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Table 3 Knowledge and receipt of CRC screening by literacy level

From: The effect of health literacy on knowledge and receipt of colorectal cancer screening: a survey study

Outcome Limited Literacy
N (%) (n = 24)
Adequate Literacy
N (%) (n = 26)
RR (95% CI)* p-value†
Able to name a CRC screening test 3 (13) 18 (69) 0.21 (0.07, 0.64) <0.01
Able to name or describe CRC screening test 12 (50) 25 (96) 0.56 (0.38, 0.83) <0.01
Currently screened£ 13 (54) 15 (58) 0.99 (0.64, 1.55) 0.88
  1. *Adjusted Relative Risk using Cochran-Mantel-Haenszel methods: RR adjusted for race for knowledge outcomes; and age group (median split; median age = 61.5 yrs.) for receipt of screening.
  2. †p-value from Cochran-Mantel-Haenszel test
  3. ‡Relevant screening tests include fecal occult blood testing (or stool test kit), flexible sigmoidoscopy, and colonoscopy.
  4. £ Currently screened defined as receiving fecal occult blood testing within the last year, flexible sigmoidoscopy within the last five years, or colonoscopy within the last 10 years.