Validity of child psychiatric screening methods

Prenatal maternal stress, breastfeeding and offspring ADHD symptoms

There is increasing evidence to suggest that environmental factors are associated with ADHD, but results regarding prenatal maternal stress, unwanted pregnancy, breastfeeding, and ADHD in children are controversial and few prospective studies have been conducted. Using prospectively collected data from the Northern Finland Birth Cohort 1986 (n = 7,910) we studied potential risk factors for ADHD symptoms at 8 and 16 years of age, including prenatal maternal stress and unwanted pregnancy, and protective factors including the duration of breastfeeding. Prenatal stress was associated with an increased risk of ADHD symptoms at the age of 16 (OR = 1.95, 95% CI: 1.34-2.80) and an unwanted pregnancy correlated with hyperactivity symptoms in the offspring at the age of 8 (OR = 2.08, 95% CI: 1.55-2.77). We did not find an association between prenatal maternal stress and hyperactivity symptoms in the offspring at the age of 8 (OR = 0.87, 95% CI: 0.69-1.08) or with unwanted pregnancy and ADHD symptoms at the age of 16 (OR = 1.13, 95% CI: 0.57-2.02). In relation to breastfeeding, over three months of exclusive breastfeeding was associated with lower hyperactivity symptoms in the 8-year follow-up (OR = 0.65, 95% CI: 0.46-0.92) and there was evidence of same kind of relationship concerning non-exclusive breastfeeding, but the association was not statistically significant (OR = 0.76, 95% CI: 0.54-1.06). In 16-year follow-up, under six months of non-exclusive breastfeeding showed an association with ADHD symptoms (OR = 0.68, 95% CI: 0.48-0.95) while exclusive breastfeeding did not (OR = 1.00, 95% CI: 0.66-1.55). In conclusion, our findings suggest that prenatal maternal stress increases the risk of more severe forms of ADHD symptoms in the offspring and breastfeeding can protect against such symptoms at the ages of 8 and 16.

Bullying at 8 years and violent offenses by 31 years: the Finnish nationwide 1981 birth cohort study

This study explored the associations between bullying perpetration and victimization at 8 years of age and violent offenses by the age of 31. Data were obtained for subjects enrolled in a population-based longitudinal birth cohort study. In 1989, 5813 8-year-old children (attrition 3.4%), and their parents and teachers, were surveyed about bullying. When 5405 subjects (attrition 10.2%) were 15-31 years of age, violent offenses were extracted from the Finnish National Police Register. We analyzed the data by sex and categorized bullying perpetration and victimization by frequency. Violent offenses were categorized by severity. Cox regression analyses estimated the hazard ratios (HRs) and 95% confidence intervals (95% CIs). When they were compared to males who had not been bullies at 8 years of age, frequent male bullies had an increased hazard for violent offenses (adjusted HR 3.01, 95% CI 2.11-4.33) and severe violent offenses (adjusted HR 2.86, 95% CI 1.07-7.59) as adults, even when the data were controlled for them being victims, parental education level, family structure and child psychopathology. Frequent female bullies also had an increased hazard for violent offenses, compared to those who had not bullied others (adjusted HR 5.27, 95% CI 1.51-18.40). Frequent male bullying was associated with higher odds for violent offenses compared to only bullying sometimes. Being a victim was not associated with violent offenses. Preventing childhood bullying could reduce violent offenses by both sexes.

Parental suicide attempts and offspring mental health problems in childhood and adolescence

BACKGROUND

The relationship between parental suicide attempts and offspring suicide risk has been established. However, the impact of parental suicide attempts on mental health problems in offspring as youth remains unexplored. This study examined the prospective association between parental suicide attempts and offspring internalizing, externalizing, and attention/hyperactivity problems in childhood and adolescence. We also examined how offspring mental health problems in childhood mediated the association between parental suicide attempts and offspring mental health problems in adolescence.

METHODS

A subsample of 6,381 (48.4% female) cohort members with complete data on mental health problems in childhood and adolescence was extracted from the Northern Finland Birth Cohort 1986 Study. Offspring mental health problems were assessed via teacher's Rutter B2 scale during the childhood assessment (child's age of 8) and the Youth Self-Report scale (child's age of 15/16). Information about first parental suicide attempts was collected using ICD codes from hospital discharge records.

RESULTS

Lifetime parental suicide attempts during the study period (N = 95) were associated with offspring internalizing, externalizing, and attention/hyperactivity problems in adolescence. Parental suicide attempts before the childhood assessment (N = 55) were associated with offspring behavioral problems in childhood [B (95% CI) = .64 (0.08-1.28)]. In the mediation models, parental suicide attempts before the childhood assessment had a significant indirect effect on offspring externalizing [B (95% CI) = .03 (0.01-0.05)] and attention/hyperactivity problems [B (95% CI) = .02 (0.01-0.04)] in adolescence via offspring behavioral problems in childhood.

CONCLUSIONS

Our findings highlight the importance of assessing and monitoring mental health problems in offspring whose parents have been hospitalized for attempting suicide. Among children with behavioral problems, clinicians should inquire about parental history of suicide attempts, as children with familial vulnerability to suicide may develop externalizing and attention/hyperactivity problems in adolescence.

The long-term cost of childhood conduct problems: Finnish Nationwide 1981 Birth Cohort Study

BACKGROUND

Commonly recognized childhood conduct problems often lead to costly problems in adulthood. This study aimed to evaluate the long-term cumulative cost of childhood conduct problems until the age of 30. The costs included inpatient care, nervous system medicine purchases, and criminal offences.

METHODS

The study used population-based nationwide 1981 birth cohort data. Families and teachers assessed the conduct problems of the eight-year-olds based on Rutter questionnaires. We grouped 5,011 children into low-level of conduct problems (52%), intermediate-level of conduct problems (37%), and high-level of conduct problems (11%) groups, based on combined conduct symptoms scores. The analysis included the cohort data with the Care Register for Health Care, the Drug Prescription Register, and the Finnish Police Register. The cost valuation of service use applied national unit costs in 2016 prices. We used Wilcoxon rank-sum test to test the differences between groups and gender.

RESULTS

During 1989-2011, average cumulative costs of the high-level (€44,348, p < .001) and the intermediate-level (€19,405, p < .001) of conduct problems groups were higher than the low-level of conduct problems group's (€10,547) costs. In all three groups, the boys' costs were higher than girls' costs.

CONCLUSIONS

The costs associated with conduct problems in childhood are substantial, showing a clear need for cost-effective interventions. Implementation decisions of interventions benefit from long-term cost-effectiveness modelling studies. Costing studies, like this, provide cost and cost offset information for modelling studies.

The association between the social environment of childhood and adolescence and depression in young adulthood - A prospective cohort study

BACKGROUND

Good social relationships with parents and peers protect children and adolescents from developing mental disorders in adulthood while several negative experiences increase the risk of depression in later life.

METHODS

We used population-based cohort data from the Northern Finland Birth Cohort (NFBC) 1986. Participants (n = 6147), their teachers and parents reported factors associated with the social environment of children and adolescents. Diagnoses of depression of cohort members were derived from Finnish nationwide registers. We conducted regression analyses to assess which factors of the social environment of childhood and adolescence were associated with depression in young adulthood.

RESULTS

Bullying victimization in adolescence was the strongest predictor of depression in young adulthood among girls (OR 2.23: 95% CI 1.47-3.39) and boys (OR 2.44: 95% CI 1.49-4.00). Loneliness and bullying behavior in childhood were associated with depression in boys only. Loneliness in adolescence (OR 1.63: 95% CI 1.30-2.04) was associated with depression among both genders. Spending with the family seemed to protect against the negative impact of bullying and loneliness.

