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Neurophysiological and behavioral development is particularly complex in adolescence. Youngsters experience strong emotions and impulsivity, reduced self-control, and preference for actions which offer immediate rewards, among other behavioral patterns. Given the growing interest in endocrine effects on adolescent central nervous system development and(More)
The concept of the ovarian cycle as a continuum considers that all types of ovarian activity encountered during the reproductive life are responses to different environmental conditions in order to ensure the health of the woman. During the normal ovulatory cycle, a series of sequential events have to occur in a highly synchronized manner. Fertility(More)
Data from two prospective studies of the ovulation method were used to assess pregnancy rates and users' fertility-related behaviors among breastfeeding women. The rate of unplanned pregnancy was less than 1% during the first 6 months of lactational amenorrhea. However, the unplanned pregnancy rate was elevated among breastfeeders during the months after(More)
Studies of method effectiveness must be carefully assessed for comparability of findings. Several parameters are identified that are important in the assurance of comparable results. This article discusses these issues with the use of data from previously published studies and emphasizes the management implications of use-effectiveness data.
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(More)
Sociodemographic and reproductive health data were gathered on approximately 200 acceptors in each of three programs offering the Ovulation Method of Natural Family Planning. The programs were located in Bangladesh, Kenya, and Korea. In addition, a one year follow-up was attempted to assess continuation and efficacy. Descriptive data show a variety of(More)