Linked Life Data

14720626

Source:http://linkedlifedata.com/resource/pubmed/id/14720626

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-1-14
pubmed:abstractText
The standard method for estimating the effectiveness of emergency contraceptive pills (ECPs) uses external data to calculate the proportion of expected pregnancies averted by the treatment. Because these data may not be applicable to ECP study populations, this approach could result in substantial overestimation of effectiveness. We used data from two published randomized trials of the levonorgestrel and Yuzpe ECP regimens to calculate the minimum effectiveness of the levonorgestrel regimen. Conservatively assuming that the Yuzpe regimen was entirely ineffective in these trials, we estimate that the levonorgestrel regimen prevented at least 49% of expected pregnancies (95% confidence interval: 17%, 69%). Because physiologic data suggests that the Yuzpe regimen does, in fact, have some efficacy, the effectiveness of the levonorgestrel regimen is likely to be higher than our minimum estimate.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
0010-7824
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-81
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Minimum effectiveness of the levonorgestrel regimen of emergency contraception.
pubmed:affiliation
Family Health International, PO Box 13950, Research Triangle Park, NC 27709, USA. eraymond@fhi.org
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S., Research Support, Non-U.S. Gov't