Children's screen time and psychosocial symptoms at 5 years of age - the role of parental factors.

Background And Objectives: Electronic media (e-media) has become a universal part of young children's daily lives. Previous studies have found an association between increased screen time and children's psychosocial symptoms. We investigated whether parents' psychological distress and parenting style dimensions explain the association between children's screen time and psychosocial symptoms.

Sleep disturbances in late pregnancy: associations with induction of labor.

Purpose: Sleep disturbances, which are common during pregnancy, may compromise labor. Nevertheless, little is known about associations between sleep disturbances and the likelihood of ending up induction of labor (IOL). Accordingly, we aimed to evaluate the connections between sleep disturbances during pregnancy and IOL.

Negative associations between maternal prenatal hair cortisol and child socioemotional problems.

Maternal prenatal distress can participate in the programming of offspring development, in which exposure to altered maternal long-term cortisol levels as measured by hair cortisol concentrations (HCC) may contribute. Yet, studies investigating whether and how maternal prenatal HCC associates with problems in child socioemotional development are scarce. Furthermore, questions remain regarding the timing and potential sex-specificity of fetal exposure to altered cortisol levels and whether there are interactions with maternal prenatal distress, such as depressive symptoms.

Maternal depression and anxiety symptoms across pregnancy and the postnatal period: Modest associations between depression symptoms and infant sleep outcomes.

Maternal depression and anxiety symptoms are common across the perinatal period and are associated with a raised risk for adverse child outcomes. While substantial evidence exists for child outcomes such as behaviour, language and cognition, infant sleep has been less studied. In this longitudinal study, we examined the association between maternal symptoms of depression and anxiety and mother-reported infant sleep at 6 and 12 months.

Course of child social-emotional and sleep symptoms, parental distress and pandemic-related stressors during COVID-19.

Research on the longitudinal courses of child social-emotional symptoms and sleep during the COVID-19 pandemic within societies would be of key value for promoting child well-being in global crises. We characterized the course of children's social-emotional and sleep symptoms before and throughout the pandemic in a Finnish longitudinal cohort of 1825 5- to 9-year-old children (46% girls) with four follow-up points during the pandemic from up to 695 participants (spring 2020-summer 2021). Second, we examined the role of parental distress and COVID-related stressful events in child symptoms.

Polygenic risk for neuroticism is associated with externalizing symptoms in 2-year-old boys.

Recent advances in genome-wide association studies have enabled the estimation of genetic risk of complex traits, including neuroticism, with polygenic risk scores (PRS). Neuroticism PRS has been associated with psychiatric disorders and symptoms in adults, but studies in children are scarce. We studied whether neuroticism PRS, and its subscales, worry PRS and depressive affect PRS, were associated with externalizing and internalizing symptoms in 2-year-olds.

Sleep and psychiatric symptoms in young child psychiatric outpatients - a Follow-up study.

Background: Knowledge of the continuity of sleep problems and the associations between sleep and psychiatric symptoms in child psychiatric patients is scarce.

Objectives: To investigate the persistency of sleep problems and how sleep at preschool age predicts sleep problems and psychiatric symptoms at school age in child psychiatric patients.

Methods: Participants ( = 68) were child psychiatry outpatients at Helsinki University Hospital in 2015-2017.

Paternal perinatal stress is associated with children's emotional problems at 2 years.

Background: Paternal mental health in pregnancy and postpartum has been increasingly highlighted as important both in its own right, but also as crucial for the development of children. Rates of help-seeking among fathers is low, possibly due to conceptualising their own difficulties as stress rather than problems with mood. The relationship between paternal stress and child outcomes has not been investigated.

Season is related to the slow wave and sigma activity of infants and toddlers.

Objective/background: Slow wave activity (SWA) and sigma frequency activity (SFA) are hallmarks of NREM sleep EEG and important indicators of neural plasticity, development of the central nervous system, and cognition. However, little is known about the factors that modulate these sleep EEG activities, especially in small children.

Patients/methods: We analyzed the power spectral densities of SWA (1-4 Hz) and SFA range (10-15 Hz) from six EEG derivations of 56 infants (8 months) and 60 toddlers (24 months) during their all-night sleep and during the first and the last half of night sleep.

Sleep disturbances and depressive and anxiety symptoms during pregnancy: associations with delivery and newborn health.

Background: Sleep disturbances and mood symptoms are common in late pregnancy; according to the literature, they can affect delivery and newborn outcomes. This study evaluated the effect of sleep and mood symptoms on delivery and newborn health, because there are insufficient and partly contradictory studies on the topic.

Methods: A cohort of 1414 mothers in their third trimester was enrolled in this prospective cross-sectional questionnaire study.

Prenatal expectations and other psycho-social factors as risk factors of postnatal bonding disturbance.

The mother's bond to her baby starts to develop during pregnancy, and it is related to the baby's attachment. We study how the mother's prenatal expectations of her unborn baby, the mother's adult relationships, and postnatal psycho-social factors (stress, depression, and anxiety) are related to the risk of bonding disturbance. The study comprised 1398 mothers and their unborn babies assessed both during pregnancy and when the babies were 3 months old (47.