LIMITATIONS

We used single-item study questions to measure social relationships. These questions do not necessarily describe the phenomena as accurately as the measures validated for them.

CONCLUSION

Problems in social relationships with peers in childhood and adolescence are associated with depression in young adulthood. Time spent with the family is emphasized in situations in which adolescents have problems in peer-relationships.

Childhood chronic condition and subsequent self-reported internalizing and externalizing problems in adolescence: a birth cohort study

Chronic conditions are common in childhood. We investigated the associations of childhood chronic conditions reported by parents with subsequent self-reported internalizing and externalizing problems in adolescence. A sample of 6290 children (3142 boys and 3148 girls) with data on chronic condition reported by parents both at 7 and at 16 years of age was obtained from the Northern Finland Birth Cohort 1986 (NFBC 1986), which is a longitudinal 1-year birth cohort (n = 9432) from an unselected, regionally defined population. Internalizing and externalizing problems were measured at 8 years of age with Rutter Children's Behavioral Questionnaire by teachers and at 16 years of age with Youth Self-Report by adolescents. When studying the effects of history of chronic conditions on these problems at 16 years of age, childhood internalizing and externalizing problems and social relations were adjusted. A history of chronic condition predicted subsequent somatic complaints among all adolescents. Early-onset chronic conditions were related to subsequent externalizing (OR 1.35; 1.02-1.79) and attention problems (OR 1.33; 1.01-1.75) and later onset of chronic conditions with internalizing (OR 1.49; 1.22-1.82) and thought problems (OR 1.50; 1.18-1.92). The effect was specific for sex and the type of chronic condition.

CONCLUSION

Childhood chronic conditions predicted internalizing and externalizing problems in adolescence. To prevent poor mental health trajectories, children with chronic conditions during their growth to adolescence need early support and long-term monitoring.

WHAT IS KNOWN

• Childhood adversities increase the risk of mental disorders. • Internalizing and externalizing problems have been suggested for measuring childhood and adolescent psychopathologies.

WHAT IS NEW

• Having a chronic condition (CC) before the age of 7 or later but before the age of 16 had different outcomes in adolescence. The early onset predicted externalizing problems, whereas the late onset predicted internalizing problems and thought problems in adolescence. The risk of somatic complaints was increased regardless of CC onset time. These findings can reflect more restricted ability to mental processing in the younger children.

Relative age is associated with bullying victimisation and perpetration among children aged eight to nine

AIM

To assess whether relative age was associated with bullying involvement and whether the associations were independent of child psychiatric symptoms.

METHODS

Bullying was assessed among 8576 children in the second grade, aged 8 years, by using four cross-sectional population-based studies with identical methodology completed by children, parents and teachers in 1989 (response rate 97%), 1999 (93%), 2005 (90%) and 2013 (86%). The main outcomes were bullying victimisation and perpetration. Odds ratios (OR) and 95% confidence intervals (95% CI) were calculated with the relatively oldest as the reference group and adjusted for child psychiatric symptoms.

RESULTS

The relatively youngest children, born September to December, were compared with the relatively oldest, born January to April. The youngest children had increased odds of being victims according to child (OR 1.2, 95% CI 1.1-1.4) and parent reports (OR 1.2 95% CI 1.008-1.4). The youngest also had decreased odds of being perpetrators according to child (OR 0.8, 95% CI 0.7-0.96) and teacher reports (OR 0.8, 95% CI 0.7-0.95). These findings were independent of psychiatric symptoms.

CONCLUSION

The relative age effects which were found in bullying involvement were independent of psychiatric symptoms. Considering this newly recognised risk factor for victimisation is important within anti-bullying practices.

Associations between Childhood and Adolescent Emotional and Behavioral Characteristics and Screen Time of Adolescents

The correlations between emotional and behavioral problems and increased screen time among young people has been highlighted in the literature. This study examined both longitudinal and cross-directional associations between the degree of childhood and adolescent emotional and behavioral problem characteristics and a higher level of daily screen time in adolescence using an extensive population study. Questionnaires providing data on a representative cohort sample (the Northern Finland Birth Cohort 1986 Study, NFBC 1986; n = 6479; 3101 males) were completed at birth, in childhood, and in adolescence. Male gender, and self-reported behavioral issues (such as a higher degree of hyperactivity/distractibility problems at the beginning of formal schooling and adolescent rule-breaking problems), predicted higher daily screen time in adolescence, after controlling for confounding factors. Higher levels of anxious-depression symptoms among adolescents were inversely related to them having elevated daily digital screen time. Individual behavioral tendencies at the start of formal schooling and later in adolescence may predict higher screen time among young people.

Association Between Psychosocial Problems and Unhealthy Health Behavior Patterns Among Finnish Adolescents

The aim of the study was to investigate how psychosocial problems in childhood and adolescence associate with an unhealthy health behavior pattern among adolescents in Northern Finland. The study population consisted of 4350 participants, drawn from the Northern Finland Birth Cohort 1986 Study. Health behavior patterns were assessed in adolescence and psychosocial problems in childhood and adolescence. Logistic regression analyses were performed to determine the associations. Several psychosocial problems predicted greater likelihood of engaging in unhealthy health behavior pattern. Externalizing problems in childhood predicted greater likelihood of engaging in unhealthy behavior patterns for girls. For both genders, externalizing problems and inattention in adolescence were associated with unhealthy health behavior patterns. Boys and girls with externalizing problems both in childhood and adolescence had an increased risk of unhealthy patterns. Psychosocial problems contribute to unhealthy lifestyles and should therefore be acknowledged when designing and targeting health promotion strategies aimed at adolescents.

Prevalence and clinical characteristics of body dysmorphic disorder in adolescent inpatient psychiatric patients-a pilot study

Background: Body dysmorphic disorder (BDD) is preoccupation with perceived body defects leading to distress and impairment in social functioning. Most of adolescent BDD literature has been done on patients within the outpatient setting with prior versions of DSM with dearth of information about BDD and comorbid psychiatric conditions among adolescents within the inpatient setting. Aims: This pilot study evaluated the prevalence rate, clinical characteristics in adolescent BDD compared to non-BDD adolescents in a psychiatric in patient setting in addition to their comorbid issues like anxiety, OCD, ADHD and substance abuse. Methods: Forty-five consecutively admitted adolescent patients participated with 17 meeting the DSM 5 criteria for BDD while 28 did not. Patients were asked four questions designed around the DSM-5 criteria for BDD after which they were asked to complete questionnaires like BDDQ child and adolescent version, BDDM, Multiaxial Anxiety Scale for Children, Children's Depression Inventory, Y-BOCS and Vanderbilt ADHD rating scales. Results: Seventeen participants had BDD. Mean age of BDD patients was 13.1 while non-BDD was 12.4. Male patients with BDD were seven (41%) while female BDD patients were 10 (58.8%). Anxiety, depression, OCD and substance use disorders were common comorbid diagnoses. Majority of patients in the BDD group classified their BDD as a severe problem with more BDD, patient's considering suicide because of their BDD. Discussion: BDD is present in adolescents admitted in inpatient psychiatric hospital with more female patients endorsing BDD versus their male counterparts. Patients with BDD are more likely to endorse more comorbid psychiatric issues such as anxiety, OCD, ADHD and substance abuse.

