Table 2

Percentage of men who reported 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 and psychosocial factors measured at baseline

Independent variablesMen with a history of polyps (n = 612)Men without a history of polyps (n = 1343)
naBaselineYear 2 follow-upnaBaselineYear 2 follow-up
Baseline perceived risk
Intention to do CRCSc
Belief in salience and coherence of CRCS
Belief in efficacy of CRCS
Belief polyp removal prevents CRCS
Belief CRC can be cured
Perceived self-efficacy related to CRCS
Worry or fear of being diagnosed with CRC
Concern about CRCS discomfort
Social support and influence variables
Receptivity to family member support
Support for screening from family members
  • a Varies from the subgroup totals because of missing values on some of the independent variables.

  • b P < 0.2, chosen to identify possible variables for inclusion in the multivariable model. Test statistics were computed to compare the distribution of each independent variable for those at high and low perceived risk within the specified subgroup. P were based on χ2 tests, adjusted for clustering within worksites using SUDAAN (34) .

  • c CRC, colorectal cancer; CRCS, colorectal cancer screening.