[xzins]

The study I saw compared each form of birth control WHEN PERFECTLY PRACTICED.

It didn't address the question of when any form was the only method practiced.

[Condorman]

The study I saw compared each form of birth control WHEN PERFECTLY PRACTICED. It didn't address the question of when any form was the only method practiced.

My point is typical vs. perfect use. Where the rubber hits the road, to coin a phrase.