Changes in mental health service use among 8-year-old children: a 24-year time-trend study

The use of children's mental health services has increased, but most children with psychiatric problems are still not in contact with these services. This time-trend study assessed changes in considered and reported service use over a 24-year period and studied the factors associated with it using four cross-sectional studies. Information was gathered on 8-year-old children living in the area covered by Turku University Hospital, Finland, at four time points: 986 children in 1989, 891 in 1999, 930 in 2005, and 942 in 2013. The same study design, methods and school districts were used each year and the participation rates varied between 86 and 95%. Parents and teachers completed questionnaires concerning the child's psychiatric symptoms and service use. The considered and reported service use increased continuously during the study period. In 1989, 2.4% of children had used services and in 2013 this was 11.0% (OR 5.0, 95% CI 3.1-8.0). Reported service use also increased among children with comorbid problems, from 18.3 to 50.7% (OR 5.0, 95% CI 2.1-12.0). Psychiatric problems and some family factors were associated with service use, but the increase was not explained by these factors. The increase in child mental health service use may reflect better public awareness of mental health problems, fewer barriers to accessing care and decrease of stigma. Although more children are using mental health services, there are still a large number of children with mental health problems who have not been in contact with services.

Efficacy of EMDR Therapy for Children With PTSD: A Review of the Literature

The rationale is synthesized for the urgency of empirical studies demonstrating the efficacy of eye movement desensitization and reprocessing (EMDR) therapy for children and adolescents with posttraumatic stress disorder (PTSD), symptoms of PTSD, or other trauma-related symptoms. This literature review examined 15 studies (including nine randomized clinical trials) that tested the efficacy of EMDR therapy for the treatment of children and adolescents with these symptoms. All studies found that EMDR therapy produced significant reductions in PTSD symptoms at posttreatment and also in other trauma-related symptoms, when measured. A methodological analysis identified limitations in most studies, reducing the value of these findings. Despite these shortcomings, the methodological strength of the identified studies has increased over time. The review also summarized three meta-analyses. The need for additional rigorous research is apparent, and in order to profit from experiences of the past, the article provides some guidelines for clinicians seeking to conduct future research in their agencies.

Loneliness and friendships among eight-year-old children: time-trends over a 24-year period

BACKGROUND

Loneliness in childhood has a wide range of negative consequences for well-being and mental health later in life. This study reports time-trends in children's loneliness and the association between children's loneliness and psychiatric symptoms over a 24-year period.

METHODS

Information on 3,749 eight-year-old Finnish-speaking children born in 1981, 1991, 1997, and 2004 was gathered at four time points from the area covered by Turku University Hospital in southwest Finland. The actual numbers of participants at these time points were 986 (1989), 891 (1999), 930 (2005), and 942 (2013), with participation rates of 86%-95%. The study design and methods were similar at every time point. Information on children's loneliness and friendships was obtained from the children and also parents and teachers evaluated how many friends children had and their psychiatric symptoms.

RESULTS

Approximately 20% of the children reported loneliness at each time point, 5% always felt lonely, and 25% wished they had more friends. Conduct and emotional problems, and hyperactivity were independently associated with loneliness in the multiple-regression analysis. The strength of these associations remained at similar levels over the 24-year study period. Living in a nonnuclear family, parents with a lower level of vocational education, and negative life events among the girls in the study were all associated with loneliness.

CONCLUSIONS

Loneliness was a common phenomenon in childhood, and no notable changes were found during the 24-year study period. Psychiatric symptoms were strongly associated with loneliness. It is important to pay attention to children's loneliness and make it an integral part of school health care. Further epidemiological research is needed.

Maternal Smoking During Pregnancy Is Associated With Offspring's Musculoskeletal Pain in Adolescence: Structural Equation Modeling

Introduction

Smoking and behavioral problems are related to musculoskeletal (MS) pain in adolescence. Maternal smoking during pregnancy (MSDP) is associated with offspring's behavioral problems but its relation to MS pain in adolescence is unknown. Our purpose was to investigate whether there is an association between MSDP, the number of pain sites in adolescence, and the factors that potentially mediate this relationship.

Methods

We evaluated the association of MSDP with offspring's MS pain at 16 years among participants of the Northern Finland Birth Cohort 1986 (n = 6436, 3360 girls, 68% of all births) using Chi-square test and independent samples t test. We used structural equation modeling to assess the mediating factors stratified by gender.

Results

MSDP was frequent (22%) associating with paternal smoking (p < .001), externalization problems at 8 years (p = .009 boys, p = .002 girls), offspring's smoking at 16 years (p < .001), externalizing problems at 16 years (p < .001), family's social class (p < .001) and intactness of the family status (p < .001). The mean number of offspring's MS pain sites was higher among adolescents whose mothers had smoked during pregnancy than among those whose mothers were nonsmokers (p = .002 boys, p = .012 girls). The association between MSDP and MS pain at 16 years was mediated by externalizing problems at 8 years (p < .001) and 16 years (p < 0.001).

Conclusions

MSDP increased the risk of offspring's MS pain in adolescence, and the association was mediated by offspring's externalizing problems during childhood and early adolescence.

Implications

This study indicates that MSDP increases the risk of MS pain in adolescence and the effect is mediated by externalizing problems. Our results add to the evidence on harmfulness of MSDP for offspring, and can be used as additional information in interventions aiming to influence MSDP.

Building Youths' Resilience within a Psychiatric Outpatient Setting: Results from a Pilot Clinical Intervention Project

The relevance of resilience research for clinical practice has not yet been established. In this intervention pilot study, the aim was to explore how group work based on enhancing the participants' creativity, self-efficacy, active coping, and sense of continuity could be utilized within a clinical context for adolescents with stressful background experiences. 31 participants and 24 parents completed pre-, post-, and 1-yr. follow-up assessments of the youths' behavior difficulties, as well as depression, positive life attitude, coping, and prosocial behavior. Apart from a drop in self-rated prosocial behavior, no significant treatment effects were found. Implications for clinical practice and research are indicated.

The Association Between Hospital-Treated Injuries and ADHD Symptoms in Childhood and Adolescence: A Follow-Up Study in the Northern Finland Birth Cohort 1986

OBJECTIVE

We examined the risk of hospital-treated injuries related to the symptoms/diagnosis of ADHD.

METHOD

The study population (N = 6,111) was composed from the Northern Finland Birth Cohort 1986. At the age of 8, symptoms of hyperactivity and at the age of 15, symptoms of ADHD were assessed by the parents while the clinical diagnoses of ADHD were set in adolescence. Information on injuries was obtained from national register.

RESULTS

The risk for hospital-treated injuries during ages 0 to 7 was 1.7-fold increased among those with symptoms of hyperactivity assessed at age 8. Also, injuries during ages 7 to 15 years were more common among those with symptoms of ADHD at age 15 with respect to any injury, fractures, and intracranial injuries, and among those with the diagnosis of ADHD with respect to any injury.

CONCLUSION

The present study shows an association between hospital-treated injuries and symptoms of ADHD in a large epidemiological sample of 0- to 15-year-old children.

Early development, stress and depression across the life course: pathways to depression in a national British birth cohort

BACKGROUND

The aetiology of depression is multifactorial, with biological, cognitive and environmental factors across the life course influencing risk of a depressive episode. There is inconsistent evidence linking early life development and later depression. The aim of this study was to investigate relationships between low birthweight (LBW), infant neurodevelopment, and acute and chronic stress as components in pathways to depression in adulthood.

METHOD

The sample included 4627 members of the National Survey of Health and Development (NSHD; the 1946 British birth cohort). Weight at birth, age of developmental milestones, economic deprivation in early childhood, acute stressors in childhood and adulthood, and socio-economic status (SES) in adulthood were assessed for their direct and indirect effects on adolescent (ages 13 and 15 years) and adult (ages 36, 43 and 53 years) measures of depressive symptoms in a structural equation modelling (SEM) framework. A structural equation model developed to incorporate all variables exhibited excellent model fit according to several indices.

RESULTS

The path of prediction from birthweight to age of developmental milestones to adolescent depression/anxiety to adult depression/anxiety was significant (p < 0.001). Notably, direct paths from birthweight (p = 0.25) and age of developmental milestones (p = 0.23) to adult depression were not significant. Childhood deprivation and stressors had important direct and indirect effects on depression. Stressors in adulthood were strongly associated with adult depression.

