Growing up with multiple siblings might negatively affect language development. This study examined the associations between birth order, sibling characteristics and parent-reported vocabulary size in 6163 Norwegian 8- to 36-month-old children (51.4% female). Results confirmed that birth order was negatively associated with vocabulary, yet…

A succession of interconnected environmental factors is believed to contribute substantially to the development of autism spectrum disorder (ASD). This exploratory study therefore aims to identify potential risk factors for ASD that are associated with pregnancy, birth and infant feeding. Demographic and health-related data on children aged…

The aim of this study was to determine the effect of sleep quality of postpartum women on perception of insufficient milk and attitude to breastfeeding. The research was designed as a cross-sectional study. It was carried out with 347 mothers in a university hospital between December 2021 and July 2022. Data was collected via a personal…

This study informs the potential for prenatal early intervention (EI) by understanding the medical community's perspective of researcher-developed family outcomes for prenatal EI relative to outcome importance, whether they are actively meeting those outcomes, and ways to collaborate with EI if provided prenatally. Forty-two medical providers,…

This study has been conducted to examine the relationship levels of fathers who have 6- to 12-month-old babies with their fathers, and their attachment status with their babies. The sample group consisted of 313 fathers. Fatherhood Scale and Father-Infant Attachment Scale have been applied to the fathers who participated in our study,…

This study was carried out to determine the effects of posttraumatic stress disorder (PTSD) on maternal adaptation and newborn perception in postpartum primiparous mothers. The research was designed as descriptive and cross-sectional. A total of 378 mothers who were in postpartum 6-8 weeks were reached. Of the 378 mothers participating in the…

We compared speech acts and complexity of maternal speech to firstborn dizygotic twin and singleton infants. Nine twins and nine singletons were video-recorded at home in spontaneous face-to-face interactions with their mothers, from the 2nd to the 6th month. Continuous micro-analysis revealed that (a) open-ended questions, direct requests,…

This study aimed to identify whether appetitive traits predict exclusive breastfeeding (EBF) duration for the first 6 months of life and to assess other predictors of its duration. 186 six- month-old term infants were included. Appetitive traits were assessed at 3-4 months of age. EBF duration, feeding practices, sex, maternal age and education,…

The proportion of infants in the United States who are breastfed at 1 year remains well below the Healthy People 2030 target. The health implications of suboptimal breastfeeding durations are significant, including increased risk of childhood leukemia and maternal Type 2 diabetes. Prenatal breastfeeding education provides an opportunity to improve…

The purpose of the current study was to use the infant sibling design to explore whether proband traits of autism and ADHD could provide information about their infant sibling's temperament. This could help us to gain information about the extent to which infant temperament traits are differentially associated with autism and ADHD traits. We used…

We compared dyad-focused maternal speech (protoconversations and maternal speech describing the dyad) in interactions of mothers with their twin and singleton infants. Nine twins and nine singletons, coming from urban areas of Crete (Greece), were video-recorded at home in spontaneous face-to-face interactions with their mothers, from the 2nd to…

In fall 2021, I interviewed 6 teachers about their experiences with lactation (pumping) in schools following the birth of a child. Participants recounted heartbreaking stories as the neopatriarchal norms of their institutions clashed against the unpredictable nature of the embodied labor of infant feeding. This pain, however, is an incomplete…

Purpose: Research on early language development has primarily used two categories to group at-risk children, differing by the age at which risk is identified. Late talkers are toddlers with late onset of language development, some of whom may catch up with peers. Developmental language disorder is used to refer to children above the age of 4…

Background: Fetal life and infancy might be critical periods for brain development leading to increased risks of neurocognitive disorders and psychopathology later in life. We examined the associations of fetal and infant weight growth patterns and birth characteristics with behavior and cognitive outcomes at the age of 13 years. Methods:…

This study tested the hypothesis that exposure of children prior to their third birthday to procedures requiring general anesthesia is associated with an increased incidence of autism spectrum disorder (ASD) in later life. This study employed a nested, 1:2 matched-case control study design using ASD cases identified in a population-based birth…