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Table 2 Knowledge regarding CRC screening before vs. after viewing the decision aid (N = 80)

From: Testing a Spanish-language colorectal cancer screening decision aid in Latinos with limited English proficiency: Results from a pre-post trial and four month follow-up survey

Outcome % Correct Change* 95% CI
Pre Post
Knowledge Score 20% 72% +52% [46,59]
There is only one test for CRC screening (false) 14% 60% +46% [34,59]
It is not possible to do a CRC screening test at home (false) 24% 84% +40% [48,72]
Age to begin screening (50 years old) 44% 84% +40% [27,54]
FOBT is done every 3 years (false) 6% 65% +59% [46,71]
One can drive to work immediately after colonoscopy (false) 28% 75% +47% [35,61]
No risks to colonoscopy procedure (false) 6% 69% +63% [51,74]
  1. *p < 0.0001 by paired t test for knowledge score.
  2. p < 0.0001 McNemar test for individual items.