CONCLUSIONS

Depression in adulthood is influenced by an accumulation of stressors across the life course, including many that originate in the first years of life. Effects of early-life development on mental health appear by adolescence.

Longitudinal associations between childhood and adulthood externalizing and internalizing psychopathology and adolescent substance use

BACKGROUND

Emotional and behavioral problems are commonly associated with substance use in adolescence but it is unclear whether substance use precedes or follows mental health problems. The aim was to investigate longitudinal associations between externalizing and internalizing psychopathology and substance use in a prospective population study design.

METHOD

The sample was the Northern Finland Birth Cohort 1986 Study (NFBC 1986; n = 6349; 3103 males). Externalizing and internalizing mental health problems were assessed at age 8 years (Rutter scales), substance use and externalizing and internalizing problems [Youth Self-Report (YSR)] at age 15-16 years, and hospital diagnoses for internalizing disorders (age 25) and criminal offences (age 20) from nationwide registers in adulthood.

RESULTS

Externalizing problems at age 8 were associated with later substance use. After adjustment for sociodemographic factors, parental alcohol use and psychiatric disorders, and earlier externalizing and internalizing problems, substance use predicted criminality, especially among males, with the highest odds ratio (OR) for cannabis use [adjusted OR 6.2, 95% confidence interval (CI) 3.1-12.7]. Early internalizing problems were not a risk for later substance use. Female adolescent cannabis (OR 3.2, 95% CI 1.4-7.3) and alcohol (OR 2.1, 95% CI 1.1-4.2) use predicted internalizing disorders in adulthood.

CONCLUSIONS

Externalizing problems precede adolescent substance use in both genders, whereas, among boys, substance use also precedes criminal offences. Internalizing problems may follow substance use in females. These associations were robust even when taking into account previous mental health problems.

Do headache and abdominal pain in childhood predict suicides and severe suicide attempts? Finnish nationwide 1981 birth cohort study

This study investigated associations between pain symptoms in mid-childhood and severe suicidality in adolescence and early adulthood. Severe suicidality was defined as completed suicide or suicidal attempt requiring hospital admission. In a nationwide prospective population-based study (n = 6,017), parents and children were asked about the child's headache and abdominal pain at age eight. The outcome was register-based data on suicide or suicidal attempt requiring hospital treatment by age 24. Family composition, parental educational level, and the child's psychiatric symptoms reported by the child, parents and teacher at baseline were included as covariates in statistical analyses. Boys' abdominal pain reported by the parents was associated with later severe suicidality after adjusting for family composition, parental educational level, and childhood psychiatric symptoms at baseline. In addition, the association between boys' own report of headache and later severe suicidality reached borderline significance in unadjusted analysis. Girls' pain symptoms did not predict later severe suicidality.

The impact of gestational thyroid hormone concentrations on ADHD symptoms of the child

CONTEXT

Maternal hypothyroidism during pregnancy is associated with adverse neuropsychological development in the offspring.

OBJECTIVE

The objective of the study was to evaluate the effect of maternal thyroid dysfunction during pregnancy on a child's attention-deficit/hyperactivity disorder (ADHD) symptoms.

DESIGN, SETTINGS, AND PARTICIPANTS

The prospective, population-based Northern Finland Birth Cohort 1986 (9362 pregnancies; 9479 infants) included analysis of maternal TSH, free T4, and thyroid-peroxidase antibodies (TPO-Abs) from early pregnancy samples (5791 women). Teachers evaluated the children's ADHD symptoms at 8 years using the Rutter B2 scale (5131 mother-child pairs), in which a high score indicated probable psychiatric disorders and three questions focused directly on ADHD.

MAIN OUTCOME MEASURES

The odds ratios (ORs) and 95% confidence intervals (95% CIs) of child having ADHD symptoms and/or a high Rutter B2 score after exposure to increases in maternal TSH levels (after logarithmic transformation), low free T4 levels, and TPO-Ab positivity was tested with logistic regression, adjusting for maternal/family covariates. Data were stratified by the child's gender due to interaction.

RESULTS

Among girls the odds of inattention (OR 1.18, 95% CI 1.02-1.37), high Rutter B2 total score (OR 1.23, 95% CI 1.03-1.48), and combined ADHD symptoms (OR 1.39, 95% CI 1.07-1.80) significantly increased with every natural log increase in maternal TSH concentrations. Such findings were not evident in boys. No associations were seen between ADHD symptoms and low maternal free T4 levels or TPO-Ab positivity.

CONCLUSIONS

Increases in maternal TSH in early pregnancy showed weak but significant association with girls' ADHD symptoms.

Teachers' assessments of children's mental problems with respect to adolescents' subsequent self-reported mental health

PURPOSE

To investigate whether teachers' assessments of children are predictive of subsequent self-reported mental problems in adolescence and how these problems are concurrently linked with adolescents' overall life satisfaction.

METHOD

The study subjects originated from the prospective population-based Northern Finland Birth Cohort 1986 (N = 9,432). At age 8 years first-grade students' emotional and behavioral problems were assessed by their teachers with Rutter Children's Behavioural Questionnaires for teachers (RB2). At the age of 16 years, adolescents responded to the eight Youth Self-report (YSR) subscales and the one-item overall life satisfaction scale. Multivariate logistic regression was used to study the longitudinal relationship between RB2 and YSR.

RESULTS

Children who had emotional problems according to their teachers (RB2) were more prone to withdrawal and social problems in adolescence (YSR). Behavioral problems in childhood (RB2) were predictive of attention problems, and delinquent and aggressive behavior (YSR), while hyperactivity (RB2) was only predictive of attention problems and delinquent behavior (YSR). Additionally, each YSR subscale was strongly and linearly associated with concurrent self-reported life satisfaction in adolescence.

CONCLUSIONS

Teachers' assessments of children were predictive of self-reported mental problems in adolescence, which, in turn, were strongly associated with concurrent self-reported life satisfaction. In order to support favorable growth of children to well-adjusted adolescents and to intervene as early as possible in the event of adverse progression, both teachers' assessments of children and adolescent's self-rated overall life satisfaction should be acknowledged.

Suicidal and self-harm behaviour associated with adolescent attention deficit hyperactivity disorder-a study in the Northern Finland Birth Cohort 1986

BACKGROUND

Suicidal behaviour, i.e. suicidal ideation and suicidal acts, as well as self-harm behaviour, are relatively common among adolescents. Depression and/or female gender seem to be risk factors for suicidal behaviour. However, the role of attention deficit hyperactivity disorder (ADHD) in these behaviours is still unclear.

AIM

To study the effect of ADHD on suicidal or self-harm behaviour in adolescents from a general population sample.

METHODS

The sample was derived from a population-based Northern Finland Birth Cohort 1986 (n = 9432). Based on the Schedule for Affective Disorders and Schizophrenia for School-Age Children, Present and Lifetime Version (Kiddie-SADS-PL) interview performed in a subpopulation (n = 457), the associations between suicidal behaviour and deliberate self-harm (DSH) and the diagnosis of ADHD were studied.

RESULTS

Compared with adolescents without ADHD (n = 169), those with ADHD (n = 104) had more suicidal ideation (57% vs. 28%, P < 0.001) and DSH (69% vs. 32%, P < 0.001). In binary logistic models, the effect of ADHD on suicidal ideation remained strong (OR = 6.1) after controlling for several other predictors. Other contributing factors in suicidal behaviour included female gender, childhood emotional and behavioural problems, concurrent depression and anxiety, and, specifically in DSH, behavioural disorder, substance abuse and strains in family relations.