Signaled night awakening and its association with social information processing and socio-emotional development across the first two years.

Study Objectives: Night awakening is common in infancy, and some infants continue to have signaled night awakenings throughout early childhood. However, the influence of signaled night awakening on children's social development is less explored. In the present study, longitudinal associations between signaled night awakening, social information processing, and socio-emotional development were measured within the CHILD-SLEEP birth cohort in two groups formed based on parent-reported night awakenings.

Exposure to electronic media was negatively associated with speech and language development at 18 and 24 months.

Aim: This study evaluated early speech and language development at 18 and 24 months, and associated factors, based on parental reports.

Method: We followed up the CHILD-SLEEP birth cohort of 1667 Finnish-speaking families, who were randomly recruited in 2011-2013 during routine visits to maternity clinics in the Pirkanmaa Hospital District of Finland. The women were approximately 32 weeks' pregnant at enrolment.

Sleep and lifestyle in young adult monozygotic twin pairs discordant for body mass index.

Objectives: The causal nature of the sleep-obesity association is unclear. To control for potential confounding by genes and shared environment, we studied monozygotic twin pairs discordant for body mass index (BMI). First, we investigated sleep in relation to BMI.

Prevalence and evolution of snoring and the associated factors in two-year-old children.

Objectives: To evaluate the prevalence and persistence of snoring during the first two years of life in two Finnish birth cohorts and to assess the associated factors.

Study Design: The study population comprised 947 children from the CHILD-SLEEP (CS) and 1393 children from the FinnBrain (FB) birth cohorts. Questionnaires were provided to both parents when the child was 24 months of age.

Estimating the cumulative risk of postnatal depressive symptoms: the role of insomnia symptoms across pregnancy.

Purpose: Insomnia symptoms during late pregnancy are a known risk for postnatal depressive symptoms (PDS). However, the cumulative effect of various risk factors throughout pregnancy has not been explored. Our aim was to test how various insomnia symptoms (sleep latency, duration, quality, frequent night awakenings, early morning awakenings) and other risk factors (e.

High-dose electronic media use in five-year-olds and its association with their psychosocial symptoms: a cohort study.

Objectives: This study investigated the frequency of electronic media (e-media) usage by preschool children and the risks of high-dose e-media use on young children's psychosocial well-being.

Design: Longitudinal associations between e-media use at 18 months and psychosocial symptoms at 5 years of age were studied, as well as cross-sectional associations between e-media use and psychosocial symptoms at 5 years.

Setting: Between 2011 and 2017 in Finland.

Postpartum depression and mother-offspring conflict over maternal investment.

Background And Objectives: As the mother-offspring relationship is central to human reproduction, postpartum depression symptoms are difficult to explain in evolutionary terms. We proposed that postpartum depression might arise as a result of evolutionary mother-offspring conflict over maternal investment, and investigated the association between postpartum depression symptoms, infant night waking, maternal sleep disturbance and breastfeeding frequency.

Methodology: We conducted a cross-sectional analysis using survey responses at 6 months postpartum from 1598 Finnish mothers.

The Effects of Genetic Background for Diurnal Preference on Sleep Development in Early Childhood.

Purpose: No previous research has examined the impact of the genetic background of diurnal preference on children´s sleep. Here, we examined the effects of genetic risk score for the liability of diurnal preference on sleep development in early childhood in two population-based cohorts from Finland.

Participants And Methods: The primary sample (CHILD-SLEEP, CS) comprised 1420 infants (695 girls), and the replication sample (FinnBrain, FB; 962 girls) 2063 infants.

The longitudinal associations between temperament and sleep during the first year of life.

Temperament and sleep in infants are related but also distinct concepts. The longitudinal effects of temperament on sleep in infancy remain unclear, although this information is potentially important for the prevention and treatment of early sleep problems. We examined how various temperament features influence sleep development during the first year of life in a large birth cohort.

Prenatal and Postnatal Predictive Factors for Children's Inattentive and Hyperactive Symptoms at 5 Years of Age: The Role of Early Family-related Factors.

We examined several parent-reported prenatal and postnatal factors as potential risk factors for attention-deficit and hyperactivity disorder (ADHD) symptomatology in 5-year-old children. Our study is based on the CHILD-SLEEP birth cohort. Several parental questionnaires were collected prenatally (32nd pregnancy week) and postnatally (i.

Maternal stress or sleep during pregnancy are not reflected on telomere length of newborns.

Telomeres play an important role in maintaining chromosomal integrity. With each cell division, telomeres are shortened and leukocyte telomere length (LTL) has therefore been considered a marker for biological age. LTL is associated with various lifetime stressors and health-related outcomes.

Insomnia symptoms increase during pregnancy, but no increase in sleepiness - Associations with symptoms of depression and anxiety.

Objective: To evaluate alteration in insomnia and sleepiness symptoms during pregnancy and assess early pregnancy risk factors for these symptoms, especially depressive and anxiety symptoms.

Methods: A cohort of 1858 women was enrolled from the FinnBrain Birth Cohort Study. Insomnia and sleepiness symptoms were measured in early, mid- and late pregnancy with the Basic Nordic Sleep Questionnaire.