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Pearl/Perl Index?

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Old 06-15-2005, 06:02 PM   #1
Join Date: Jun 2005
Posts: 311
star_shine_2010 HB User
Pearl/Perl Index?

I saw a post where someone talked about a perl/pearl index for their birth control pill. I was wondering if anyone else knows anything about this, or where I could find out the pearl/perl index for ovcon-35?

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Old 06-16-2005, 04:14 AM   #2
Join Date: Apr 2005
Posts: 60
laomy HB User
Re: Pearl/Perl Index?

The pearl index is a standard for how effective a birth control pill is. I know that mircette has a pearl index of 1.02, and ortho tricyclen lo has a pearl index of 2.36, from what I have read. Methods of contraception are compared by the Pearl index. A high Pearl index stands for a high chance of unintentionally getting pregnant; a low value for a low chance. The Pearl index will be determined by the number of unintentional pregnancies related to 100 women years. E.g. 100 women can contracept for 1 year each with the method that is going to be examined. If three pregnancies occur during this period in this group, the Pearl index will be 3.0.
I dont know if it is just a measure of the drug's effectiveness, or not. I dont know if it takes into account the habits of the women on a particular pill?
I also dont know what it is for ovcon-35. {Removed}

Last edited by Modinatrix21; 06-16-2005 at 07:42 AM. Reason: Read posting rules. No how tos for searches.

Old 06-16-2005, 05:20 AM   #3
Join Date: Jun 2005
Posts: 311
star_shine_2010 HB User
Re: Pearl/Perl Index?

Thank you very much.

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