DISCUSSION AND CLINICAL IMPLICATIONS

ADHD is a risk factor for suicidal ideation and DSH. These findings in a general population sample speak for a need to target mental health interventions at children and adolescents with relevant symptoms of ADHD.

Depressions-Screening bei pädiatrischen Patienten

Fragestellung: Für das Screening depressiver Störungen im pädiatrischen Kontext wurde die konkurrente Validität des Depressionsinventars für Kinder und Jugendliche (DIKJ), der Skala Dysphorie aus dem Depressionstest für Kinder (DTK) und des Children’s Depression Screeners (ChilD-S) in Bezug auf ICD-10-Depressionsdiagnosen bei somatisch erkrankten Kindern verglichen. Methodik: Die Daten von 9- bis 12-jährigen pädiatrischen Patienten (N = 228) wurden mittels Receiver Operating Characteristics analysiert. Die daraus ableitbaren Kennwerte wie Area Under the Curve (AUC), Sensitivität (SE) und Spezifität (SP) wurden für jedes Instrument berechnet und miteinander verglichen. Als Goldstandard dienten Depressionsdiagnosen nach ICD-10, erhoben anhand des klinischen Interviews Kinder-DIPS. Ergebnisse: Die konkurrente Validität des 26 Items umfassenden DIKJ war sehr hoch (AUC = 92.6 %), der 25 Items umfassenden Skala Dysphorie zufriedenstellend (AUC = 86.2 %) und des 8 Items umfassenden ChilD-S hervorragend (AUC = 97.5 %); der ChilD-S war dem DIKJ signifikant überlegen. Nach dem Youden-Index sind folgende Cut-Off-Werte zu empfehlen: DIKJ ≥ 12 (SE = 91.7 %, SP = 81.9 %), Skala Dysphorie ≥ 10 (SE = 75.0 %, SP = 89.8 %) und ChilD-S ≥ 10 (SE ≥ 100 %, SP = 86.6 %). Schlussfolgerungen: Sowohl das DIKJ als auch der ChilD-S zeigte eine ausgezeichnete konkurrente Validität für das Screening depressiver Störungen bei pädiatrischen Patienten. Im Vergleich dazu erreichte die Skala Dysphorie etwas niedrigere Validitätsmaße. Für die Implementierung im zeitbegrenzten pädiatrischen Versorgungsalltag ist das ökonomische Verfahren ChilD-S zu favorisieren.

Pain at age eight as a predictor of antidepressant medication use by age 24: findings from the Finnish nationwide 1981 birth cohort study

BACKGROUND

The existing knowledge about long-term psychosocial consequences of childhood pain is scarce. The current study investigated childhood pain symptoms as potential risk factors for antidepressant use in adolescence and early adulthood.

METHODS

A representative sample of eight-year-old children (n=6017) and their parents were asked about the prevalence of the child's headache, abdominal pain, and unspecified pain symptoms. The associations with antidepressant purchases by age 24, based on the nationwide prescription register, were analyzed separately for each symptom and each reporter. Sex, parental educational level, and child-, parent- and teacher-reported child's psychiatric symptoms at baseline were included as confounding variables.

RESULTS

In the sex-adjusted model, the child's own report of headache and other pains, and the parents' report of their child's abdominal pain, predicted antidepressant purchases. When confounding variables were included in the final model, only the child's own report of headache predicted antidepressant use with a dose-response relationship. The hazard ratios and 95% confidence intervals for frequent and for almost daily headache were 1.6 (1.3-2.0) and 2.1 (1.5-2.9), respectively, in the sex-adjusted model, and 1.5 (1.2-1.8) and 1.7 (1.2-2.5) in the final model.

LIMITATIONS

The assessment of each pain symptom was based on one question for each reporter. The specific indications for the described medication could not be defined.

CONCLUSIONS

Health care professionals should also ask children themselves about the pain symptoms. They should be aware that children with pain are at increased risk of suffering later from conditions that require antidepressant treatment.

Children's Depression Screener (ChilD-S): development and validation of a depression screening instrument for children in pediatric care

The aim of the present study was to develop and validate the Children's Depression Screener (ChilD-S) for use in pediatric care. In two pediatric samples, children aged 9-12 (N(I) = 200; N(II) = 246) completed an explorative item pool (subsample I) and a revised item pool (subsample II). Diagnostic accuracy of each of the 22 items from the revised pool was evaluated in order to select the best items for the brief instrument ChilD-S. Areas under the curve (AUCs) of the revised item pool and the ChilD-S were compared. A diagnostic interview, the Kinder-DIPS, served as gold standard. For the purpose of screening for depressive disorders in children, the eight-item ChilD-S (AUC = 0.97) performed just as well as the revised 22-item pool (AUC = 0.94). For the ChilD-S the optimal cut-off point of ≥11 yielded a sensitivity of 0.91 and a specificity of 0.89. The ChilD-S shows high potential for depression screening of children in pediatric care.

Behavioural comorbidity in Tanzanian children with epilepsy: a community-based case-control study

AIM

The aim of this study was to define the prevalence of and risk factors for behavioural disorders in children with epilepsy from a rural district of Tanzania by conducting a community-based case-control study.

METHOD

One hundred and twelve children aged 6 to 14 years (55 males, 57 females; median age 12 y) with active epilepsy (at least two unprovoked seizures in the last 5 y) were identified in a cross-sectional survey and included in this study. Children who were younger than 6 years were excluded in order to eliminate febrile seizures. Behaviour was assessed using the Rutter scale; children who scored 13 or more were considered to have disordered behaviour. A comparison group was made up of age- and sex-matched children without epilepsy (n = 113; 57 males, 56 females; median age 12 y).

RESULTS

Behavioural disorders were diagnosed in 68 of 103 (66%) children with epilepsy and in 19 of 99 (19%) controls. Disordered behaviour was significantly more common in children with epilepsy than in the comparison group (univariate odds ratio 8.2; 95% confidence interval [CI] 4.3-15.6; p < 0.001) and frequent seizures and poor scholastic attainment were associated in children with epilepsy. Behavioural disorders were not associated with antiepileptic drug usage. Attention problems were present in 48 of 91 (53%) children with epilepsy and 16 of 97 (17%) controls (univariate odds ratio 5.7; 95% CI 2.9-11.1; p < 0.001). In children with epilepsy, attention problems were significantly more common in males and were associated with frequent seizures.

INTERPRETATION

Children with epilepsy in a rural area of sub-Saharan Africa have a high prevalence of behavioural disorders and attention problems, both of which are associated with frequent seizures. Providing behaviour assessment and appropriate intervention programmes for children with epilepsy may reduce the burden of behaviour disorders in this setting.

Association of maternal and paternal IQ with offspring conduct, emotional, and attention problem scores. Transgenerational evidence from the 1958 British Birth Cohort Study

CONTEXT

Individuals with lower IQ scores have an increased risk of psychological disorders, mental health problems, and suicide; similarly, children with low IQ scores are more likely to have behavioral, emotional, and anxiety disorders. However, little is known about the effect of parental IQ on the mental health outcomes of their children.

OBJECTIVE

To determine whether maternal and paternal IQ scores are associated with offspring conduct, emotional, and attention scores.

DESIGN

Cohort study.

SETTING

General population.

PARTICIPANTS

Members of the 1958 National Child Development Study and their offspring were studied. Of 2984 parent-offspring pairs with nonadopted children 4 years or older, 2202 pairs had complete data regarding all variables of interest and were included in the analyses.

MAIN OUTCOME MEASURES

Offspring conduct, emotional, and attention scores based on the Behavioral Problems Index for children aged 4 to 6 years or the Rutter A scale for children and adolescents 7 years and older.

