Icelandic translation and reliability data on the DSM-5 version of the schedule for affective disorders and schizophrenia for school-aged children - present and lifetime version (K-SADS-PL)

Evaluating the Interrater Reliability of the Icelandic Version of K-SADS-PL DSM-5

The Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime version (K-SADS-PL) is a valuable tool for diagnosing mental disorders in children and adolescents. Previous studies have examined its interrater reliability, but there is limited information on individual disorders, on the updated DSM-5 version. This study aims to analyse the interrater reliability of the Icelandic translation of K-SADS-PL, DSM-5 version. K-SADS-PL was administered to a clinical sample of outpatients from the Icelandic Anxiety Centre for Children, Adolescents, and Young Adults, and The Department of Child and Adolescent Psychiatry at Landspítali, the National University Hospital in Reykjavík, Iceland. In total, 135 patients aged 6-18 were included in this study. We assessed the interrater reliability using Cohen's κ, with results ranging from poor to excellent (0.3-1.0), though most disorders showed excellent reliability (κ > 0.75). The Icelandic translation of the DSM-5 K-SADS-PL is generally reliable when used by properly trained post-graduate students, which supports its use in clinical settings.

Psychometrics of the kiddie schedule for affective disorders and schizophrenia present and lifetime version for DSM-5 in Japanese outpatients

OBJECTIVE

The Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime version (K-SADS-PL) is a widely used semi-structured diagnostic interview in child and adolescent psychiatry. However, the psychometric properties of its updated version, the K-SADS-PL for DSM-5, have scarcely been examined, especially for criterion validity. This study was designed to examine the inter-rater reliability, criterion validity and construct validity of the K-SADS-PL for DSM-5 in 137 Japanese outpatients.

METHODS

Two of 12 experienced clinicians independently performed the K-SADS interview for each patient in a conjoint session, and the resulting consensus diagnosis was compared with a "best-estimate" diagnosis made by two of eight experienced clinicians using all available information for the patient.

RESULTS

The inter-rater reliability was excellent, as shown by κ > 0.75 for all disorders, with the exception of current separation anxiety disorder. The criterion validity was fair to good, as shown by κ > 0.40 for all disorders, with the exception of current and lifetime agoraphobia. The construct validity was also good, as shown by theoretically expected associations between the K-SADS-PL diagnoses and subscales of the child behavior checklist.

CONCLUSION

The K-SADS-PL for DSM-5, now available in Japanese, generates valid diagnoses in child and adolescent psychiatry.

The DIAMOND-KID: Psychometric Properties of a Structured Diagnostic Interview for DSM-5 Anxiety, Mood, and Obsessive-Compulsive and Related Disorders in Children and Adolescents

The objective of the present study was to examine the reliability and validity of a new semi-structured interview for pediatric psychiatric disorders, which is needed as existing interviews do not cover the full range of anxiety, mood, and obsessive-compulsive disorder (OCD)-related disorders. Three hundred eleven child patients (aged 10-17) were administered the Diagnostic Interview for Anxiety, Mood, and OCD and Related Neuropsychiatric Disorders-Child and Adolescent Version (DIAMOND-KID). Of these, 65 provided interrater reliability data and 59 provided test-retest reliability data. Participants also completed self-report measures that assessed symptoms of anxiety, mood, and OCD and related disorders. Although parents/guardians could participate in the interview at the clinician's discretion, most of the initial interviews and all of the reliability interviews were based on the child's self-report. Test-retest reliability ranged from very good to excellent. Interrater reliability was more variable, with estimates for generalized anxiety disorder and major depressive disorder in the questionable range; the other interrater reliability estimates ranged from good to very good. Convergent validity was established by significant between-group comparisons on applicable self-report measures for all diagnoses. The results of the present study indicate that the DIAMOND-KID is a promising semi-structured diagnostic interview for 5th edition of the Diagnostic and Statistical Manual of Mental Disorders in pediatric populations.

Navigating young minds: reliability and validity of the Greek version of kiddie - schedule for affective disorders and schizophrenia - present and lifetime DSM-5 version (K-SADS-PL-GR-5)

BACKGROUND

The Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime Version (K-SADS-PL) is one of the most popular semi-structured psychiatric interviews for children and adolescents. Its latest DSM-5 version (K-SADS-PL DSM-5) has only recently been adapted and validated in various languages. In the present study, we aimed to investigate the reliability and validity of the Greek version of the K-SADS-PL DSM-5.

METHODS

A total of 137 patients consecutively referred for admission, aged 7-17, were included. The K-SADS-PL DSM-IV was translated and adapted to correspond to DSM-5 categories. Convergent and divergent validity were assessed against two self-report rating scales, Children's Depression Inventory (CDI) and Screen for Child Anxiety Related Emotional Disorders (SCARED). Inter-rater reliability was calculated exclusively for instances where a diagnosis involved three or more patients.

RESULTS

Our findings revealed good to excellent inter-rater reliability and good to excellent consensual validity across most psychiatric diagnoses, except for panic disorder. Diagnostic efficiency, measured by sensitivity, specificity, positive and negative predictive values, consistently showed high specificity and negative predictive validity across all diagnostic categories.

CONCLUSIONS

These findings support the applicability of the Greek version of the K-SADS-PL DSM-5 as a reliable and valid diagnostic tool in Greek-speaking populations.

