Sensitivity of the Diagnostic Interview Schedule for Children, 2nd edition (DISC-2.1) for specific diagnoses of children and adolescents

The role of child maltreatment and adolescent victimization in predicting adolescent psychopathology and problematic substance use

BACKGROUND

Maltreated children are more likely to experience adolescent victimization, which may underlie the association between maltreatment and adolescent psychopathology and substance use.

OBJECTIVE

To determine whether number of adolescent victimization types predicts adolescent psychopathology and problematic substance use over and above number of child maltreatment subtypes; whether adolescent victimization mediates the relations between maltreatment and change in adolescent psychopathology and problematic substance use; and whether maltreatment moderates the relation between adolescent victimization and changes in these outcomes.

PARTICIPANTS AND SETTING

Participants were 545 (295 maltreated, 250 non-maltreated; 328 males, 217 females) racially and ethnically diverse (52.8 % Black, 27.5 % White, 12.8 % Bi-racial; 13.4 % Latino/a) children and families from the Rochester, New York, USA area assessed across three waves of data (Wave 1, Mage = 7.6 years; Wave 2, Mage = 13.8 years; Wave 3, Mage = 16.2 years).

METHODS

Maltreatment was coded at Wave 1 using Department of Human Services records. Adolescents self-reported psychopathology, problematic substance use, and victimization at Waves 2 and 3.

RESULTS

Structural equation modeling revealed that adolescent victimization predicted adolescent psychopathology (β = 0.24, p < .001) and problematic substance use (β = 0.27, p < .001) over and above child maltreatment. Adolescent victimization did not mediate the association between child maltreatment change in psychopathology and problematic substance use and child maltreatment did not moderate the association between adolescent victimization and these outcomes.

CONCLUSIONS

We discuss the importance of future research utilizing multi-wave designs to examine relations between these constructs and of assessing for more proximal victimization.

Validation of the Diagnostic Interview Schedule for Children (DISC-5) Tic Disorder and Attention-Deficit/Hyperactivity Disorder Modules

Effective methods to assess mental disorders in children are necessary for accurate prevalence estimates and to monitor prevalence over time. This study assessed updates of the tic disorder and attention-deficit/hyperactivity disorder (ADHD) modules of the Diagnostic Interview Schedule for Children, Version 5 (DISC-5) that reflect changes in diagnostic criteria in the Diagnostic and Statistical Manual of Mental Disorders (Fifth edition, DSM-5). The DISC-5 tic disorder and ADHD parent- and child-report modules were compared to expert clinical assessment for 100 children aged 6-17 years (40 with tic disorder alone, 17 with tic disorder and ADHD, 9 with ADHD alone, and 34 with neither) for validation. For the tic disorder module, parent-report had high (>90%) sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy, while the youth-report had high specificity and PPV, moderate accuracy (81.4%), and lower sensitivity (69.8%) and NPV (67.3%). The ADHD module performed less well: parent-report had high NPV (91.4%), moderate sensitivity (80.8%), and lower specificity (71.6%), PPV (50.0%), and accuracy (74.0%); youth-report had moderate specificity (82.8%) and NPV (88.3%), and lower sensitivity (65.0%), PPV (54.2%), and accuracy (78.6%). Adding teacher-report of ADHD symptoms to DISC-5 parent-report of ADHD increased sensitivity (94.7%) and NPV (97.1%), but decreased specificity (64.2%), PPV (48.7%), and accuracy (72.2%). These findings support using the parent-report tic disorder module alone or in combination with the child report module in future research and epidemiologic studies; additional validation studies are warranted for the ADHD module.

Surveillance of ADHD Among Children in the United States: Validity and Reliability of Parent Report of Provider Diagnosis

OBJECTIVE

To evaluate the appropriateness of parent-reported diagnosis of ADHD as a surveillance tool.

METHOD

We assessed agreement over time and concordance of parent-reported diagnosis against Diagnostic and Statistical Manual (DSM)-based criteria. We compared concordance of diagnosis and DSM-based criteria by child characteristics, including treatment.

RESULTS

Among parents who reported their child had ADHD, 95.7% reported it again 2 years later. Comparing diagnosis with DSM-based criteria, specificity and negative predictive value were high, sensitivity was moderate, and positive predictive value was low. Most children with an ADHD diagnosis who did not meet DSM-based criteria met sub-threshold criteria or took medication for ADHD. Concordance differed by child characteristics and treatment.

CONCLUSION

Parent-reported diagnosed ADHD is reliable over time. Although differences in parent-reported diagnosis and DSM-based criteria were noted, these may reflect children with milder symptoms or treated ADHD. Parent-report of child ADHD ever diagnosis may be a good single-item indicator for prevalence.

Estimating demand for mental health care among Australian children and adolescents: Findings from the Young Minds Matter survey

OBJECTIVE

Mental health service use by individuals without a diagnosed mental disorder is sometimes termed 'met un-need'. However, provision of services for this group may be necessary to provide appropriate assessment, referral and early intervention. This study quantified child and adolescent use of, and perceived need for, mental health services to inform population-level service planning.

METHODS

Young people in Australia's Young Minds Matter survey (n = 5837, 5-17 years), were categorised into four 'need' groups: (1) 12-month mental disorder diagnosis; (2) remitted for more than 12 months (or experiencing a condition not surveyed); (3) 12-month subthreshold mental health problem; and (4) no indication of need for help (i.e. did not meet the requirements of the first three categories). Service demand (use of, or perceived need for, a mental health service) and number of sessions received were estimated for each, separately for children (5-11 years) and adolescents (12-17 years).

RESULTS

Some 20.1% (95% CI: [18.6, 21.7]) of children and 32.3% (95% CI: [30.5, 34.2]) of adolescents expressed a demand for mental health services in the past year. Service demand decreased across the need groups. Perceived need without service use was higher among those with a 12-month subthreshold mental health problem (13.8/20.2%) than those who had experienced a mental health problem that had remitted for more than 12 months (or were experiencing a condition not surveyed) (9.3/12.6%). In addition, 23.6% of children and 24.6% of adolescents with a demand for mental health services were classified as experiencing no indication of need for help.

CONCLUSIONS

This study quantified the number of children and adolescents in Australia who are likely to require mental health services. Findings suggest that not everyone in this group who has an expressed service demand meets diagnostic thresholds, but among those who do, service demand is higher.

Tobacco smoking and mental disorders in Australian adolescents

OBJECTIVES

This study aimed to (1) examine the strength of the association between mental disorders/mental health problems, risk behaviours and tobacco smoking among Australian adolescents, (2) compare rates of tobacco smoking among Australian adolescents with major depressive disorder, attention-deficit/hyperactivity disorder and/or conduct disorder in 2013/14 vs 1998, and (3) identify the extent to which an association between tobacco smoking and mental health problems among adolescents can be attributed to non-mental health risk factors.

METHODS

The study utilised data from the first (1998) and second (2013/14) child and adolescent components of the National Surveys of Mental Health and Wellbeing. Both surveys identified nationally representative samples of Australian young people aged 4-17 years, living in private dwellings. Information was collected from parents and 13- to 17-year-olds about mental disorders, mental health problems, risk behaviours and tobacco smoking.

RESULTS

In the 2013/14 survey, the rate of current tobacco smoking among those with a mental disorder was 20% compared to 5% in those without a mental disorder. Rates were highest for young people with conduct disorder (50%), major depressive disorder (24%) and anxiety disorders (19%). In 2013/14, 38% of current tobacco smokers had a mental disorder and 32% reported self-harm and/or suicidal ideation vs 10% and 5%, respectively, among adolescents who had never smoked. Females with mental disorders or reporting self-harm or suicidal ideation had higher rates of current smoking than males. Other significant factors associated with current smoking included school-related problems, binge eating and having had more than one sexual partner.

CONCLUSION

While smoking rates in 13- to 17-year-olds with mental disorders had declined since 1998, the strength of the association between mental disorders and smoking had increased, especially among females. Our findings highlight the need to address the tobacco smoking among adolescents with mental disorders, particularly females.

Depression and anxiety have a larger impact on bullied girls than on boys to experience self-harm and suicidality: A mediation analysis

BACKGROUND

The mechanism underlying the correlation between bullying victimization, self-harm and suicidality by gender are not well understood. This study, therefore, aimed to investigate whether the mediating effect of mental disorder (depression and anxiety) on the association between bullying victimization, and self-harm and suicidality vary across boys and girls.

METHODS

Overall, 2522 Australian adolescents aged 12-17-year-olds were analyzed from a nationally representative cross-sectional survey: Young Minds Matter. A series of logistic regressions were employed using Baron and Kenny's approach to test the mediating effect of each mental disorder on the relationship between bullying victimization, and self-harm and suicidality across gender. Further, the Sobel test was used to estimate the indirect effect.

RESULTS

Out of 784 (31.1%) bullied victims, 53.2% were girls and 46.8% were boys. A higher proportion of girls compared to boys experienced depression, anxiety, self-harm and suicidality (p < 0.001 for all). The relationships between bullying victimization, and self-harm and suicidality were mediated by depression (p < 0.05) in both boys and girls. While anxiety disorder mediated the association only in girls (p < 0.05).

LIMITATIONS

Cross-sectional study design does not imply causality. Self-reported data about self-harm and suicidality may be susceptible to social desirability bias.

CONCLUSION

Girls were more affected by bullying, self-harm and suicidality than boys. Depression mediated the correlation between bullying, and self-harm and suicidality in both boys and girls. While anxiety influenced only bullied girls to experience self-harm and suicidality. These findings warrant the need for gender-specific prevention programs to combat bullying and subsequently self-harm and suicidality in adolescents.