RESULTS

Little evidence was observed of any association of parental IQ with conduct or emotional problems in children aged 4 to 6 years. However, among children and adolescents 7 years or older, strong evidence was observed from age- and sex-adjusted models to support a decrease in conduct, emotional, and attention problems in those whose parents had higher IQ scores. These associations were linear across the full IQ range. Individual adjustments for socioeconomic status and the child's own IQ had limited effect. However, adjustments for Home Observation for Measurement of the Environment scores and parental malaise attenuated associations with the mother's IQ but had little effect on associations with the father's IQ (scores were available for only 1 parent for each child or adolescent). Strong associations were no longer evident in models that simultaneously adjusted for all 4 potential mediating variables.

CONCLUSIONS

Children whose parents score poorly on IQ tests may have an increased risk of conduct, emotional, and attention problems. The home environment, parental malaise, and the child's own IQ may have a role in explaining these associations.

Teachers' assessments of children aged eight predict life satisfaction in adolescence

The objective was to investigate how teachers' assessments of children predict life satisfaction in adolescence. This is a prospective cohort study on the population-based Northern Finland Birth Cohort 1986 (n = 8,959). Information was gathered from parents, teachers and adolescents using questionnaires at the age of 7, 8 and 15. Response rates were 80-90%. Emotional and behavioural problems were assessed with Rutter Children's Behavioural Questionnaires for teachers (RB2) and parents (RA2) during the first grade at age 8. At adolescence, self-reported life satisfaction was measured with a question including five response alternatives. According to teachers' assessments, 13.9% of the children had high emotional or behavioural problems (RB2 ≥9). These assessments predicted life dissatisfaction in adolescence (OR(crude) = 1.77; 95% CI 1.43-2.20) in several models including also health behaviour and use of psychotropic medicine. However, introducing all the significant variables in the same model, RB2 lost its significance (OR = 1.28; 0.96-1.70), but good school achievement assessed by teachers was still a significant predictor. Life satisfaction in adolescence was associated with a variety of favourable concurrent factors. In conclusion teachers' assessments of children during the first school year predicted life satisfaction in adolescence. In mental health promotion, teachers' early assessments should be utilized for the benefit of children.

Behaviour problems in Chinese primary school children

PURPOSE

This study aimed to determine levels of behaviour problem in primary school children, and to explore key determinants relevant to the Chinese context: being an only child, urban living, school stressors, being bullied and physical punishment.

METHODS

We administered a child self-completion questionnaire to children aged 7-13 and Rutter Parent Scales to their parents in nine primary schools, in urban and rural Zhejiang Province, eastern China.

RESULTS

Full data were available for 2,203 child-parent pairs. Rutter Scores showed that 13.2% of the children (16.4% of boys, 9.4% of girls) had a behaviour problem. Girls manifest more emotional problems (5.3 vs. 2.3%) and boys more conduct problems. Questions about school stress showed that 78% worry "a lot" about exams, 80% felt pressure to perform at school "all the time", and 44% were bullied at least sometimes. Seventy-one percent were sometimes or often physically punished by their parents. Conduct problems were strongly significantly associated with male gender (OR 3.8 95% CI 3.0-4.6), rural residence OR 2.3, 1.3-3.4, having been bullied (1.8, 1.5-2.2) and frequent physical punishment (4.5, 3.2-5.8). Emotional problems were most strongly associated with being bullied (OR 4.9, 2.3-7.7). Being an only child was not associated with behaviour problems.

CONCLUSIONS

High levels of behaviour problems in these Chinese children could relate to high expectations in a very competitive educational environment. Our results raise concerns for the future mental well-being of those children with behaviour problems.

Association between adolescent emotional problems and metabolic syndrome: the modifying effect of C-reactive protein gene (CRP) polymorphisms

Depression is associated with the development of the metabolic syndrome, and both depression and metabolic syndrome are associated with markers of systemic inflammation, such as C-reactive protein (CRP). We examined associations between affective status in adolescence and adulthood, and the metabolic syndrome at age 53 years in a large representative British birth cohort. We also investigated whether two CRP gene polymorphisms (rs1205 and rs3093068) were associated with affective status and the metabolic syndrome, and whether the association between affective status and the metabolic syndrome was modified by these CRP polymorphisms. Women, but not men, with emotional problems in adolescence were more likely to have the metabolic syndrome (OR=1.53, 95% CI: 1.04, 2.26), although this sex difference was not statistically significant (p=0.22). The CRP SNPs were not associated with affective status or the metabolic syndrome, but the association of adolescent emotional problems with the metabolic syndrome was stronger in those who were homozygous for the major allele (C) of rs1205 (OR=1.83, 95% CI: 1.17, 2.86) than in carriers of the T allele (OR=1.01, 95% CI: 0.66, 1.55) (p=0.05 for gene by affective status interaction). This interaction was stronger when considering adolescent emotional problems as a continuous variable (p=0.003). Adolescent emotional problems play an important role in the development of the metabolic syndrome later in life, particularly in those homozygous for the major allele of CRP rs1205. These findings may highlight new ways of identifying people with emotional problems at high risk of developing the metabolic syndrome, which is of great importance for the management of the physical health of these patients.

Childhood predictors of use and costs of antidepressant medication by age 24 years: findings from the Finnish Nationwide 1981 Birth Cohort Study

OBJECTIVE

Prior studies on antidepressant use in late adolescence and young adulthood have been cross-sectional, and prospective associations with childhood psychiatric problems have not been examined. The objective was to study the association between childhood problems and lifetime prevalence and costs of antidepressant medication by age 24 years.

METHOD

A total of 5,547 subjects from a nation-wide birth cohort were linked to the National Prescription Register. Information about parent- and teacher-reported conduct, hyperkinetic and emotional symptoms, and self-reported depressive symptoms was gathered at age 8 years. The main outcome measure was national register-based lifetime information about purchases of antidepressants between ages 8 and 24 years. In addition, antidepressant costs were analyzed using a Heckman maximum likelihood model.

RESULTS

In all, 8.8% of males and 13.8% of females had used antidepressants between age 13 and 24 years. Among males, conduct problems independently predicted later antidepressant use. In both genders, self-reported depressive symptoms and living in other than a family with two biological parent at age 8 years independently predicted later antidepressant use. Significant gender interactions were found for conduct and hyperkinetic problems, indicating that more males who had these problems at age 8 have used antidepressants compared with females with the same problems.

CONCLUSIONS

Childhood psychopathology predicts use of antidepressants, but the type of childhood psychopathology predicting antidepressant use is different among males and females.

Childhood predictors of later psychiatric hospital treatment: findings from the Finnish 1981 birth cohort study

Psychiatric hospital treatment (PHT) is expensive and indicates a severe disorder. Investigation of the early identification of this small patient group has though been hindered by small samples or unsatisfactory assessment in childhood. The present study aims to study the predictive association between psychopathology at age 8 using multi-informant assessment and later PHT. A nationwide birth cohort of Finnish children (n = 5,346) was assessed at age 8 to obtain information about psychopathology using the Rutter parent and teacher reports and self-reports of depressive symptoms. The main outcome was admission to any hospital with a primary diagnosis of any psychiatric disorder according to the Finnish National Hospital Discharge Register between age 13 and 24. Between age 13 and 24, 6.2% of the males and 4.1% of the females had been admitted for PHT. Among males, PHT was independently predicted by non-intact family and adult reports of conduct and of emotional symptoms, while among females by self-reported depressive symptoms. However, the combination of conduct and emotional problems was the strongest predictor for PHT in both sexes. Admission due to psychosis among males was associated with childhood conduct, attention, and emotional problems, but with emotional problems among females. Psychopathology at age 8 can be seen as a long-lasting increased risk of severe psychiatric disorders requiring hospital treatment in adolescence or early adulthood. Attention should be paid to self-reports among females and of comorbid conduct and emotional problems in both sexes in the early identification of this patient group.

