12.18.08
Effectiveness of Alternate Forms of Birth Control
Research has been done to assess the lowest expected and typical percentage of accidental pregnancy (in the US) during the first year of using a variety of birth control methods.
The typical percentages of accidental pregnancy during the first year of use is as follows for commons methods:
Chance (85%)
Spermicides (21%)
Periodic Abstinence (20%)
Withdrawal (18%)
Cap (18%)
Sponge (18-28%)
Diaphragm (18%)
Condom (12%)
UDI (3%)
Pill (3%)
Injectable Progestogen (0.3-0.4)
Implants (0.04-0.03)
Female Sterilization (0.4)
Male Sterilization/Vasectomy (0.15)
These numbers are best guesses by researchers in the field and include a number of caveats, but serve to illustrate the relative risk of pregnancy with alternative forms of birth control.
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California Vasectomy Reversal said,
January 27, 2009 at 1:23 am
I think none of the birth control methods can be relied on fully.
-Martin