Studies Included	Comments	Conclusions
All RCTs*	Benefits include a potential reduction in mortality, and less aggressive therapy and improved cosmetics with early diagnosis.	Current evidence does not suggest the inclusion of, or the exclusion from, the periodic health examination of women aged 40 to 49 years.
	Risks include increased biopsy rates and psychological effects of false reassurance or false-positive results.	Canadian women should be informed of potential benefits and risks of screening and assisted in deciding at what age they wish to initiate the procedure.

^*RCT indicates randomized controlled trial.