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Browsing by Subject "early childhood"

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  • Väisänen, Elina (2023)
    Background: Parenting stress, romantic relationship satisfaction and their associations have been studied extensively, mostly with cross-sectional studies and in different clinical groups. However, parents of young children in non-clinical groups are less studied, especially with longitudinal settings. The aim of this master’s thesis is to investigate the change in maternal parenting stress over time, associations with romantic relationship satisfaction and if romantic relationship satisfaction modifies the change in parenting stress. Methods: Our sample (n = 361) is drawn from the prospective cohort study “The InTraUterine sampling in early pregnancy” (ITU). Participating mothers took part in two follow-up assessments: first at the child’s age of 1–2-years and second at 3 years. Parenting stress was assessed at the first and second follow-ups with the “Parenting Stress Index-Short Form” (PSI-SF) questionnaire with three subscales: parental distress, parent-child dysfunctional interaction and difficult child. Romantic relationship satisfaction was assessed at the first follow-up with the satisfaction subscale form the “Dyadic Adjustment Scale” (DAS) questionnaire. Data were analyzed using linear regression models and mixed models. Child’s age, sex, daycare, and siblings, as well as mother’s education and mental health disorders were controlled for in the analyses. Results: Higher parenting stress at the first follow-up was associated with higher parenting stress at the second follow-up. Higher romantic relationship satisfaction was associated with lower parenting stress at the first follow-up in all the subscales, and at the second follow-up in parental distress and difficult child subscales. Parenting stress related to difficult child’s subscale appeared to increase over time in the entire sample, but in the closer examination the changes in parenting stress were partly different in the groups of high and low romantic relationship satisfaction. Controlling for background variables did not affect the results. Conclusions: The results of this thesis fill the previous gaps in longitudinal settings and studies carried out with mothers of young children in non-clinical groups. It seems that romantic relationship satisfaction may be connected to parenting stress and its change in the early childhood. A broader understanding of these phenomena in the family context may be beneficial for applications, for example in health care, in preventing problems and promoting wellbeing of families with children.
  • Pesonen, Noora (2020)
    Objectives. Recent results of both animal and human studies suggest that intestinal microbiota, i.e. microorganisms inhabiting the gastrointestinal system, may be connected to their host’s cognition. However, the diverse effects of intestinal microbiota are still poorly understood and especially knowledge of its associations with normative childhood cognitive development is very scarce. The purpose of the current study was to examine the possible associations between infant intestinal microbial composition, richness and diversity and cognitive performance in early childhood. Methods. The current study sample consisted of the children taking part in Finnish Health and Early Life Microbiota (HELMi) longitudinal birth cohort study. The cognitive abilities of 424 children were assessed at 2 years of age with Bayley Scales of Infant and Toddler Development, using cognitive, receptive language and expressive language subscales. Of 424 tested children, those from whom microbiota analysis for at least one fecal sample was available at the time of the start of this study, were included. Fecal samples were collected when infants were 3, 6 and 12 weeks old and 6, 9 and 12 months old, and the bacterial composition, richness and diversity were analyzed with 16S rRNA- amplicon sequencing method. Results and conclusions. Intestinal microbial composition in infancy was found to be related to cognitive abilities of the children, more specifically, receptive language skills and expressive language skills. A higher abundance of the genus Finegoldia at 12 weeks of age and the genus Serratia at 6 months of age were related to worse receptive language performance at 2 years of age. A higher abundance of the family Enterococcaceae at 12 weeks of age and the genus Alistipes at 6 months of age, were associated with worse expressive language skills. In addition, the children who scored in lowest 20th percentile in the receptive language tasks, had richer intestinal microbiota at 3 weeks and 6 months of age. Conclusions cannot yet be drawn based on these preliminary findings, but the results suggest that infant intestinal microbiota may be one of the factors influencing cognitive, especially verbal, development in early childhood.