term describes the total number of persons living with a cancer diagnosis at a given point in time?

Accepted Answer

Prevalence

Answer

Prevalence measures the total existing cancer case burden in a population at a specific time, combining new and existing survivors.

(CTR) Certified Tumor Registrar Practice Test

(CTR) Certified Tumor Registrar Practice Test

CTR CTR Epidemiology & Cancer Statistics 1