Contraceptive Effectiveness, Newest Statistics

At the end of one year of trying for pregnancy about 85 out of 100 couples will be pregnant. If they contracept using spermacides, with typical use, about 29 of 100 women will be pregnancy, actually worse than the 27 that will get pregnant with spermacide use. A new study published in the June 2012 issue of the American Journal of Obstetrics and Gynecology from researchers rom Merck Implanon Clinical Training Program and the Bayer Research Award grant showed that many women overestimate the effectiveness of their contracption. Perfect use, like in the contraceptive studies and in the contraceptive package inserts are not necessarily the same statistics that we seen in women who have 'typical use'...meaning us humans are a bit more falible when it comes to our contraception! Fertility awareness methods (either the standard days method the two day method or the ovulation tracking method also improves contraceptive effectiveness over spermacides alone and only 1/4 of couples who practice this will become pregnant. The contraceptive sponge is very effective for women who have never had children, equaling diaphragm users and with typical use of these methods only 16 women out of 100 will be pregnant. But if you separate out women who have had children and use the sponge as their contraception then 32 women out of 100 will be pregnant after the first year of use. Female condoms consistently out-performed by male condoms with only 21 women getting pregnant at the end of a year of using this method and only 15 women out of a 100 getting pregnant if her partner uses as male condom. Patches, rings, and the birth control pills are 92% effective with typical use in the first year (remember this compares to only 0.3% failure rate in studies). The injectable progesterone contraceptive DepoProvera has a failure rate of only 3 women per year. For other methods we have to describe percentages as failure rates are less than one woman per 100 per year even with typical use. The copper IUD 0.8% pregnancy rate, Mirena rate 0.2% and the Implanon rod 0.05! Sterilization successes are listed for females at 0.5% and vasectomy 0.15% failure rates! So actually the Impanon rod beats out methods, including, vasectomy for effectiveness in the first year of use, and even with perfect use studies Implanon beat out all methods! Have you gabbed with your gyno about this lately!


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