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Maternal lifestyle factors in pregnancy risk of attention deficit hyperactivity disorder and associated behaviors: review of the current evidence.
TLDR
Exposure to tobacco smoke in utero is suspected to be associated with ADHD and ADHD symptoms in children and other maternal lifestyle factors during pregnancy may also beassociated with these disorders.
Infertility, infertility treatment, and congenital malformations: Danish national birth cohort
TLDR
The results suggest that the reported increased prevalence of congenital malformations seen in singletons born after assisted reproductive technology is partly due to the underlying infertility or its determinants.
The Strengths and Difficulties Questionnaire in the Nordic countries
TLDR
The descriptive statistics suggest that the distributions of SDQ scores are very similar across the Nordic countries, and further collaborative efforts in establishing norms and evaluating the validity of the SDQ as a screening instrument are encouraged.
Stress and salivary cortisol during pregnancy
TLDR
Differences in the associations between chronic stress in early and late pregnancy and cortisol levels indicating that the response to chronic stress is dependent on the stage of the pregnancy are found.
Maternal adiposity prior to pregnancy is associated with ADHD symptoms in offspring: evidence from three prospective pregnancy cohorts
TLDR
It is shown for the first time that pre-pregnancy BMI is associated with ADHD symptoms in children and will add ADHD Symptoms in offspring to the list of deleterious outcomes related to overweight and obesity in the prenatal period.
Psychometric Properties of the Danish Strength and Difficulties Questionnaire: The SDQ Assessed for More than 70,000 Raters in Four Different Cohorts
TLDR
The study supports the usefulness of the SDQ as a screening tool for boys and girls across age groups and raters in the general Danish population.
Parental age and autism spectrum disorders.
TLDR
An association between parental age and ASD is found in the cohort study, but the combined underlying mechanisms through which paternal and maternal age impact ASD risk do not seem to act synergistically.
Prenatal and Postnatal Exposure to Cell Phone Use and Behavioral Problems in Children
TLDR
Exposure to cell phones prenatally and postnatally was associated with behavioral difficulties such as emotional and hyperactivity problems around the age of school entry, which may be noncausal and may be due to unmeasured confounding.
Is maternal smoking during pregnancy a risk factor for hyperkinetic disorder?--Findings from a sibling design.
TLDR
The findings suggest that the strong association found in previous studies may be due to time-stable familial factors, such as environmental and genetic factors, and if smoking is a causal factor, the effect is small and less important than what the previous studies indicate.
Prevalence and clinical correlates of tic disorders in a community sample of school-age children
TLDR
Children with hyperactivity and CTD and hyperactivity show greater symptom severity across several domains of behavior and overall impairment, and children with CTD are at increased risk for emotional difficulties, but not disruptive behavior problems.
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