Adolescent alcohol use predicts cannabis use over a three year follow-up period

Background: Alcohol and cannabis use frequently co-occur, which can result in problems from social and academic impairment to dependence (i.e., alcohol use disorder [AUD] and/or cannabis use disorder [CUD]). The Emergency Department (ED) is an excellent site to identify adolescents with alcohol misuse, conduct a brief intervention, and refer to treatment; however, given time constraints, alcohol use may be the only substance assessed due to its common role in unintentional injury. The current study, a secondary data analysis, assessed the relationship between adolescent alcohol and cannabis use by examining the National Institute of Alcohol Abuse and Alcoholism (NIAAA) two question screen's (2QS) ability to predict future CUD at one, two, and three years post-ED visit. Methods: At baseline, data was collected via tablet self-report surveys from medically and behaviorally stable adolescents 12-17 years old (n = 1,689) treated in 16 pediatric EDs for non-life-threatening injury, illness, or mental health condition. Follow-up surveys were completed via telephone or web-based survey. Logistic regression compared CUD diagnosis odds at one, two, or three-year follow-up between levels constituting a single-level change in baseline risk categorization on the NIAAA 2QS (nondrinker versus low-risk, low- versus moderate-risk, moderate- versus high-risk). Receiver operating characteristic curve methods examined the predictive ability of the baseline NIAAA 2QS cut points for CUD at one, two, or three-year follow-up. Results: Adolescents with low alcohol risk had significantly higher rates of CUD versus nondrinkers (OR range: 1.94-2.76, p < .0001). For low and moderate alcohol risk, there was no difference in CUD rates (OR range: 1.00-1.08). CUD rates were higher in adolescents with high alcohol risk versus moderate risk (OR range: 2.39-4.81, p < .05). Conclusions: Even low levels of baseline alcohol use are associated with risk for a later CUD. The NIAAA 2QS is an appropriate assessment measure to gauge risk for future cannabis use.

Associations Between Eczema and Attention Deficit Hyperactivity Disorder Symptoms in Children

BACKGROUND

Epidemiological studies suggest a link between eczema and attention deficit hyperactivity disorder (ADHD), but underlying mechanisms have not been examined.

OBJECTIVE

We aim to investigate the association between eczema and subsequent ADHD symptoms in the Growing Up in Singapore Towards healthy Outcomes cohort and explore the role of pro-inflammatory cytokines and gut microbiome.

METHODS

The modified International Study of Asthma and Allergies in Childhood questionnaire and Computerized Diagnostic Interview Schedule for Children Version IV were administered to assess reported eczema within the first 18 months and presence of ADHD symptoms at 54 months, respectively. Skin prick testing at 18 months, cytokines in maternal blood during pregnancy and cord blood and the mediating role of the gut microbiome at 24 months were assessed.

RESULTS

After adjusting for confounders, eczema with or without a positive skin prick test was associated with doubling the risk of ADHD symptoms. No differences in maternal and cord blood cytokines were observed in children with and without eczema, or children with and without ADHD. Gut microbiome dysbiosis was observed in children with eczema and children with ADHD. Children with eczema also had lower gut bacterial Shannon diversity. However, the relationship between eczema and ADHD was not mediated by gut microbiome.

CONCLUSION

Early life eczema diagnosis is associated with a higher risk of subsequent ADHD symptoms in children. We found no evidence for underlying inflammatory mechanism or mediation by gut microbiome dysbiosis. Further research should evaluate other mechanisms underlying the link between eczema and ADHD.

CLINICAL TRIAL REGISTRATION

[https://clinicaltrials.gov/ct2/show/NCT01174875], identifier [NCT01174875].

Estimating income-related and area-based inequalities in mental health among nationally representative adolescents in Australia: The concentration index approach

Despite the awareness of the importance of mental health problems among adolescents in developed countries like Australia, inequality has not been widely researched. This study, is therefore, aimed to measure and compare household income-related and area-based socioeconomic inequalities in mental health problems (bullying victimization, mental disorders-single and multiple, self-harm and suicidality-ideation, plan and attempt) among Australian adolescents aged 12-17 years. Young Minds Matter (YMM)-the 2nd national cross-sectional mental health and well-being survey involving Australian children and adolescents conducted in 2013-14, was used in this study to select data for adolescents aged 12-17 years (n = 2521). Outcome variables included: bullying, mental disorders, self-harm, and suicidal ideation, plan and attempt. The Erreygers's corrected concentration index (CI) approach was used to measure the socioeconomic inequalities in mental health problems using two separate rank variables-equivalised household income quintiles and area-based Index of Relative Socioeconomic Advantage and Disadvantage (IRSAD) quintiles. The prevalence of mental health problems in the previous 12-months among these study participants were: bullying victimization (31.1%, 95% CI: 29%-33%), mental disorder (22.9%, 95% CI: 21%-24%), self-harm (9.1%, 95% CI: 8%-10%), suicidal ideation (8.5%, 95% CI: 7%-10%), suicidal plan (5.9%, 95% CI: 5%-7%) and suicidal attempt (2.8%, 95% CI: 2%-3%). The concentration indices (CIs) were statistically significant for bullying victimization (CI = -0.049, p = 0.020), multiple mental disorders (CI = -0.088, p = <0.001), suicidal ideation (CI = -0.023, p = 0.047) and suicidal attempt (CI = -0.021, p = 0.002), implying pro-poor socioeconomic inequalities based on equivalized household income quintiles. Similar findings revealed when adolescents mental health inequalities calculated on the basis of area based IRSAD (Index of Relative Socio-economic Advantage and Disadvantage) quintiles. Overall, adolescents from economically worse-off families experienced more mental health-related problems compared to those from economically better-off families. This has implications for prevention strategies and government policy in order to promote mental health and provide equitable healthcare facility.

Trajectories of academic achievement for students with attention-deficit/hyperactivity disorder

BACKGROUND

Attention-deficit/hyperactivity disorder (ADHD) is associated with negative social and occupational outcomes across the life course. However, there has been limited population-based research that quantifies the impact of ADHD on academic achievement and academic trajectories.

AIMS

To compare academic performance and academic trajectories of students with ADHD with students without a mental disorder.

SAMPLE

Data were drawn from Young Minds Matter, a national population-based sample of 6,310 Australian children and adolescents aged 4-17 years. Using linked achievement test data, the academic performance and trajectories of 327 students with ADHD were compared with those of 3,916 students without a mental disorder.

METHODS

Survey data were combined with scores on national standardized tests for literacy and numeracy over an 8-year period.

RESULTS

In Year 3, students with ADHD were on average 1 year behind students with no mental disorder in reading and numeracy, and 9 months behind in writing. In Year 9, the gaps were much larger with students with ADHD on average 2.5 years behind in reading, 3 years behind in numeracy, and 4.5 years behind in writing.

CONCLUSIONS

Students with ADHD have substantially lower achievement in reading, writing, and numeracy. Writing was the most adversely affected domain. For example, in Year 9 students with ADHD were on average writing at a Year 5 level. Children and adolescents with ADHD need substantial support to manage inattention, impulsivity, and hyperactivity. Skilled remediation in literacy and numeracy is required throughout all school years.

Bullying victimization, mental disorders, suicidality and self-harm among Australian high schoolchildren: Evidence from nationwide data

The effects of bullying on mental health among adolescents are of major public health concern, especially following modern bullying methods that technologically victimize adolescents. However, the independent effects of different forms of bullying (traditional, cyberbullying or both) on different types of mental disorders, suicidality and self-harm are not clear. Using a cross-sectional study design, involving 2166 Australian high schoolchildren (1131 Boys and 1035 Girls) aged 12-17 years, this study examined the associations of bullying victimization (traditional, cyber and both) with mental disorders, suicidality (ideation, plan and attempt) and self-harm. Both bivariate and multivariate analyses were employed to assess the associations. Victims of traditional bullying and cyberbullying incurred a significantly higher risk of major depressive disorder, suicidality and self-harm compared to those who had not encountered such threats. Findings also indicated the need for early identification of bullying victims to prevent the risk of mental disorders, suicidality and self-harm in schoolchildren. Furthermore, this evidence can be utilized to inform decisions regarding the provision of resources to address this important health issue in the context of any developed countries like Australia.

Sex Without Contraceptives in a Multicenter Study of Adolescent Emergency Department Patients

OBJECTIVES

In the United States, rates of teenage pregnancy and sexually transmitted infections (STIs) remain exceptionally high, and racial and ethnic disparities persist. Emergency departments (EDs) care for over 19 million adolescents each year, the majority being minority and low socioeconomic status. Single-center studies demonstrate infrequent use of contraceptives among adolescent ED patients and an association between risky sex and behaviors such as alcohol and drug use; however, no multicenter ED data exist. The objectives of this study were to 1) determine the prevalence of sex without contraceptives in a large multicenter adolescent ED study and 2) assess patient demographic and risky behaviors associated with sex without contraceptives.

METHODS

Participants aged 14 to 17 years (n = 3,247) in 16 pediatric EDs across the United States completed an electronic survey. Questions focused on validated measures of risky sex; use of alcohol, tobacco, marijuana, and other drugs; and depression and violence. In this secondary analysis, we constructed univariable and multivariable models to identify demographic and behavioral factors associated with sex without contraceptives (our primary outcome), separately for adolescent males and females.

