Key Findings Researchers found a 1 % increase in stage I diagnoses for four of the five
cancers detectable by
screening: breast (from 47.8 % to 48.9 %) and cervical
cancer (47.3 % vs. 48.8 %, although this difference was not statistically
significant) in women, and
lung (from 16.6 % to 17.7 %) and colorectal
cancer (22.8 % vs. 23.7 %) in men and women.