Table 4

Odds ratios and 95% confidence intervalsa 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 and independent variables measured at baseline

Independent variablesMen with a history of polypsMen without a history of polyps
Baseline (n = 573)bYear 2 follow-up (n = 602)bBaseline (n = 1235)bYear 2 follow-up (n = 1343)b
Intervention group (Yes/No)1.0 (0.7–1.4)0.8 (0.5–1.1)0.9 (0.6–1.4)1.2 (0.8–1.8)
Family history of CRCc or polyps (Yes/No)1.7 (1.3–2.3)1.7 (1.1–2.6)1.8 (1.4–2.4)1.6 (1.1–2.4)
Exam status between baseline and year 2
No exams0.4 (0.2–0.7)0.1 (0.07–0.2)
Normal exams0.3 (0.2–0.5)0.2 (0.1–0.3)
Abnormal exams1.01.0
Current smoker (Yes/No)1.6 (1.1–2.2)
Baseline perceived risk (≥3, <3)NA5.4 (3.7–7.6)NA8.3 (5.7–12.1)
Support for screening from family members (≥3, <3)3.7 (2.2–6.3)3.2 (2.0–5.1)
Fear or worry about being diagnosed with CRC (≥3, <3)2.3 (1.5–3.7)3.0 (1.9–4.6)
Belief in salience and coherence of screening (≥3, <3)3.9 (1.4–11.1)
Intention to do CRCS (≥3, <3)2.0 (1.0–4.1)
CRC screening offered at worksite (Yes/No)0.6 (0.4–0.9)
  • a Computed taking clustering into account using SUDAAN (34) .

  • b Varies from subgroup totals because of missing values on some independent variables. Numbers in parentheses, 95% confidence interval.

  • c CRC, colorectal cancer; CRCS, colorectal cancer screening; NA, not applicable.