RESULTS

In the prior year, 17.4% (236/1,356) of males and 15.8% (299/1,891) of females had sex without contraceptives. In the multivariable model, sex without contraceptives for both genders was more likely among teens who were black, with conduct problems and participated in casual sex, binge drinking, or cannabis use. Sex without contraceptives was also more likely among Hispanic and cigarette-smoking males, as well as depressed females.

CONCLUSIONS

Adolescent ED patients across the United States are participating in risky sexual behaviors that increase their likelihood of pregnancy and STI acquisition. These adolescents report a number of problem behaviors, including substance use, which are strongly correlated with unprotected sex. The ED visit may be an opportunity to identify at-risk adolescent patients, address risky behaviors, and intervene to improve adolescent health.

The roles of repetitive negative thinking and perfectionism in explaining the relationship between sleep onset difficulties and depressed mood in adolescents

OBJECTIVE

The present study investigated the relationship between difficulty initiating sleep and depressed mood and whether it is mediated by repetitive negative thinking. A moderating role of perfectionism was also examined.

METHODS

We surveyed 393 adolescents aged 14 to 20 years (M = 17.32, SD = 1.90) via an online questionnaire that assessed difficulty initiating sleep, repetitive negative thinking, perfectionism, and depressed mood.

RESULTS

Results indicated that repetitive negative thinking fully mediated the relationship between difficulty initiating sleep and depressed mood. In addition, this relationship was moderated by perfectionism, specifically, the relationship between repetitive negative thinking and depressed mood was stronger among more perfectionistic adolescents.

CONCLUSIONS

These findings highlight that repetitive negative thinking is significantly associated with both difficulty initiating sleep and depressed mood, supporting the conceptualization of repetitive negative thinking as a transdiagnostic process. Further, individual differences in perfectionism may amplify the relationship between repetitive negative thinking and mood. The role of repetitive negative thinking and perfectionism in explaining the link between sleep onset problems and depressed mood has important clinical implications through providing possible treatment targets.

Risk-Taking and Delinquent Behaviors Among Youth with and without Intellectual Disabilities

INTRODUCTION

Youth with intellectual disabilities (ID) demonstrate higher rates of disruptive behavior disorders (DBDs) than youth with typical development (TD). DBDs such as oppositional defiant disorder (ODD) predict higher rates of delinquency during adolescence. Yet, few studies have examined risk-taking and delinquency among youth with ID.

METHODS

We used a self-report measure to determine whether 13-year-old youth with ID (n= 23) reported higher rates of risk-taking and delinquent behavior than their TD peers (n=77). We also examined whether or not youth had a previous diagnosis of ODD.

RESULTS

Our results suggest that youth with ID reported fewer rule-breaking and risk-taking behaviors than their TD peers. In contrast, youth with a previous diagnosis of ODD reported more of these behaviors.

CONCLUSION

Our results appear discrepant from previous studies, which find higher rates of risk-taking and delinquency among youth with ID. As such, we discuss the factors that may explain our discrepant results, including our definition and assessment of ID, and the age of our participants.

Methodology and Demographics of a Brief Adolescent Alcohol Screen Validation Study

OBJECTIVE

The aim of this study was to determine the psychometric properties of the National Institute on Alcohol Abuse and Alcoholism (NIAAA) 2-question alcohol screen within 16 Pediatric Emergency Care Applied Research Network pediatric emergency departments. This article describes the study methodology, sample characteristics, and baseline outcomes of the NIAAA 2-question screen.

METHODS

Participants included 12- to 17-year-olds treated in one of the participating pediatric emergency departments across the United States. After enrollment, a criterion assessment battery including the NIAAA 2-question screen and other measures of alcohol, drug use, and risk behavior was self-administered by participants on a tablet computer. Two subsamples were derived from the sample. The first subsample was readministered the NIAAA 2-question screen 1 week after their initial visit to assess test-retest reliability. The second subsample is being reassessed at 12 and 24 months to examine predictive validity of the NIAAA 2-question screen.

RESULTS

There were 4834 participants enrolled into the study who completed baseline assessments. Participants were equally distributed across sex and age. Forty-six percent of the participants identified as white, and 26% identified as black. Approximately one quarter identified as Hispanic. Using the NIAAA 2-question screen algorithm, approximately 8% were classified as low risk, 12% were classified as moderate risk, and 4% were classified as highest risk. Alcohol use was less likely to be reported by black participants, non-Hispanic participants, and those younger than 16 years.

DISCUSSION

This study successfully recruited a large, demographically diverse sample to establish rates of the NIAAA screen risk categories across age, sex, ethnicity, and race within pediatric emergency departments.

Predictive Validity of the CRAFFT for Substance Use Disorder

BACKGROUND

The utility of CRAFFT (Car, Relax, Alone, Forget, Friends, Trouble) in identifying current and future problematic substance use and substance use disorders (SUDs) in pediatric emergency department (PED) patients is unknown. We conducted a secondary analysis of a study in 16 PEDs to determine the concurrent and predictive validity of CRAFFT with respect to SUD.

METHODS

At baseline, 4753 participants aged 12 to 17 years completed an assessment battery (CRAFFT and other measures of alcohol, drug use, and risk behaviors). A subsample was readministered the battery at 1-, 2-, and 3-year follow-up to investigate future SUDs.

RESULTS

Of 2175 participants assigned to follow-up, 1493 (68.6%) completed 1-year, 1451 (66.7%) completed 2-year, and 1265 (58.1%) completed the 3-year follow-up. A baseline CRAFFT value of ≥2 was significantly associated with problematic substance use or mild or moderate to severe SUD diagnosis on the Diagnostic Interview Schedule for Children at baseline (P < .001). The results persisted after 1, 2, and 3 years (P < .001). The best combined sensitivity and specificity was achieved with a baseline CRAFFT value of ≥1 as a cutoff for predicting problematic substance use and a Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition diagnosis of mild SUD at 1, 2, and 3 years. The baseline CRAFFT score that best predicted a moderate to severe SUD at 1 year was ≥2; but at 2 and 3 years, the cutoff score was ≥1.

CONCLUSIONS

CRAFFT has good concurrent validity for problematic substance use and SUD in PED patients and is useful in predicting SUDs at up to 3 years follow-up but with limited sensitivity.

Reliability and Validity of the Newton Screen for Alcohol and Cannabis Misuse in a Pediatric Emergency Department Sample

OBJECTIVES

To determine the test-retest reliability, concurrent, convergent, and discriminant validity of a recently devised screen (the Newton screen) for alcohol and cannabis use/misuse, and its predictive validity at follow-up.

STUDY DESIGN

Adolescents, 12-17 years old (n = 4898), treated in 1 of 16 participating pediatric emergency departments across the US were enrolled in a study as part of a larger study within the Pediatric Emergency Care Applied Research Network. Concurrent and predictive validity (at 1, 2, and 3 years of follow-up) were assessed in a random subsample with a structured Diagnostic and Statistical Manual of Mental Disorders-based interview. Convergent validity was assessed with the Alcohol Use Disorders Identification, a widely used alcohol screening measure.

RESULTS

The sensitivity of the Newton screen for alcohol use disorder at baseline was 78.3% with a specificity of 93.0%. The cannabis use question had a baseline sensitivity of 93.1% and specificity of 93.5% for cannabis use disorder. Predictive validity analyses at 1, 2, and 3 years revealed high specificity but low sensitivity for alcohol and high specificity and moderate sensitivity for cannabis.

CONCLUSIONS

The Newton screening instrument may be an appropriate brief screening tool for use in the busy clinical environment. Specificity was high for both alcohol and cannabis, but sensitivity was higher for cannabis than alcohol. Like other brief screens, more detailed follow-up questions may be necessary to definitively assess substance misuse risk and the need for referral to treatment.

Adequacy of treatment for child and adolescent mental disorders in Australia: A national study

OBJECTIVE

Worldwide, little information is available about the extent to which children with mental disorders in the general population receive treatment from health professionals that meets minimal clinical practice guidelines. This study identifies the percentage of 6-17 year olds with mental disorders in the 2013-2014 Australian national survey of mental health who had sufficient contact with health professionals during the 18 months after the survey to have received treatment meeting criteria for minimally adequate treatment (MAT). It also identifies factors associated with children having this level of contact with health professionals.

METHOD

Mental disorders were identified using the Diagnostic Interview Schedule for Children Version IV completed by parents. Health professional attendances and psychotropic medications dispensed were identified from linked national Medicare Benefits Schedule and Pharmaceutical Benefits Scheme records.

RESULTS

Only 11.6% (95% confidence interval [CI] [9.1, 14.8]) of children with disorders ( n = 517) had sufficient contact to achieve study criteria for MAT. Furthermore, among children with mental disorders who had severe functional impairment and whose parents perceived that their child needed help ( n = 146), 20.2% (95% CI [14.3, 27.9]) had contact sufficient for MAT, 46.0% (95% CI [37.8, 54.4]) had contact that did not achieve MAT criteria and 33.8% (95% CI [26.1, 42.3]) had no contact with health professionals. In multivariable regression, children with moderate or severe functional impairment were more likely to have had sufficient contact to meet MAT criteria.

CONCLUSION

During the 18 months after being identified with a mental disorder, only a small percentage of children have enough contact with health professionals to allow provision of MAT. This may be contributing to the unchanging high prevalence of childhood mental disorders.

Predictive Validity of a 2-Question Alcohol Screen at 1-, 2-, and 3-Year Follow-up

BACKGROUND

The National Institute on Alcohol Abuse and Alcoholism (NIAAA) 2-question screen is a valid adolescent alcohol screening tool. No studies have examined if this tool predicts future alcohol problems. We conducted a study at 16 pediatric emergency departments to determine the tool's predictive validity for alcohol misuse and alcohol use disorders (AUDs).

