| Literature DB >> 3132758 |
I Sivin1.
Abstract
Experience encompassing more than 20,000 woman-years of use of NORPLANT capsules and 6,000 woman-years of trials of NORPLANT-2 rods is reviewed. Implant contraception repeatedly has been associated with low pregnancy rates and high continuation rates through five full years of use. Weight has proved to be a factor related to effectiveness. Women weighing less than 50 kg experienced cumulative five-year pregnancy rates well below 1 per 100, whereas the overall cumulative rate has been 3.5 per 100. Medical events reported during use that have led to discontinuation are analyzed from four large data sets.Entities:
Keywords: Biology; Body Weight; Contraception; Contraception Continuation--statistics; Contraception Termination; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Effectiveness; Contraceptive Implants--contraindications; Contraceptive Implants--side effects; Contraceptive Methods--contraindications; Contraceptive Methods--side effects; Contraceptive Usage; Data Analysis; Demographic Factors; Developed Countries; Developing Countries; Diseases; Evaluation; Family Planning; Fecundity; Fertility; Fertility Measurements; Menstruation Disorders; Pearl's Formula; Physiology; Population; Population Dynamics; Pregnancy Rate; Reproduction; Research Methodology; Research Report; Signs And Symptoms; Use-effectiveness; World
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Year: 1988 PMID： 3132758
Source DB: PubMed Journal: Stud Fam Plann ISSN： 0039-3665