OBJECTIVES The aim of the study was to retrospectively evaluate the effectiveness of a fertility awareness-based method supported by a mobile-based application to prevent unwanted pregnancies as a method of natural birth control. METHODS In a retrospective analysis, the application's efficiency as a contraceptive method was examined on data from 4054 women who used the application as contrace...

AIM To assess the association among social status, prevalence of consanguineous marriages, and the effects of consanguinity on reproductive behavior and mortality in Tunisia. METHODS The study included data on a total of 1741 live-births born from November 1989 to October 1990 in the maternity ward of the University-Hospital Fattouma Bourguiba of Monastir, Tunisia. After delivery, women fille...

Human fathers are heavily involved in the rearing of children around the world. Early evolutionary explanations focused on the greater need of human children and mothers compared to other species and the consequent increased benefits available to investing fathers and pairbonded husbands. Contrary to this hypothesis, research suggests that the impact of men's care on the survivorship and physic...

Abnormal human spermatogenesis is caused by a variety of genetic and acquired conditions. Because spermatogenesis is dependent on androgens, some males may have a minimal form of androgen insensitivity that does not inhibit virilization but impairs fertility. This has lead us to investigate the possibility of abnormalities in the androgen receptor (AR) gene in a large cohort of males suffering ...

BACKGROUND The purpose of the study was to evaluate the role of uterine blood flow parameters measured by uterine artery two-dimensional (2D)-power color doppler (PCD) ultrasound in predicting fertility outcomes in women undergoing IVF-ET cycles. METHODS In this prospective observational study, a total of 188 infertile women who underwent IVF-ET cycles were investigated. Uterine artery 2D-PD ...

OBJECTIVES To compare fertility rates after the three methods of managing early miscarriage in women recruited to the MIST (miscarriage treatment) randomised controlled trial. SETTING Early pregnancy clinics of acute hospitals in the south west region of England. PARTICIPANTS 1199 women who had had an early miscarriage (<13 weeks) confirmed by scan. INTERVENTION Expectant, medical, or sur...

BACKGROUND Mexican-American fertility is poorly understood because data limitations prevent researchers from accurately estimating the fertility levels of members of this group and from determining how their fertility changes within and across generations. OBJECTIVE Using binational data and an innovative methodological addressing key methodological limitations, I (1) estimate the fertility of ...

A total 2400 hatching eggs were obtained from Japanese quails breeders ranged from 100 to 150 days of age used to analyze the effect of shell color on fertility, hatchability, embryonic mortality and malposition as well as internal and external egg quality. Results revealed that shell color had significant effect on fertility and scientific hatchability while it doesn't affect commercial hatcha...