METHODS

Participants (N = 4834) completed a baseline assessment battery. A subsample of participants completed the battery at 1, 2, and 3 years follow up.

RESULTS

Of the 2209 participants assigned to follow-up, 1611 (73%) completed a 1-year follow-up, 1591 (72%) completed a 2-year follow-up, and 1377 (62%) completed a 3-year follow-up. The differences in AUDs between baseline NIAAA screen nondrinkers and lower-risk drinkers were statistically significant at 1 year (P = .0002), 2 years (P <.0001), and 3 years (P = .0005), as were the differences between moderate- and highest-risk drinkers at 1 and 2 years (P < .0001 and P = .0088, respectively) but not at 3 years (P = .0758). The best combined score for sensitivity (86.2% at 1 year, 75.6% at 2 years, and 60.0% at 3 years) and specificity (78.1% at 1 year, 79.2% at 2 years, and 80.0% at 3 years) was achieved by using "lower risk" and higher as a cutoff for the prediction of a Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition diagnosis.

CONCLUSIONS

The NIAAA 2-question screen can accurately characterize adolescent risk for future AUDs. Future studies are needed to determine optimaluse of the screen.

Disordered eating among Australian adolescents: Prevalence, functioning, and help received

OBJECTIVE

To estimate the prevalence of disordered eating (DE) among Australian adolescents and examine associations with clinical mental health problems, problems with functioning, and help received.

METHOD

We analyzed data from the Young Minds Matter survey (n = 2,298, 13-17 years). We derived an index of DE severity with four levels: (1) no DE; (2) subclinical DE; (3) suspected eating disorder; and (4) lifetime eating disorder diagnosis.

RESULTS

In 2013-2014, 31.6% (95%CI 35.5-39.9) of Australian adolescents experienced DE, comprising 25.7% (95%CI 23.9-37.6) with subclinical DE, 11.0% (95%CI 9.7-12.6) with a suspected eating disorder, and 0.9% (95%CI 0.6-1.3) with a lifetime eating disorder diagnosis. DE was more common among girls (41.4%, 95%CI 37.9-44.4) than boys (34.0%, 95%CI 31.1-37.0; p = .002). Adolescents with DE, compared to those without, were more likely to experience clinical mental health problems and problems with functioning. Most adolescents with DE reported help-seeking in the past year, commonly self-help; around 40% used school-based, primary care or specialist services (i.e., formal services). In multivariate analyses, the use of more specialized and intensive services was associated with more severe DE, greater problems with functioning, female gender, and 12-month mental disorder or subthreshold mental disorder symptoms.

DISCUSSION

The implementation of mental health promotion and prevention efforts for DE, and screening for DE in school and primary care settings, may facilitate detection and appropriate help-seeking among adolescents with DE.

Screening for Adolescent Alcohol Use in the Emergency Department: What Does It Tell Us About Cannabis, Tobacco, and Other Drug Use?

BACKGROUND

The pediatric emergency department (PED) represents an opportune time for alcohol and drug screening. The National Institute of Alcohol Abuse and Alcoholism (NIAAA) recommends a two-question alcohol screen for adolescents as a predictor of alcohol and drug misuse.

OBJECTIVE

A multi-site PED study was conducted to determine the association between the NIAAA two-question alcohol screen and adolescent cannabis use disorders (CUD), cigarette smoking, and lifetime use of other drugs.

METHODS

Participants included 12-17-year olds (n = 4834) treated in one of 16 participating PEDs. An assessment battery, including the NIAAA two-question screen and other measures of alcohol, tobacco and drug use, was self-administered on a tablet computer.

RESULTS

A diagnosis of CUD, lifetime tobacco use or lifetime drug use was predicted by any self-reported alcohol use in the past year, which indicates a classification of moderate risk for middle school ages and low risk for high school ages on the NIAAA two-question screen. Drinking was most strongly predictive of a CUD, somewhat weaker for lifetime tobacco use, and weakest for lifetime drug use. This same pattern held for high school and middle school students and was stronger for high school students over middle school students for all three categories. This association was also found across gender, ethnicity and race. The association was strongest for CUD for high school students, sensitivity 81.7% (95% CI, 77.0, 86.5) and specificity 70.4% (95% CI, 68.6, 72.1). Conclusions/Importance: A single question about past year alcohol use can provide valuable information about other substance use, particularly marijuana.

Predictors of adult outcomes in clinically- and legally-ascertained youth with externalizing problems

Externalizing problems (EP), including rule-breaking, aggression, and criminal involvement, are highly prevalent during adolescence, but the adult outcomes of adolescents exhibiting EP are characterized by heterogeneity. Although many youths' EP subside after adolescence, others' persists into adulthood. Characterizing the development of severe EP is essential to prevention and intervention efforts. Multiple predictors of adult antisocial personality disorder (ASPD) and legal outcomes of a large sample (N = 1205) of clinically- or legally-ascertained adolescents (ages 12-19 years) with severe EP were examined. Many psychosocial predictors hypothesized to predict persistence of EP demonstrated zero-order associations with adult outcomes, but accounted for little unique variation after accounting for baseline conduct disorder symptoms (CD) and demographic factors. Baseline measures of intelligence, which explained independent variation in legal outcomes, provided the only consistent exception to this pattern, though future work is needed to parse these effects from those of socioeconomic factors. CD severity during adolescence is a parsimonious index of liability for persistence of EP into adulthood that explains outcome variance above and beyond all other demographic and psychosocial predictors in this sample.

Access to health professionals by children and adolescents with mental disorders: Are we meeting their needs?

OBJECTIVE

To identify the percentage of 4-17 year olds with mental disorders in Australia who attended health professionals for single or repeat visits to get help for emotional and behavioural problems during a 12-month period. To identify factors associated with single and repeat visits, and the average length of time between visits. To compare the number of parent-reported visits with visits recorded in the Medicare Benefits Schedule.

METHOD

The study used data from the national survey of the mental health and wellbeing of 4-17 year olds conducted in 2013-2014 ( n = 6310). Participants were randomly selected from all 4 to 17 year olds in Australia. Information about visits was available from face-to-face interviews with parents, the Medicare Benefits Schedule and self-reports from 13 to 17 year olds. Mental disorders were assessed using the Diagnostic Interview Schedule for Children Version IV completed by parents.

RESULTS

Parents reported that 51.1% of 4-17 year olds with mental disorders had attended a health professional during the previous 12 months. However, 13.6% of these children had attended on only a single occasion, most commonly with a general practitioner. With the exception of occupational therapists, 2-4 visits was the most common number of repeat visits. Children with comorbid disorders and severe functional impairment and those aged 12-17 years were more likely to have repeat visits. Among those with linked Medicare Benefits Schedule data, more children were reported by parents to have attended Medicare Benefits Schedule-funded health professionals (47.9%) than were recorded in Medicare Benefits Schedule data (38.0%).

CONCLUSION

The typical number of visits to health professionals by children with mental disorders during a 12-month period is relatively small. Furthermore, parent-reports may overestimate the number of visits during this time. It seems unlikely that current patterns of attendance are of sufficient duration and frequency to allow full implementation of evidence-based treatment programmes for child and adolescent mental disorders.

Problem Behaviors and Psychological Distress Among Teens Seen in a National Sample of Emergency Departments

BACKGROUND

Problem behaviors, such as substance use and peer aggression, frequently coexist and are common among youth seen in emergency departments (EDs). EDs are increasingly urged to screen for both psychological distress and problem behaviors.

OBJECTIVE

To inform screening and intervention efforts, we aimed to identify classes of problematic substance use and peer aggression in a sample of adolescents from 16 pediatric EDs, and to examine the relative prevalence of psychological distress in identified classes.

METHODS

We completed a cross-sectional survey of youth (n = 5001) presenting for any reason to 16 pediatric EDs across the United States, with the use of validated measures of demographics, alcohol and substance use, and peer aggression. We used standard latent class analysis techniques to create behavioral risk classes of adolescents based on violence and substance use variables; then we conducted logistic regression to examine the relationship between psychological distress and the latent classes.

RESULTS

Three classes of problem behaviors were identified: low-risk (few problem behaviors, 91.2% of sample), medium risk (high cigarette smoking; moderate violence, alcohol/substance use; 5.2%), and high risk (high levels of all problem behaviors, 3.5%). A significant directional association (P < .001) between worse psychological distress and higher-risk behavior classes was noted, even after adjusting for demographics.

CONCLUSIONS

Youth seen in the ED for any reason who report higher levels of past-year substance use and peer aggression are significantly more likely to report negative mood symptoms. Targeted screening and interventions for this population may be indicated.

Prevalence of Mental Disorders Among Children and Adolescents of Parents with Self-Reported Mental Health Problems

This paper provides Australian population-level estimates of the prevalence of parental self-reported lifetime mental disorders and past 12 month mental disorders in their children. It leverages unique data from the 2013-2014 Australian Child and Adolescent Survey of Mental Health and Wellbeing (Young Minds Matter) (n = 6310). Mental disorders were assessed in 4-17 year-olds using the Diagnostic Interview Schedule for Children Version IV. Primary carer (PC) and secondary carer mental health was based on PC-reported lifetime diagnoses. Over one-third of 4-17 year-olds had a PC with a lifetime diagnosis. The prevalence of all disorders was significantly higher amongst these children than children whose PC reported no diagnoses, and highest when the PC had comorbid and more severe disorders. Assessing mental health needs at a family level is important to identify children who are particularly vulnerable to developing mental disorders, to develop targeted interventions, and to understand the intergenerational transmission of risk.

