Effectiveness of Birth Control Methods


Effectiveness relates directly to human error—thus, the LESS you have to do, the MORE effective the option:


 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Credit: Hatcher, Robert, et al. Contraceptive Technology. (18th edition). New York: Irvington Publishers, Inc., 2004.