| Literature DB >> 1755460 |
J B Brown1, J Holmes, G Barker.
Abstract
The application of the Home Ovarian Hormone Monitor to the avoidance of pregnancy by periodic abstinence has been explored. No woman had difficulty with the daily urine testing, and their results consistently identified the distinctive hormone pattern of the ovulatory cycle and the day of ovulation and correlated closely with the mucus symptoms. The tests gave 4 days or more warning of ovulation in 99% of cycles and allowed intercourse to be resumed 1 to 3 days after ovulation in 88%, giving a mean period of abstinence of 7 days. No pregnancy occurred from intercourse during the late safe days defined by the Monitor, but some early-day pregnancies occurred through long sperm survivals of 6 to 8 days, mostly during the return of fertility after breastfeeding. Rules for the avoidance of pregnancy, with the minimum of testing on the basis of these results, are given.Entities:
Keywords: Age Factors; Australia; Contraception; Contraceptive Effectiveness; Contraceptive Usage; Demographic Factors; Developed Countries; Evaluation; Evaluation Methodology; Examinations And Diagnoses; Family Planning; Family Planning, Behavioral Methods; Laboratory Examinations And Diagnoses; Laboratory Procedures; Method Acceptability; Natural Family Planning; Obstacles; Oceania; Organization And Administration; Ovulation Detection; Pearl's Formula; Population; Population Characteristics; Population Dynamics; Research Report; Sexual Abstinence; Sympto-thermal Method; Time Factors; Use-effectiveness
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Year: 1991 PMID： 1755460 DOI： 10.1016/s0002-9378(11)90568-7
Source DB: PubMed Journal: Am J Obstet Gynecol ISSN： 0002-9378 Impact factor: 8.661