Effect of Middle School Interventions on Alcohol Misuse and Abuse in Mexican American High School Adolescents: Five-Year Follow-up of a Randomized Clinical Trial

IMPORTANCE

Substance abuse preventive interventions frequently target middle school students and demonstrate efficacy to prevent early onset and use of alcohol and illicit drugs. However, evidence of sustained results to prevent later patterns of alcohol misuse and more serious alcohol abuse disorders has been lacking, particularly for US Latino populations.

OBJECTIVE

To test whether a universal middle school prevention program can reduce the frequency of alcohol misuse and rates of alcohol use disorder 5 years after implementation with a Mexican American sample.

DESIGN, SETTING, AND PARTICIPANTS

A previous randomized clinical trial was conducted with 516 Mexican American 7th graders and at least 1 parent who identified as having Mexican origin. Three annual cohorts of families were recruited from rosters of 4 middle schools and randomized to the 9-session Bridges/Puentes family-focused group intervention or a workshop control condition. Recruitment, screening, pretest, and randomization occurred in the same academic year for each cohort: 2003-2004, 2004-2005, and 2005-2006. Data acquisition for the follow-up assessments of late-adolescent alcohol misuse and abuse, which were not included in the initial randomized clinical trial, was conducted from September 2009 to September 2014; analysis was conducted between August 2016 and July 2017. In this assessment, 420 children (81.4%) of the sample were included, when the majority were in their final year of high school.

INTERVENTIONS

The 9-session Bridges/Puentes intervention integrated youth, parent, and family intervention sessions that were delivered in the spring semester at each school, with separate groups for English-dominant vs Spanish-dominant families. The control workshop was offered during the same semester at each school, also in English and Spanish.

MAIN OUTCOMES AND MEASURES

Primary outcomes were diagnostic assessment of lifetime alcohol use disorder in the 12th grade, 5 years after the intervention, based on the Diagnostic Interview Schedule for Children and past-year frequency of alcohol use, binge drinking, and drunkenness based on the 2001 Youth Risk Behavior Survey.

RESULTS

Of the 420 participants, 215 (51.2%) were girls (mean [SD] age, 17.9 [0.62] years). The intervention reduced the likelihood of having an alcohol use disorder (β = -.93; SE, 0.47; P = .047; odds ratio, 0.39). Intervention associations with past-year alcohol use frequency, binge drinking, and drunkenness were moderated by baseline substance use. The intervention reduced the frequency of alcohol use (β = -.51; SE, 0.24; P = .04; Cohen d = 0.43) and drunkenness (β = -.51; SE, 0.26; P = .049; Cohen d = 0.41) among youth who reported any previous substance use at baseline (T1 initiators) but not among those who had not initiated any substance use (T1 abstainers) at baseline. For past-year binge drinking, the intervention finding did not reach statistical significance among T1 initiators (β = -.40; SE, 0.23; P = .09) or T1 abstainers (β = .23; SE, 0.14; P = .11).

CONCLUSIONS AND RELEVANCE

Study results support an association between a universal middle school intervention and alcohol misuse and alcohol use disorders among Mexican American high school students and implementation of universal middle school interventions to reach Latino communities.

Has the Prevalence of Child and Adolescent Mental Disorders in Australia Changed Between 1998 and 2013 to 2014?

OBJECTIVE

This study examined whether the 12-month prevalence of major depressive disorder (MDD), attention-deficit/hyperactivity disorder (ADHD), and conduct disorder (CD) among 6- to 17-year-olds in Australia changed between 1998 and 2013 to 2014. It also investigated whether changes in the prevalence of disorders over this time varied for children living in families containing 2 parents versus single parents, and families with high versus low income.

METHOD

The study used data from national surveys conducted in Australia in 1998 (N = 3,597) and 2013 to 2014 (N = 5,359). In both surveys, the participating individuals were randomly selected from all 6- to 17-year-olds in Australia, and mental disorders were assessed using the Diagnostic Interview Schedule for Children Version IV (DISC-IV), completed by parents.

RESULTS

There was little change in the overall prevalence of mental disorders between 1998 (12.5%, 95% CI = 11.4-13.7) and 2013 to 2014 (11.1%, 95% CI = 10.1-12.2). Although there were some differences in the changes for children with different disorders, most were small in magnitude. Specifically, MDD prevalence increased from 2.1% (95% CI = 1.7-2.7) to 3.2% (95% CI = 2.7-3.8), ADHD prevalence declined from 9.9% (95% CI = 8.9-10.9) to 7.8% (95% CI = 6.9-8.7), and CD prevalence declined from 2.7% (95% CI = 2.2-3.3) to 2.1% (95% CI = 1.7-2.7). There was a persisting pattern of higher prevalence among children living in single-parent and low-income households.

CONCLUSION

Lack of change at a population level in the prevalence of child mental disorders suggests that new innovations in research, policy, and practice are needed to successfully address the major public health problem posed by child and adolescent mental disorders in the community.

Mental disorders in Australian 4- to 17- year olds: Parent-reported need for help

OBJECTIVE

To describe the extent to which parents report that 4- to 17-year-olds with symptoms meeting Diagnostic and Statistical Manual of Mental Disorders, 4th edition criteria for mental disorders need help, the types of help needed, the extent to which this need is being met and factors associated with a need for help.

METHOD

During 2013-2014, a national household survey of the mental health of Australia's young people (Young Minds Matter) was conducted, involving 6310 parents (and carers) of 4- to 17-year-olds. The survey identified 12-month mental disorders using the Diagnostic Interview Schedule for Children - Version IV ( n = 870) and asked parents about the need for four types of help - information, medication, counselling and life skills.

RESULTS

Parents of 79% of 4- to 17-year-olds with mental disorders reported that their child needed help, and of these, only 35% had their needs fully met. The greatest need for help was for those with major depressive disorder (95%) and conduct disorder (93%). Among these, 39% of those with major depressive disorder but only 19% of those with conduct disorder had their needs fully met. Counselling was the type of help most commonly identified as being needed (68%). In multivariate models, need for counselling was higher when children had autism or an intellectual disability, in blended families, when parents were distressed, and in the most advantaged socioeconomic areas.

CONCLUSIONS

Many children and adolescents meeting Diagnostic and Statistical Manual of Mental Disorders, 4th edition criteria for mental disorders have a completely unmet need for help, especially those with conduct disorders. Even with mild disorders, lack of clinical assessment represents an important missed opportunity for early intervention and treatment.

Measurement Issues: The measurement of obsessive compulsive disorder in children and young people in clinical practice

BACKGROUND

If left untreated, obsessive compulsive disorder (OCD) can cause significant distress and impact on functioning throughout the lifespan. Despite the severity of the disorder, there is often a significant delay between the onset of symptoms and successful treatment. This is in part due to delays in recognising OCD symptoms in young people, particularly if the symptom forms are less common. Once OCD is accurately diagnosed, cognitive behavioural therapy (CBT) is known to be an efficacious treatment, sometimes in combination with medication, producing good long-term prognosis. It is therefore important to accurately detect OCD in children and young people so that they can be offered timely intervention. Use of the best tools in clinical and research settings improves detection and diagnosis, as well as enabling the tracking of progress through treatment. The aim of this current paper was to review measurement tools for OCD in young people with a focus on the practicalities of using tools in busy child mental health clinical settings.

METHOD

To discover what measurement tools are available for OCD in young people, we conducted a pragmatic literature of measurement tools for OCD in young people. We searched PsycINFO, Med-Line and the Cochrane databases for reports relating to the measurement of OCD. Additionally, we sought information from the National Institute for Health and Care Excellence (NICE) guidance, the Child Outcomes Research Consortium (CORC) website and the Children and Young People's Improving Access to Psychological Therapies (CYP IAPT) Programme. We also reviewed large trials and meta-analyses of the treatment of OCD in young people and communicated with relevant researchers/clinicians.

RESULTS

Seventeen questionnaire measurement tools, with variable psychometric properties, and four commonly used semistructured clinician administered interview measures were identified.

CONCLUSIONS

There are several measurement tools with good psychometric properties that are useful for initial screening/identification of OCD, as well as formal diagnosis, symptom tracking and treatment evaluation. With the availability of brief screens, as well as online diagnostic measures, such tools should not be a burden on clinical practice, but rather a helpful aid to support clinicians' assessment and treatment of OCD.

Family structure and childhood mental disorders: new findings from Australia

PURPOSE

Many children now live in non-traditional families-including one-parent, blended, and step families. While a substantial body of international evidence indicates that these children display poorer cognitive and socio-emotional outcomes than children living in traditional families, research on childhood mental disorders is scarce. This report provides new evidence of the relationships between family structure and childhood mental disorders in an under-researched context, Australia.

METHODS

We use recent, nationally representative data on children aged 4-17 from Young Minds Matter, the second Australian Child and Adolescent Survey of Mental Health and Well-being (N = 6310). Mental disorders were assessed using the Diagnostic Interview Schedule for Children-Version IV and included social phobia, separation anxiety disorder, generalised anxiety disorder, obsessive-compulsive disorder, major depressive disorder, attention-deficit/hyperactivity disorder, and conduct disorder.

RESULTS

Compared to children living in original families, children in one-parent, blended, and step families experienced a higher prevalence of mental disorders. Amongst children whose parents separated, the time since separation was not statistically significantly related to the prevalence of mental disorders.