The prevalence of transitional object use in adolescence: is there a connection between the existence of a transitional object and depressive symptoms?

OBJECTIVE

The purpose of the study was to investigate the prevalence of the use of a transitional object (TO) in adolescence and its connection with depressive symptoms and mental distress in youth by gender.

METHOD

The study group consisted of 1,054 adolescents (465 boys, 589 girls) from normal comprehensive schools in Turku, a Finnish town with approximately 175,000 inhabitants. The mean age of both gender groups was 14.5 years (SD 0.5); respondents came from all social classes. Background and TO information was collected with questionnaires. Depressive symptoms and mental distress were explored by the children's depression inventory (CDI) and its subscales: low self-confidence, anhedonia and sadness.

RESULTS

Of all respondents, 29% (n = 285) had a TO: 37% of girls and 18% of boys. The difference between genders was statistically significant. There was also a statistically significant gender difference in the character of the TO reported: 72 % of girls with a TO had a soft toy, whereas 49% of boys with a TO used hard objects, such as pens, hard toys or books. TO-users showed more depressive symptoms than non-users, but the difference was not statistically significant (P = 0.053). Significant differences were found in the CDI subscales: TO-users had more sadness than non-users and girls using a TO showed more sadness than non-using girls. TO-using boys did not differ from non-using boys with regard to sadness or the other CDI-subscales.

CONCLUSIONS

The use of a TO seems to be common in adolescence. Adolescents with more depressive symptoms more often used a TO. The sadness of girls using TOs requires attention.

Childhood temperament and long-term sickness absence in adult life

BACKGROUND

Little is known as to whether childhood temperament is associated with long-term sickness absence in adult life.

AIMS

To explore the associations between childhood temperament and long-term sickness absence in middle age.

METHOD

The Aberdeen Children of the 1950s study is comprised of 12,150 children born in Aberdeen 1950-55. Teachers completed the Aberdeen-London Child Behaviour Scale (Rutter B) for all participants in 1964. Current employment status was ascertained for 7183 (63.7%) in 2001.

RESULTS

Five and a half per cent of responders classified themselves as 'permanently sick or disabled' at follow-up. 'Often complains of aches and pains' (OR=6.75, 95% CI 1.28-35.5) and 'Often appears miserable or unhappy' (OR=3.81, 95% CI 1.01-14.4) were strongly associated with being permanently sick or disabled following adjustment for year of birth, gender, IQ and father's social class.

CONCLUSIONS

Childhood temperament is strongly associated with sickness absence in middle age.

Factor structure of the Rutter Teacher Questionnaire in Portuguese children

OBJECTIVE: To examine the factor structure of the Rutter Teacher Questionnaire in Portuguese primary school children. METHOD: The Rutter Teacher Questionnaire, a 26-item scale covering a variety of behavioral problems, was completed by teachers of 877 children, aged 6 to 11 years. Data were subjected to factor analysis using the principal components solution with varimax rotation. RESULTS: The factorial analysis in total sample revealed three factors explaining 38.88% of the total variance. The factors contained items representing hyperactivity/conduct (Factor 1), anxious/depressive (Factor 2) and truancy/stealing (Factor 3). The highest correlations between factors scores were for Factor 1 and Factor 3. These Factors scores were higher in boys than girls and correlated with lower social class. All three Factors scores correlated with school performance. The comparison between separate factorial structures for the samples of boys and girls revealed a considerable overlap. CONCLUSIONS: The pattern of the items contained on Factor 1 appears to be related with the category of hyperkinetic conduct disorder used by the International Classification of Diseases-10. Results suggest that the Portuguese language version of the Rutter Teacher Questionnaire possesses good psychometric properties and may be considered a useful instrument for measuring children's behavior problems.

Victimization and bullying among 8-year-old Finnish children: a 10-year comparison of rates

OBJECTIVE

There are only few population-based time-trend studies on changes in prevalence of bullying and victimization among children. The main aim of this study was to find out whether changes have occurred in prevalence rates of bullying and victimization from 1989 to 1999 among eight-year-old children. The associations between victimization and bullying and psychiatric symptoms and their possible differences in the statistical strengths of associations between the years 1989 and 1999 were also studied.

METHOD

Two cross-sectional, representative samples from southern Finland were compared. All children born in 1981 (1989 sample, n = 985, response rate 95%) and 1991 (1999 sample, n = 962, response rate 86%) and living in the selected school district were included in the study samples. Children, parents and teachers were asked about bullying and victimization. The Children's Depression Inventory and Rutter's parent and teacher scales were used to study psychiatric symptoms.

RESULTS

In 1999, fewer 8-year-old children were victims of bullying than in 1989. There was a decrease in the number of bullies but the change was statistically significant only in the parental reports. The statistical strengths of associations of victimization and bullying with psychiatric symptoms were mainly the same in 1989 as in 1999.

CONCLUSIONS

Slightly decreased levels of victimization among 8-year-old Finnish children is a promising result, but further time-trend studies are needed, as well as qualitative studies, to obtain a deeper understanding of the bullying phenomenon and the factors reducing it. It might be that especially young children are suspectible to influences diminishing victimisation and bullying.

Does Adolescent Affect Impact Adult Social Integration? Evidence from the British 1946 Birth Cohort

Using data from the MRC National Survey of Health and Development (the British 1946 birth cohort), we take a life course approach with a sociology of mental health framework to examine the relationship between adolescent affect and adult social integration. The results suggest that being observed as anxious or sad in adolescence has long-term effect on adult social integration. These associations are not explained by adult mental health or socioeconomic status, for the most part. The results demonstrate support for social selection processes between adolescent mental health and adult social outcomes and suggest a disparate effect of type of adolescent affect on adult social outcomes.

Have there been changes in children's psychosomatic symptoms? A 10-year comparison from Finland

OBJECTIVES

The aims of the study were to determine whether the prevalence of children's somatic symptoms, such as headache, abdominal pain, other pain, and nausea and vomiting, changed from 1989 to 1999 and to study the similarity of parents' and children's reports of the child's symptoms. Furthermore, the aims were to explore possible comorbidity in somatic symptoms and to investigate the associations between somatic and psychiatric symptoms.

METHODS

Two cross-sectional, representative samples were compared. All children born in 1981 (1989 sample, n = 985) and 1991 (1999 sample, n = 962) and living in selected school districts in southwest Finland served as study samples. The response rate for the 1989 sample was 95% and that for the 1999 sample was 86%. Both children and parents were asked about the children's somatic symptoms, whereas parents, children, and teachers were asked about psychiatric symptoms. To study psychiatric symptoms, the Children's Depression Inventory and Rutter's parent and teacher scales were used.

RESULTS

The prevalence of frequent headaches and abdominal pain increased somewhat from 1989 to 1999. Parents often failed to recognize their children's psychosomatic problems. Child-reported somatic symptoms were associated with conduct and hyperactivity symptoms, in addition to a previously well-documented association with depression. In associations between somatic symptoms and psychiatric symptoms, there were some differences between the 1989 and 1999 samples.

CONCLUSIONS

In clinical work, questions about somatic and psychiatric symptoms should also be addressed to children themselves, because parents and teachers do not always recognize children's symptoms. When somatic problems are being evaluated, psychiatric symptoms should be asked about, and vice versa. More research is needed to explore the reasons for the increased prevalence of somatic symptoms and their associations with psychiatric symptoms.

