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At least 19 recordsLinked to original sources
PubMed1979

A randomized prospective study of the use-effectiveness of two methods of natural family planning: an interim report.

Data accumulated to date from the Los Angeles study indicate that the total termination rate for 12 months from the beginning of the training period and from formal entry into the study was high for the ovulation method (OM), and symptothermal method (STM). Voluntary withdrawal was the highest single reason for termination in both methods. The 12 month voluntary withdrawal rate, measured from formal entry into the study, was significantly higher for OM users. Pregnancy rates measured from both the beginning of training and formal entry into the study were significantly higher for OM users than for STM users. Complete analysis of the data collected during the study is currently in progress. It is anticipated that some of the causes for the differences in pregnancy rates and withdrawal rates between the two methods can be identified.

Adult↗
PubMed1992

[Use-effectiveness of natural family planning by ovulation method].

Cervical mucus (CM) peak and plasma LH surge were examined in 19 women. The consistency of the CM peak and ovulation after the plasma LH surge demonstrated that as an indicator of natural family planning (NFP), the CM can scientifically predict the occurrence of ovulation. Based on these results, 300 healthy women were recruited into this study by self examination of CM. A total of 3,393 cycles was observed. There were 29 pregnancies reported, and the continuation rate was 90.3/100 women year. It showed that the NFP is an acceptable, safe and effective birth control method for Chinese women.

Adult↗
PubMed1992

Cumulative pregnancy rates in patients with apparently normal fertility and fertility-focused intercourse.

Fifty consecutive clients achieved pregnancy using a standardization modification of the Billings ovulation method (the Creighton Model Natural Family Planning System). Of 50 clients followed, 38 (76%) achieved pregnancy in the first cycle of fertility-focused intercourse, 45 of 50 (90%) achieved pregnancy by the third cycle and 49 of 50 achieved pregnancy by the sixth cycle (98%).

Adult↗
PubMed1979

Use-effectiveness and client satisfaction in six centers teaching the Billings Ovulation Method.

Use-effectiveness of the Billings Ovulation Method (OM) is reported for 1139 clients from six centers who were followed for at least 24 months. Method failure rates were 1% when calculated by either Pearl formula or life table analysis. Combined method and user failure rates were 20% when calculated with the Pearl formula, and 16% at 12 months and 23% at 24 months by life table analysis. Pregnancy rates were higher for couples using OM alone, than for couples using OM in combination with additional fertility awareness methods or together with barrier methods. The difference was significant when estimated by the Pearl formula but not when analyzed by the life table. The emotional implications underlying the apparent contradiction between a desire to avoid pregnancy and the deliberate coital use of fertile days are reflected in the differences between method and user failure rates, the high client satisfaction levels reported with "user failure," and 56% continuation rate at 24 months. The will require in-depth exploration.

Abortion, Legal↗
PubMed1978

Study confirms values of ovulation method.

In order to determine the effectiveness of the ovulation method in spacing or achieving pregnancy as well as couple satisfaction with the method, the Natural Family Planning Program of St. Vincent Hospital, Green Bay, WI, studied 453 couples who had participated in the program. The program's director reports that the study results suggest the method provides a safe, effective approach to birth control and assists some women to become pregnant who have not succeeded prior to using this method.

Adult↗