Abstract:
:This review provides an update of previous estimates of first-year probabilities of contraceptive failure for all methods of contraception available in the United States. Estimates are provided of probabilities of failure during typical use (which includes both incorrect and inconsistent use) and during perfect use (correct and consistent use). The difference between these two probabilities reveals the consequences of imperfect use; it depends both on how unforgiving of imperfect use a method is and on how hard it is to use that method perfectly. These revisions reflect new research on contraceptive failure both during perfect use and during typical use.
journal_name
Contraceptionjournal_title
Contraceptionauthors
Trussell Jdoi
10.1016/j.contraception.2011.01.021subject
Has Abstractpub_date
2011-05-01 00:00:00pages
397-404issue
5eissn
0010-7824issn
1879-0518pii
S0010-7824(11)00049-7journal_volume
83pub_type
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