Youth-parent consistencies on ratings of difficulties and prosocial behavior: Exploration of an at-risk sample

Low informant agreement is of particular concern in clinical settings, since diagnoses and interventions are largely based on reports from parents and/or youths. This study explores youth-parent consistencies in an at-risk sample of youths (n = 42), several from immigrant and refugee families, all with stressful background experiences. Data from a community sample (n = 165) was used to contrast the clinical results. Results showed that correlations between clinical youths and parents were within the same range as those in the community sample. Consistencies concerning absolute level of behavior were higher in the clinical sample. However, interesting differences in informant consistencies were found on difficulties and resources between the two samples. This study adds to the picture that there is no simple relationship between severity of behavior deviance and informant agreement. Asking about behavioral resources as well as difficulties may provide valuable additional information regarding differences in the perspectives of at-risk youths and parents.

The Aberdeen Children of the 1950s cohort study: background, methods and follow-up information on a new resource for the study of life course and intergenerational influences on health

In this paper we introduce and describe in detail an addition to the UK's population-based resources for the investigation of biological and social influences on health across the life course and between generations: the Aberdeen Children of the 1950s study. We also provide an account of postwar Aberdeen when study members were growing up, report on findings of analyses of data from the original survey on which this study is based and its follow-up, assess the strengths and limitations of the study, and outline current and future research directions. This cohort comprises individuals born in Aberdeen, Scotland (UK) between 1950 and 1956, and is derived from 15 thousand subjects who took part in the Aberdeen Child Development Survey, a cross-sectional study of 'mental subnormality' (learning disability) in a population of all children who were attending Aberdeen primary schools in December 1962. Data collection included information on birthweight, gestational age, childhood height and weight, tests of cognition and behavioural disorder, and a range of multilevel socio-economic indicators. In 1998 we began the process of revitalising this cohort (now termed the Aberdeen Children of the 1950s study). We have been successful in ascertaining the current vital status and whereabouts of 98.5% of a target population of 12 150 subjects (6276 males, 5874 females) with full baseline data. The large majority (81%) of study participants still reside in Scotland and many (73%) have remained in the Grampian region which incorporates Aberdeen. At the present time, a total of almost 500 subjects are known to have died. Linkages to hospital admissions and other health endpoints captured through the Scottish Morbidity Records system have been completed. This includes an intergenerational linkage to approximately eight thousand deliveries in Scotland occurring to female members of the study population. A postal questionnaire to all traced surviving cohort members has also been distributed.

Children's Mental Health in Times of Economic Recession: Replication and Extension of the Family Economic Stress Model in Finland

This study evaluated the applicability of the family economic stress model (FESM) in understanding the influences of economic hardship on child mental health during a nationwide economic recession in Finland. The information was gathered from 527 triads of 12-year-olds and their mothers and fathers from a population sample. The structural equation models showed that the FESM fit the data well, indicating its generalizability in Finnish society. The results confirmed that a reduction in disposable family income constitutes a risk for child mental health through increased economic pressure and negative changes in parental mental health, marital interaction, and parenting quality. Controlling the children's prerecession mental health substantiated that economic hardship can lead to deterioration in children's mental health. Alternative models based on fully recursive analyses revealed reciprocal influences between parents and their children over time: Children's prerecession mental health problems predicted compromised parenting, which in turn contributed to children's internalizing and externalizing symptoms during the recession.

Validity of the Swedish version of the Strengths and Difficulties Questionnaire (SDQ-Swe)

The Strengths and Difficulties Questionnaire (SDQ) is an internationally widely used, brief screening instrument for mental health problems in children and teenagers. The SDQ probes behaviours and psychological attributes reflecting the child's difficulties as well as strengths, and targets hyperactivity/inattention, emotional symptoms, conduct problems, peer problems and prosocial behaviour. Also, the instrument taps the impact aspect, i.e. whether the child is judged to suffer from emotional or behavioural problems severe enough to cause distress or social impairment. Studies of the original English SDQ, as well as of translations into several other languages, attest to a compelling usefulness and validity of the instrument. In this investigation, the adequacy of the Swedish adaptation of the SDQ (SDQ-Swe) was tested in comparisons between parent reports on 5-15-year-old children drawn from a community sample (n=263) and from a child psychiatric sample (n=230). Results showed that the instrument differentiated well between the community and the psychiatric samples, the latter displaying more symptoms, fewer strengths and more social impairment. Moreover, ROC analyses showed satisfactory sensitivity and specificity of the principal scales of the SDQ-Swe at proposed cut-offs. Hence, results showed adequate validity of the SDQ-Swe, suggesting that this new instrument, an instrument in tune with the ideas of contemporary child psychiatry and psychology, is a useful tool for mental health screening in children and adolescents.

Self-image and depressive symptoms among adolescents in a non-clinical sample

The connection between self-image and depressive symptoms in non-clinical adolescent populations has not been well documented in large samples of teenagers. Our purpose was to investigate the correlation between self-image and depressive symptoms. To assess the adolescent's self-concept, we used the Offer Self-Image Questionnaire (OSIQ), and to study their depressive symptoms, we chose the Children's Depression Inventory (CDI). The sample consisted of 1054 eighth-grade students (465 boys, 589 girls) from normal comprehensive schools in one town with 200 000 inhabitants. The mean age of both gender groups was 14.5 years and they came from all social classes. The results showed a highly significant correlation between OSIQ scale scores and CDI scores. The more problems the adolescents had with their self-image, the greater the number of depressive symptoms. The correlation between the CDI total score and OSIQ scales scores was higher for girls than for boys except for the Superior Adjustment scale. The difference between sexes in the strengths of the correlations was highly significant (P<0.0001) except in the Sexuality scale. Since both the tests have shown to have predictive value for later psychiatric symptoms, further investigation of high-scoring CDI adolescents', and especially girls', self-image problems is important.

The Children's Depression Inventory: error in cutoff scores for screening purposes

The Children's Depression Inventory (CDI) is used to screen for depression in school-age children. Such screening uses the manual's reported information on suggested cutoff scores. These cutoff scores are based on an erroneous base-rate calculation and an inadequate methodology. Data are provided showing that for the suggested cutoff scores of 13 or 20, the CDI has poor receiver-operating characteristics. Indeed, for the cutoff score of 20, suggested as being suitable for screening in the general population (e.g., schools), clinicians will miss 86% of depressed children. In conclusion, it is recommended that the CDI is better suited as a continuous measure of mood and that cutoff scores should not be used to screen for the likely presence or absence of depression.

Behavioural and emotional symptoms in 8-9-year-old children

We present epidemiological data from a multi-centre study on psychiatric symptoms among 6017 8-9-year-old children representing a total annual birth cohort (N = 60007) in Finland. The results are based on three questionnaires: the Rutter Parent Scale (RA2), the Rutter Teacher Scale (RB2), the Children's Depression Inventory (CDI). The proportion of children that scored above the cutoff points, indicating probable psychiatric disturbance, were 11.2% for the RA2, 13.9% for the RB2 and 6.9% for the CDI. Twenty-four percent of the subjects scored above the cutoff point on at least one of the questionnaires. Low family social status and disrupted family relations correlated strongly with high rates of symptoms in the children.

Behavioural/emotional symptoms among 8-9-year-old children with somatic symptoms or illnesses as reported by their teacher

The aim of this study was to assess children's behavioural/emotional symptoms at school and to compare these symptoms of somatically healthy children with those of children with somatic illnesses or symptoms. The Rutter Teacher Questionnaire (RB2) was used for measuring psychiatric symptoms in 5813 children aged 8-9 years. The parents reported the somatic symptoms and illnesses of their children during the previous 12 months. One hundred and sixty one children had a marked or serious chronic illness, 292 had a mild chronic illness, and 92 had one or several symptoms. The findings suggest that boys with a marked or serious chronic somatic illness are prone to manifest psychiatric symptoms in their interactions with peers and teachers at school and that boys with a mild chronic illness have less psychiatric symptoms than healthy boys.