Abstract Over the previous decades, twinning rates worldwide have increased remarkably. This study aimed to describe changes in multiple birth and related demographic characteristics, such as maternal age level of education parents South Korea from 1981 2019. analyzed data obtained Korean Statistical Information Service. From 2019, total rate 5 22.5 pairs per 1000 births. rapid increase was due...

Background Reducing neonatal mortality rates (NMR) in developing countries is a key global health goal, but weak registration systems the region stifle public efforts.Objective To calculate NMRs, investigate modifiable risk factors, and explore deaths by place of birth death, cause death two administrative areas Ghana.Methods Data on livebirths were extracted from demographic surveillance Navro...

Dizygotic compared with monozygotic conceptions are at decreased risk of fetal and infant death and serious morbidity in surviving infants. Different sex twin maternities must be dizygotic but miscoding and incorrect registration of sex and number of fetuses may lead to an incorrect assignment of zygosity. The aim of the study was to validate the coding and registration of number and sex of bir...

BACKGROUND The occurrence of multiple births has been recognized as a risk factor for child maltreatment. However, few population-based studies have examined the relationship between multiple births and child maltreatment. This study aimed to evaluate the degree of risk of child maltreatment among singletons and multiple births in Japan and to identify factors associated with increased risk. ...

When treating infertile couples by assisted reproductive technologies (ART), all aspects of their care in individual clinics should be evaluated frequently. Results should then be compared with other clinics offering similar treatment. Evaluation of possible adverse longterm outcomes can be achieved by pooling results from individual clinics in national, regional and international registers and...

OBJECTIVE To report the distribution and availability of the indicators describing the population of childbearing women in Europe and to assess the impact of the difference in the distribution of two of these indicators (age and multiple births) on some outcome indicators. METHODS The six PERISTAT indicators of population characteristics were computed using data from a survey of data provider...