Table 5

Prevalence, sensitivity, and specificity, including 95% confidence intervals (95% CI) of the multivariable models for a perceived risk scale score ≥3 at baseline (cross-sectional analyses) and at year 2 of follow-up (prospective analyses) by personal history of colorectal polyps

Men with a history of polypsMen without a history of polyps
BaselineYear 2 follow-upBaselineYear 2 follow-up
na%(95% CI)n%(95% CI)n%(95% CI)n%(95% CI)
Prevalenceb57352.9(48.8–57.0)60242.5(38.6–46.4)123521.1(18.8–23.4)134315.4(13.5–17.3)
Sensitivityc30354.1(48.5–59.7)25673.8(68.4–79.2)26156.5(50.5–62.5)20768.6(62.3–74.9)
Specificityd27065.2(59.5–70.9)34669.1(64.2–74.0)97465.9(62.9–68.9)113682.5(80.3–84.7)
  • a Based on the number of respondents included in the multivariable analysis.

  • b Percentage with increased perceived risk.

  • c Number of men correctly predicted with increased perceived risk divided by the number of men observed with increased perceived risk.

  • d Number of men correctly predicted with low perceived risk divided by the number of men observed with low perceived risk.