Colorectal Cancer Risk Assessment Calculator

Personalized Risk of Developing Colorectal Cancer

While a patient's risk may be accurately estimated, these predictions do not allow one to say precisely which patient will develop colorectal cancer.
Some patients who do not develop colorectal cancer have higher risk estimates than patients who do develop colorectal cancer.
As a reminder, this tool was designed for use by health professionals. If you are not a health professional, you are encouraged to print these results and discuss them with your health care provider.
The tool uses a patient's medical history and the history of colorectal cancer among their first-degree relatives (father, mother, sisters, brothers, sons, daughters) to estimate absolute colorectal cancer risk—the chance or probability of developing colorectal cancer over a defined time period.

5—Year Absolute Risk of Developing Colorectal Cancer

Patient Risk

Average Risk

Lifetime Risk of Developing Colorectal Cancer

Patient Risk

Average Risk

Patient's Risk

Average Risk

5-Year

Lifetime

Demographics

Is the patient Hispanic or Latino?

Yes

To which of the following does the patient identify

This tool does not yet apply to American Indians and Alaska Natives

White

Black/African American

Asian American or Pacific Islander

What is the patient's age?

This tool calculates risk for men and women 45 to 85 years of age.

What is the patient’s sex?

Male

Female

What is the patient's height and weight without shoes?

ft. in. lbs.

Diet & Physical Activity

In the last month, about how many servings of vegetables or leafy green salads did the patient eat per week?

Includes leafy green salads and raw, cooked, canned, and frozen vegetables (including beans)

Does not include fried vegetables like French fries or fried potatoes.

In the last month, how much did the patient usually eat in each serving of vegetables or leafy green salads?

In the last year, in how many months did the patient do any kind of moderate physical activity?

Moderate activities DO NOT cause the patient to sweat or breathe hard. Some examples include vacuuming, gardening, easy walking for exercise, and so on.

During those months, on average, about how many hours per week did the patient do moderate physical activities?

In the last year, in how many months, if any, did the patient do any kind of vigorous activity?

Vigorous activities include all activities that DO cause the patient to sweat or breathe hard. Some examples include racquet sports, basketball, running, fast biking, exercise class, weight lifting, backpacking, swimming, and heavy labor such as shoveling dirt.

During those months, on average, about how many hours per week did the patient do vigorous physical activities?

Medical History

Family History

Does the patient have any immediate relatives (mother, father, brothers or sisters, sons or daughters) who ever had cancer of the colon or rectum (cancer of the lower intestine)?

Yes

Doesn't know

How many of these relatives had cancer of the colon or rectum (cancer of the lower intestine)?

2 or more

Doesn't know

Cigarette Usage

Has the patient smoked 100 or more cigarettes in his lifetime?

Yes

Unknown

How old was the patient when he started smoking cigarettes on a regular basis (at least one cigarette a day for six months or longer)?

Does the patient currently smoke cigarettes?

Yes

How old was the patient when he quit smoking cigarettes completely? (If the patient quit more than once, use the most recent age he quit smoking completely.)

When the patient was smoking regularly, how many cigarettes did he smoke per day?

Colorectal Cancer Risk Assessment Calculator - NCI

Personalized Risk of Developing Colorectal Cancer

Your Answers

Demographics

Diet & Physical Activity

Medical History

Family History

Cigarette Usage