Colorectal Cancer Risk Calculator

Sex

Current Age

Project Forward (years)

Screening History

First-Degree Relatives with CRC

Regular Aspirin/NSAID Use

5+ Vegetable Servings/Day

BMI Category

Vigorous Activity (hrs/week)

Smoking (men)

Estrogen/HRT Use, last 2yrs (women)

Your risk

0.12%

Average for your age/sex

0.12%

Average

Your estimated risk is comparable to the average for your age and sex.

Both are 10-year risk estimates from the same model — the average uses SEER baseline incidence with no personal risk factors applied.

Questions to bring to your next appointment

Based on my risk factors, am I due for a colonoscopy or other screening sooner than the standard schedule?
Does my family history warrant earlier or more frequent screening for me or my relatives?
Which of my risk factors here are the most worth changing first?

Freedman et al. 2009 model, white men/women age 50+ — informational only, not a clinical risk assessment.

How this is calculated

Implements Freedman et al. 2009: risk-factor odds ratios scale SEER baseline incidence for each colorectal site (proximal, distal, rectal), summed over the projection window. Two documented simplifications: one interaction term is treated as independent main effects, and competing mortality is omitted.