CONCLUSIONS

Although we are unable to assess causality, our findings highlight the strength of the association between family structure and child and adolescent mental health. They also stress the need for programs to support children, parents, and families in non-traditional family types to reduce mental health inequalities in childhood and later life.

The Prevalence of Stimulant and Antidepressant Use by Australian Children and Adolescents with Attention-Deficit/Hyperactivity Disorder and Major Depressive Disorder: A National Survey

OBJECTIVES

To identify the prevalence of stimulant and antidepressant medication use by children and adolescents with symptoms meeting the criteria for attention-deficit/hyperactivity disorder (ADHD) and major depressive disorder (MDD) in Australia. To identify factors associated with stimulant and antidepressant use by children and adolescents in Australia.

METHODS

Data are from a nationally representative sample of 4- to 17-year-olds (n = 6310). Parents completed the Diagnostic Interview Schedule for Children-Version IV (DISC-IV) and the Strengths and Difficulties Questionnaire. Eleven- to 17-year-olds completed a self-report version of the DISC-IV MDD module. Interviewers recorded prescribed medications used by participants in the previous 2 weeks.

RESULTS

During a 2-week period, 1.3% of all 4- to 17-year-olds and 13.7% of those with symptoms meeting the criteria for ADHD had used stimulant medication, while 0.9% of all 4- to 17-year-olds and 13.4% with MDD had used antidepressants. In total, 22.6% of those using stimulant medications and 57.7% using antidepressant medications did not have symptoms meeting criteria for ADHD or MDD, respectively. Among 11- to 17-year-olds, 5.6% of those with adolescent-only-reported MDD, 10.9% of those with parent/carer-only-reported MDD, and 25.7% of those with MDD reported by both parents/carers and adolescents were using antidepressant medications.

CONCLUSIONS

Only a minority of 4- to 17-year-olds with ADHD and MDD were being treated with stimulant or antidepressant medication. The percentage of adolescents with MDD using antidepressant medications varied depending on whether adolescents, parents/carers, or both identified the presence of MDD. This highlights the importance of using information from both these informants when assessing and treating adolescent depressive disorder.

Trajectories of Substance Use Disorder in Youth After Detention: A 12-Year Longitudinal Study

OBJECTIVE

To identify trajectories of substance use disorders (SUDs) in youth during the 12 years after detention and how gender, race/ethnicity, and age at baseline predict trajectories.

METHOD

As part of the Northwestern Juvenile Project, a longitudinal study of 1,829 youth randomly sampled from detention in Chicago, Illinois from 1995 through 1998, participants were reinterviewed in the community or correctional facilities up to 9 times over 12 years. Independent interviewers assessed SUDs using the Diagnostic Interview Schedule for Children 2.3 (baseline) and the Diagnostic Interview Schedule IV (follow-ups). Primary outcome was a mutually exclusive 5-category typology of disorder: no SUD, alcohol alone, marijuana alone, comorbid alcohol and marijuana, or "other" illicit ("hard") drug. Trajectories were estimated using growth mixture models with a 3-category ordinal variable derived from the typology.

RESULTS

During the 12-year follow-up, 19.6% of youth did not have an SUD. The remaining 81.4% were in 3 trajectory classes. Class 1 (24.5%), a bell-shaped trajectory, peaked 5 years after baseline when 42.7% had an SUD and 12.5% had comorbid or "other" illicit drug disorders. Class 2 (41.3%) had a higher prevalence of SUD at baseline, 73.8%. Although prevalence decreased over time, 23.5% had an SUD 12 years later. Class 3 (14.6%), the most serious and persistent trajectory, had the highest prevalence of comorbid or "other" illicit drug disorders-52.1% at baseline and 17.4% 12 years later. Males, Hispanics, non-Hispanic whites, and youth who were older at baseline (detention) had the worst outcomes.

CONCLUSION

Gender, race/ethnicity, and age at detention predict trajectories of SUDs in delinquent youth. Findings provide an empirical basis for child psychiatry to address health disparities and improve prevention.

Reliability and Validity of a Two-Question Alcohol Screen in the Pediatric Emergency Department

BACKGROUND AND OBJECTIVE

A multisite study was conducted to determine the psychometric properties of the National Institute of Alcohol Abuse and Alcoholism (NIAAA) 2-question alcohol screen within pediatric emergency departments (PEDs).

METHODS

Participants (N = 4838) included 12- to 17-year-old subjects treated in 1 of the 16 participating PEDs across the United States. A criterion assessment battery (including the NIAAA 2-question alcohol screen and other measures of alcohol, drug use, and risk behaviors) was self-administered on a tablet computer. A subsample (n = 186) was re-administered the NIAAA 2-question screen 1 week later to assess test-retest reliability.

RESULTS

Moderate to good test-retest reliability was demonstrated. A classification of moderate risk or higher on the screen had the best combined sensitivity and specificity for determining a diagnosis of alcohol use disorder (AUD) for all students. Any past year drinking among middle school students increased the odds of a diagnosis of an AUD according to Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition criteria, whereas the optimal cutoff for high school ages was ≥3 drinking days in the past year. The optimal cutoff for drinking days determining a positive Alcohol Use Disorders Identification Test score among middle school subjects was ≥1 drinking day, whereas the optimal cutoff for high school subjects was ≥2 drinking days.

CONCLUSIONS

The NIAAA 2-question screen is a brief, valid approach for alcohol screening in PEDs. A positive screen suggests that referral for further evaluation is indicated to determine if an adolescent has an AUD.

Self-harm: Prevalence estimates from the second Australian Child and Adolescent Survey of Mental Health and Wellbeing

OBJECTIVE

To (1) estimate the lifetime and 12-month prevalence of self-harm without suicide intent in young people aged 12-17 years, (2) describe the co-morbidity of these behaviours with mental illness and (3) describe their co-variation with key social and demographic variables.

METHOD

A nationally representative random sample of households with children aged 4-17 years recruited in 2013-2014. The survey response rate was 55% with 6310 parents and carers of eligible households participating. In addition, 2967 (89%) of young people aged 11-17 completed a self-report questionnaire with 2653 of the 12- to 17-year-olds completing questions about self-harm behaviour.

RESULTS

In any 12-month period, about 8% of all 12- to 17-year-olds (an estimated 137,000 12- to 17-year-olds) report engaging in self-harming behaviour without suicide intent. This prevalence increases with age to 11.6% in 16- to 17-year-olds. Eighteen percent (18.8%; 95% confidence interval [CI] = [14.5, 23.0]) of all 12- to 17-year-old young people with any mental health disorder measured by parent or carer report said that they had engaged in self-harm in the past 12 months. Among young people who were measured by self-report and met criteria for the Diagnostic and Statistical Manual of Mental Disorders' major depressive disorder almost half (46.6%; 95% CI = [40.0, 53.1]) also reported that they had engaged in self-harm in the past 12 months. Suicide risk among those who self-harm is significantly elevated relative to the general population.

CONCLUSION

The demonstrated higher risks in these young people for continued harm or possible death support the need for ongoing initiatives to reduce self-harm through mental health promotion, improved mental health literacy and continuing mental health reform to ensure services are accessible to, and meet the needs of families and young persons.

Service use by Australian children for emotional and behavioural problems: Findings from the second Australian Child and Adolescent Survey of Mental Health and Wellbeing

OBJECTIVE

To identify the proportion of children and adolescents in Australia and the proportion of those with mental disorders who used services for emotional and behavioural problems, the type of services used and what characteristics were associated with service use.

METHOD

During 2013-2014, a national face-to-face household survey of mental health and wellbeing (Young Minds Matter) was conducted, involving 6310 parents and carers of 4- to 17-year-olds (55% of eligible households) and self-report surveys from 2967 11- to 17-year-olds in these households (89% of eligible youth). The survey identified 12-month mental disorders based on the Diagnostic Interview Schedule for Children-Version IV and asked about service use for emotional or behavioural problems in the previous 12 months.

RESULTS

Overall, 17.0% of all 4- to 17-year-olds used services for emotional or behavioural problems in the previous 12 months. Of those with mental disorders, 56.0% used services (48.9% of 4- to 11-year-olds; 65.1% of 12- to 17-year-olds). Service use was highest among 4- to 17-year-olds with major depressive disorder (79.6%) and lowest for those with attention-deficit/hyperactivity disorder (52.7%). Two-fifths (41.2%), 72.5% and 87.6% of those with mild, moderate and severe disorders used services. General practitioners, psychologists, paediatricians and counsellors/family therapists were the most commonly accessed health service providers. Two-fifths with mental disorders had attended school services. About 5% of adolescents reported use of online personal support or counselling for help with their problems. From multivariate models, service use was higher in sole carer families, but also among those living in the least socially and economically disadvantaged compared to the most disadvantaged areas.

CONCLUSION

Rates of service use for mental disorders in Australia's children and adolescents appear to have increased substantially. Health services and schools are the major providers of services for emotional and behavioural problems, but telephone counselling and online services have become well-established parts of the service environment.

Key findings from the second Australian Child and Adolescent Survey of Mental Health and Wellbeing

OBJECTIVE

To estimate the prevalence of mental disorders in children and adolescents in Australia, and the severity and impact of those mental disorders.

METHOD

Seven mental disorders were assessed using the parent- or carer-completed version of the Diagnostic Interview Schedule for Children Version IV, and major depressive disorder was also assessed using the youth self-report version of the Diagnostic Interview Schedule for Children Version IV. Severity and impact were assessed using an extended version of the Diagnostic Interview Schedule for Children Version IV impact on functioning questions, and days absent from school due to symptoms of mental disorders. Data were collected in a national face-to-face survey of 6310 parents or carers of children and adolescents aged 4-17 years, with 2969 young people aged 11-17 years also completing a self-report questionnaire.

