Contraceptive Failure Table

The use of contraceptive methods in Canada is unrelated to the effectiveness of the methods, demonstrating the need for improved women counseling about contraceptive effectiveness.

SOGC Clinical Practice Guideline, Canadian Contraception Consensus Part 1 and Part 2
Trussel J. Contraceptive Failure in the United States. Contraception. 2011; 83 (2011) 397-404.
Costescu D. and Guilbert E. et al. Preceptorship Program - Modules 1 and 4