RESULTS

Twelve-month prevalence of mental disorders was 13.9%, with 2.1% of children and adolescents having severe disorders, 3.5% having moderate disorders and 8.3% having mild disorders. The most common class of disorders was attention-deficit/hyperactivity disorder followed by anxiety disorders. Mental disorders were more common in step-, blended- or one-parent families, in families living in rented accommodation and families where one or both carers were not in employment. Mental disorders were associated with a substantial number of days absent from school particularly in adolescents.

CONCLUSION

Mental disorders are common in children and adolescents, often have significant impact and are associated with substantial absences from school. Child and adolescent mental disorders remain an important public health problem in Australia. Accurate information about prevalence and severity of child and adolescent mental disorders is an essential prerequisite for effective mental health policy and service planning.

Suicidal behaviours: Prevalence estimates from the second Australian Child and Adolescent Survey of Mental Health and Wellbeing

OBJECTIVE

To (1) estimate the lifetime and 12-month prevalence of suicidal behaviours in Australian young people aged 12-17 years, (2) describe their co-morbidity with mental illness and (3) describe the co-variation of these estimates with social and demographic variables.

METHOD

A national random sample of children aged 4-17 years was recruited in 2013-2014. The response rate to the survey was 55% with 6310 parents and carers of eligible households participating. In addition, of the 2967 young people aged 11-17 years in these households, 89% (2653) of the 12- to 17-year-olds completed a self-report questionnaire that included questions about suicidal behaviour.

RESULTS

In any 12-month period, about 2.4% or 41,400 young people would have made a suicide attempt. About 7.5% of 12- to 17-year-olds report having suicidal ideation, 5.2% making a plan and less than 1% (0.6%) receiving medical treatment for an attempt. The presence of a mental disorder shows the largest significant association with lifetime and 12-month suicidal behaviour, along with age, gender, sole parent family status and poor family functioning. Of young people with a major depressive disorder, 19.7% reported making a suicide attempt within the previous 12 months. There are also significant elevations in the proportions of young people reporting suicidal behaviour who have anxiety and conduct disorders.

CONCLUSION

Mental disorders should be a leading intervention point for suicide prevention both in the primary health sector and in the mental health sector specifically. The associations examined here also suggest that efforts to assist sole parent and/or dysfunctional families would be worthy areas in which to target these efforts.

Effects of Acculturation and Psychopathology on Sexual Behavior and Substance Use of Suicidal Hispanic Adolescents

Two theoretical constructs of acculturation (high vs. low and biculturalism) were compared across adolescent risk behaviors among a seldom-studied group of Hispanic adolescents, 70% of whom were from the Dominican Republic. The sample consisted of 116 consecutively referred suicidal adolescentfemales who were assessed on diagnostic, acculturative, and risk behavior instruments. Hierarchical regressions were carried out separately for sexual behavior and substance use. Biculturalism (OR = 1.18, p < .01) and substance use (OR = 1.47, p <.01) were uniquely associated with sexual intercourse. High acculturation (R2 = .37, p <.001) and psychopathology as a block (R2 = .12, p <.01) were associated with greater use of substances (cigarettes, alcohol, and marijuana). Results suggest that acculturative status is an important indicator of high-risk activity and may vary across behavioral contexts. This is the first known report of an association between biculturalism and sexual behavior in Hispanic adolescent girls.

Internet use and electronic gaming by children and adolescents with emotional and behavioural problems in Australia - results from the second Child and Adolescent Survey of Mental Health and Wellbeing

BACKGROUND

Concerns have been raised of a potential connection between excessive online activity outside the academic realm and increased levels of psychological distress in young people. Young Minds Matter: the second Australian Child and Adolescent Survey of Mental Health and Wellbeing provides estimates of the prevalence of online activity and allows an exploration of associations between this activity, a range of mental disorders, socio-demographic characteristics and risk taking behaviour.

METHODS

Based on a randomized nationally representative sample, a household survey of mental health and wellbeing (Young Minds Matter) was conducted in 2013-14. Interviews were conducted with 6,310 parents and carers of 4-17 year-olds (55 % response rate), together with self-report questionnaires completed by 2,967 11-17 year-olds in these households (89 % response rate). The survey identified a range of mental disorders and emotional problems using a variety of diagnostic tools, with the self-report including questions about use of the Internet and electronic games. Five behaviours were measured related to this activity, with 'problem behaviour' being defined as exhibiting at least four out of five behaviours.

RESULTS

Levels of Internet use (98.9 %, CI 98.5-99.3 %) and electronic gaming (85.3 %, CI 83.9-86.6 %) were high, and 3.9 % (CI 3.2-4.6 %) of young people reported problem behaviour. The proportion of girls with very high levels of psychological distress and problem behaviour (41.8 %,CI 28.8-54.9 %) was twice that for boys (19.4 %, CI 7.7-31.1 %). Those engaging with a range of risk factors reported higher prevalence of problem behaviour than others. Youth who suffered from emotional problems or high levels of psychological distress spent the most time online or playing games. Multivariate analysis showed associations with problem behaviour and having attempted suicide, experiencing high to very high levels of psychological distress, using alcohol, and living in a poorly functioning family. It was not possible to determine the direction of the associations.

CONCLUSION

There are links between problem behaviours associated with Internet use and electronic gaming, and mental disorders and risk-taking behaviour in young people. Further studies are required to determine whether these are precursors or sequelae.

Developmental pathways from child maltreatment to adolescent marijuana dependence: Examining moderation by FK506 binding protein 5 gene (FKBP5)

The current study examined the prospective association between child maltreatment and the development of substance use disorder in adolescence with the aim of investigating pathways underlying this relation, as well as genetic moderation of these developmental mechanisms. Specifically, we tested whether youth who experienced maltreatment prior to age 8 were at risk for the development of marijuana dependence in adolescence by way of a childhood externalizing pathway and a childhood internalizing pathway. Moreover, we tested whether variation in FK506 binding protein 5 gene (FKBP5) CATT haplotype moderated these pathways. The participants were 326 children (n =179 maltreated; n = 147 nonmaltreated) assessed across two waves of data collection (childhood: ages 7-9 and adolescence: ages 15-18). Results indicated that higher levels of child externalizing symptoms significantly mediated the effect of child maltreatment on adolescent marijuana dependence symptoms for individuals with one or two copies of the FKBP5 CATT haplotype only. We did not find support for an internalizing pathway from child maltreatment to adolescent marijuana dependence, nor did we find evidence of moderation of the internalizing pathway by FKBP5 haplotype variation. Findings extend previous research by demonstrating that whether a maltreated child will traverse an externalizing pathway toward substance use disorder in adolescence is dependent on FKBP5 genetic variation.

Neighborhood Disadvantage and Adolescent Substance Use Disorder: The Moderating Role of Maltreatment

The ecological-transactional model proposes that nested contexts interact to influence development. From this perspective, child maltreatment represents an individual-level risk factor posited to interact with numerous other nested contextual levels, such as the neighborhood environment, to affect development. The aim of this study was to investigate whether adolescents with maltreatment histories represent a vulnerable group for whom disadvantaged neighborhoods confer risk for substance use disorders. Participants were 411 adolescents (age 15-18; mean age = 16.24) from an investigation of the developmental sequelae of childhood maltreatment. Multiple-group structural equation models, controlling for family-level socioeconomic status, indicated that neighborhood disadvantage was associated with more marijuana-dependence symptoms among maltreated but not among non-maltreated adolescents. Moreover, among maltreated adolescents, those who experienced multiple subtypes of maltreatment were at greatest risk for problematic marijuana use in the context of neighborhood disadvantage. Interestingly, the direct effect of neighborhood disadvantage, but not the interaction with maltreatment, was related to adolescent alcohol-dependence symptoms. Results highlight the importance of considering multiple levels of influence when examining risk associated with child maltreatment.

The prevalence of mental illness in homeless children: a systematic review and meta-analysis

OBJECTIVE

The numbers of children experiencing homelessness have increased. To develop responsive interventions, we must understand their mental health/behavioral needs. The purpose of this systematic review was to update the evidence base by identifying, appraising, and summarizing studies on the prevalence of mental health issues among homeless children, comparing these individuals to low-income-housed children, and discussing research, practice, and policy implications.

METHOD

We searched 3 electronic databases and included empirical studies investigating the prevalence of mental illness in homeless children in the United States (1990-2014). Retrieved publications were screened, data extracted, and study quality appraised by independent reviewers. Evidence synthesis was based on qualitative and quantitative analyses. Prevalence odds ratios (OR) of individual studies were pooled using an inverse-variance random effects model.

RESULTS

Twelve studies were included and reviewed. Overall, 10% to 26% of homeless preschoolers had mental health problems requiring clinical evaluation. This proportion increased to 24% to 40% among homeless school-age children, a rate 2 to 4 times higher than poor children aged 6 to 11 years in the National Survey of America's Families. According to our meta-analyses, the difference in prevalence measured by Child Behavior Checklist (CBCL) Total Problems (T score ≥60-64) was not significantly different between homeless and housed preschool children (OR = 1.49; 95% CI = 0.97-2.28). School-age homeless children compared to housed children were significantly more likely to have a mental health problem as defined by the CBCL Total Problems subscale (T score ≥60; OR = 1.78; 95% CI = 1.19-2.66).

CONCLUSION

Evidence-based mental health interventions for children experiencing homelessness are long overdue. Universal screening, treatment plan development, and support of adaptive systems that focus on positive parenting and children's self-regulation are essential.

Loss Due to Death and its Association with Mental Disorders in Juvenile Detainees

This study investigated the prevalence of loss due to death and its association with mental disorders in a random sample of 898 newly detained adolescents in Chicago, Illinois. Nearly 90% of youth experienced the loss of an important person; most had also experienced a "high-risk" loss (e.g., loss due to violence, sudden loss). Minority youth were at particular risk. Youth with any loss or multiple losses were more likely to have mood disorders and ADHD/behavioral disorders, respectively, than youth who had no such losses. Interventions focusing on modifiable protective factors following loss may increase positive outcomes in this vulnerable population.

Firearm homicide and other causes of death in delinquents: a 16-year prospective study

BACKGROUND

Delinquent youth are at risk for early violent death after release from detention. However, few studies have examined risk factors for mortality. Previous investigations studied only serious offenders (a fraction of the juvenile justice population) and provided little data on females.

METHODS

The Northwestern Juvenile Project is a prospective longitudinal study of health needs and outcomes of a stratified random sample of 1829 youth (657 females, 1172 males; 524 Hispanic, 1005 African American, 296 non-Hispanic white, 4 other race/ethnicity) detained between 1995 and 1998. Data on risk factors were drawn from interviews; death records were obtained up to 16 years after detention. We compared all-cause mortality rates and causes of death with those of the general population. Survival analyses were used to examine risk factors for mortality after youth leave detention.

RESULTS

Delinquent youth have higher mortality rates than the general population to age 29 years (P < .05), irrespective of gender or race/ethnicity. Females died at nearly 5 times the general population rate (P < .05); Hispanic males and females died at 5 and 9 times the general population rates, respectively (P < .05). Compared with the general population, significantly more delinquent youth died of homicide and its subcategory, homicide by firearm (P < .05). Among delinquent youth, racial/ethnic minorities were at increased risk of homicide compared with non-Hispanic whites (P < .05). Significant risk factors for external-cause mortality and homicide included drug dealing (up to 9 years later), alcohol use disorder, and gang membership (up to a decade later).

CONCLUSIONS

Delinquent youth are an identifiable target population to reduce disparities in early violent death.

Utility of the diagnostic interview schedule for children for assessing Tourette syndrome in children

OBJECTIVE

The Diagnostic Interview Schedule for Children IV (DISC) has been used extensively in research and screening. Despite wide use, little information exists on the validity of the DISC for diagnosing tic disorders.

METHODS

Participants were 181 youth with expert clinician-diagnosed Tourette syndrome (TS).

RESULTS

Using expert clinician-diagnosed TS as the gold standard, the sensitivity of the DISC-Y (youth, 0.27) and DISC-P (parent, 0.44) was poor. The DISC-Y identified 29.7% of youth with diagnosed TS whereas the DISC-P identified 47.4% of cases. Only 54% of cases of TS were detected by either the DISC-Y or -P. Diagnostic agreement between the DISC and expert clinician diagnosis was poor. The DISC-Y/P results did not differ as a function of tic severity.

CONCLUSIONS

Despite utility for assessing child psychiatric disorders, the sensitivity of the DISC for detecting TS appears poor. This study suggests that DISC has low agreement with expert clinician diagnosis of TS. Findings highlight the need for modification of the DISC and/or the identification and development of more sensitive measures for TS screening.

Depressed suicidal adolescent males have an altered cortisol response to a pharmacological challenge

Dysregulation of the HPA axis and the dysfunction of the central serotonin (5HT) system are the most replicated biomarkers of depression and suicidal ideation and behavior. However, few studies have examined the two systems simultaneously. In this study, cortisol response was measured in depressed adolescents, following the administration of a central serotonin receptor agonist, meta-chlorphenylpiprazine (mCPP). Adolescents with major depression (MDD; n = 44; males = 15, females = 29; mean age ± SD = 15.5 ± 1.5) were divided into two groups: non-suicidal or those who reported passive suicidal ideation (n = 21), and those who had either threatened suicide or engaged in suicidal acts (n = 23). Sequential infusions of normal saline and mCPP were administered, and serial blood samples were collected for cortisol response. A differential time by group pattern of cortisol response following mCPP was found in the entire group (F(6,242) = 2.6, p=0.018). However, this was mostly attributed to males (F(6,73) = 2.3, p = 0.043) who had threatened or engaged in suicidal acts and displayed a higher cortisol response at 10 and 25 min after the infusion of mCPP, which was not affected by the severity of depression. This differential pattern of cortisol secretion in response to a serotonergic agonist may be a biomarker for more severe forms of suicidal ideation and behavior in adolescent males.

Longitudinal impact of substance use and depressive symptoms on bone accrual among girls aged 11-19 years

PURPOSE

Osteoporosis is primarily evident in postmenopausal women, but its roots are traceable to periods of growth, including during adolescence. Depression, anxiety, and smoking are associated with lower bone mineral density (BMD) in adults. These associations have not been studied longitudinally across adolescence, when more than 50% of bone accrual occurs.

METHODS

To determine the impact of depressive and anxiety symptoms, smoking, and alcohol use on bone accrual in girls 11-19 years, 262 healthy girls were enrolled in age cohorts of 11, 13, 15, and 17 years. Using a cross-sequential design, girls were seen for three annual visits. Outcome measures included total body bone mineral content and BMD of the total hip and lumbar spine using dual energy x-ray absorptiometry. Depressive and anxiety symptoms and smoking and alcohol use were by self-report.

RESULTS

Higher-frequency smoking was associated with a lower rate of lumbar spine and total hip BMD accrual from ages 13-19. Higher depressive symptoms were associated with lower lumbar spine BMD across 11-19 years of age. There was no effect of depressive symptoms on total body bone mineral content, and there was no effect of alcohol intake on any bone outcome.

CONCLUSION

Adolescent smokers are at higher risk for less than optimal bone accrual. Even in the absence of diagnosable depression, depressive symptoms may influence adolescent bone accrual. These findings have import for prevention of later osteoporosis and fractures.

The psychometric properties of the Vanderbilt attention-deficit hyperactivity disorder diagnostic teacher rating scale in a community population

OBJECTIVE

This study examined the psychometric properties of the Vanderbilt AD/HD Diagnostic Teacher Rating Scale (VADTRS).

METHODS

Information was collected from teachers and parents in 5 school districts (urban, suburban, and rural). All teachers in participating schools were asked to complete the VADTRS on all their students. Construct validity was evaluated through an exploratory factor analysis investigation of the 35 items that made up the 4 scales of inattention, hyperactivity, conduct/oppositional problems, and anxiety/depression problems. Convergent validity was assessed among a subsample of participants whose teachers completed the Strengths and Difficulties Questionnaire (SDQ). Finally, predictive validity was examined for another subsample of high- and low-risk children whose parents completed a structured psychiatric interview, the Diagnostic Interview Schedule for Children-IV.

RESULTS

For construct validity, a 4-factor model (inattention, hyperactivity, conduct/oppositional, and anxiety/depression problems) fits the data well. The estimates of the KR20 coefficient for a binary item version of the scale ranged from .85 to .94. Convergent validity with the SDQ was high (Pearson's correlations > .72) for these 4 factors. For predictive validity, the VADTRS produced a sensitivity of .69, specificity of .84, positive predictive value of .32, and negative predictive value of .96 when predicting future case definitions among children whose parents completed a diagnostic interview.

CONCLUSION

The confirmation of the construct and convergent validity and acceptable scale reliabilities found in this study further supports the utility of the VADTRS as a diagnostic rating scale for attention-deficit hyperactivity disorder. The low predictive validity further demonstrates the need for multiple observers in establishing the diagnosis.

The psychometric properties of the Vanderbilt attention-deficit hyperactivity disorder diagnostic parent rating scale in a community population

OBJECTIVE

To examine the psychometric properties of the Vanderbilt ADHD Diagnostic Parent Rating Scale (VADPRS) using a community-based sample of primarily elementary and middle school-aged children.

METHOD

Participants were initially recruited from 41 elementary schools in 5 Oklahoma school districts including urban, suburban, and rural students. Vanderbilt rating scales were obtained from all teachers (n = 601) and sampled parents (n = 587) of the participating children. Construct validity was assessed by confirmatory factor analysis of the 45 items that made up the 4 scales of inattention, hyperactivity, conduct/oppositional problems, and anxiety/depression problems. Reliability was evaluated from internal consistency, test-retest, and interrater agreement perspectives. Criterion validity was evaluated via comparisons to a structured psychiatric interview with the parents using the Diagnostic Interview Schedule for Children-IV.

RESULTS

A 4-factor model (inattention, hyperactivity, conduct/oppositional problems, and anxiety/depression problems) fit the data well once discarding conduct items that were infrequently endorsed. The estimates of coefficient alpha ranged from .91 to .94 and the analogous KR20 coefficient for a binary item version of the scale ranged from .88 to .91. Test-retest reliability exceeded .80 for all summed scale scores. The VADPRS produced a sensitivity of .80, specificity of .75, positive predictive value of .19, and negative predictive value of .98 when predicting an attention-deficit hyperactivity disorder (ADHD) case definition that combined teacher's Vanderbilt ADHD Diagnostic Teacher Rating Scale and parent diagnostic interview responses.

CONCLUSION

The confirmation of the construct and concurrent criterion validities found in this study further support the utility of the VADPRS as a diagnostic rating scale for ADHD.