The Feasibility and Efficacy of a Group-Based, Brief Transdiagnostic Cognitive-Behavioral Treatment for Adolescents with Internalizing Problems

The present study aimed to assess the efficacy of a group-based, brief transdiagnostic cognitive-behavioral therapy (CBT) program for adolescents with internalizing problems, such as anxiety and depressive disorders, seeking help in a primary health care clinic in Iceland. The group-based CBT program consisted of eight weekly 110-min sessions covering psychoeducation, cognitive restructuring, behavioral activation, exposure, problem-solving, social skills, and mindfulness. The study recruited 53 participants, who were randomly assigned to either receive the group treatment or be placed on a wait-list for monitoring purposes. Measures were taken at baseline, during treatment (week 4), at posttreatment (week 8), and at 2-, 4-month, and 1-year follow-ups. The primary outcome measures were the self-reported total scores of total anxiety and depression using the Revised Children's Anxiety and Depression Scale (RCADS). The study found a significant effect of time and time * treatment interaction on the depression and anxiety total scores. The secondary outcome measures, RCADS parent-rated depression and anxiety total scores, did not show significant effects of time * treatment interaction. However, during naturalistic follow-up, a significant reduction in parent-reported depression and anxiety total scores was observed. The study also observed good treatment adherence, as well as high satisfaction among parents and youth. The results suggest that this group-based, brief transdiagnostic CBT group treatment is feasible and effective in reducing depressive and anxiety symptoms in adolescents with internalizing problems and highlights the importance of addressing comorbidity in treatment.

Reliability and Validity of the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version (K-SADS-PL): Portuguese Version

This study examined the test-retest reliability, consensual, convergent and divergent validities, sensitivity, specificity, positive and negative predictive values, and accuracy of the Portuguese version of the Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime version (K-SADS-PL). Eighty-nine children/adolescents (65 psychiatric outpatients and 24 healthy controls) were interviewed with K-SADS-PL and completed measures of depressive and anxiety symptoms. The child's parent/caretaker completed the Child Behavior Checklist. Good to excellent values were obtained for test-retest reliability and consensual validity. For the convergent validity, moderate correlations between the K-SADS-PL and the corresponding self-report measures were observed. Divergent validity was acceptable for the K-SADS-PL diagnoses. The lowest values of sensitivity, specificity, and accuracy of the K-SADS-PL were 88, 88, and 91, respectively. The Portuguese version of K-SADS-PL proved to be a valid and reliable assessment instrument for children and adolescents, and was sensitive, specific and accurate when diagnosing mood, anxiety, adjustment, and attention-deficit/hyperactivity disorders.

Reliability and validity of the Chinese version of the kiddie-schedule for affective disorders and schizophrenia-present and lifetime version DSM-5 (K-SADS-PL-C DSM-5)

BACKGROUND

As the Diagnostic and Statistical Manual of Mental Disorders fifth version (DSM-5) was published, the Kiddie-Schedule for Affective Disorders and Schizophrenia-Present and Lifetime version (K-SADS-PL) was modified to adapt the new version (K-SADS-PL DSM-5). We translated it to Chinese (K-SADS-PL-C DSM-5) and described its reliability and validity.

METHODS

A total of 154 groups of 6 to 18-year-old children and their guardians were included. Trained interviewers interviewed subjects using the K-SADS-PL-C DSM-5. Interrater reliability was assessed by audio recording. Parent-reported scales, like child behavior checklist (CBCL), the Chinese version of Swan-son Nolan and Pelham, version IV scale-parent form (SNAP-IV), social responsiveness scale (SRS-1), and children-reported scales like depression self-rating scale for children (DSRSC) and the screen for child anxiety related emotional disorders (SCARED) were used to examine the validity of depressive disorder, ADHD, ASD, and ODD.

RESULTS

The K-SADS-PL-C DSM-5 had fair to excellent interrater (0.537-1.000) and test-retest (0.468-0.885) reliability of affective disorder and neurodevelopment disorder. The convergent validity of affective disorder and neurodevelopment disorder was good, and their divergent validity was acceptable.

LIMITATIONS

i) Clinical questionnaires were insensitive in classifying disorders and had limitations in derived diagnoses. ii) Samples only came from clinical environment, iii) covered limited disease species, and iv) were small.

CONCLUSION

The K-SADS-PL-C DSM-5 can support reliable and valid diagnoses for children with affect, neurodevelopmental, and behavioral disorders in China.

Meals, Microbiota and Mental Health in Children and Adolescents (MMM-Study): A protocol for an observational longitudinal case-control study

Recent studies indicate that the interplay between diet, intestinal microbiota composition, and intestinal permeability can impact mental health. More than 10% of children and adolescents in Iceland suffer from mental disorders, and rates of psychotropics use are very high. The aim of this novel observational longitudinal case-control study, "Meals, Microbiota and Mental Health in Children and Adolescents (MMM-Study)" is to contribute to the promotion of treatment options for children and adolescents diagnosed with mental disorders through identification of patterns that may affect the symptoms. All children and adolescents, 5-15 years referred to the outpatient clinic of the Child and Adolescent Psychiatry Department at The National University Hospital in Reykjavik, Iceland, for one year (n≈150) will be invited to participate. There are two control groups, i.e., sex-matched children from the same postal area (n≈150) and same parent siblings (full siblings) in the same household close in age +/- 3 years (n<150). A three-day food diary, rating scales for mental health, and multiple questionnaires will be completed. Biosamples (fecal-, urine-, saliva-, blood samples, and buccal swab) will be collected and used for 16S rRNA gene amplicon sequencing of the oral and gut microbiome, measurements of serum factors, quantification of urine metabolites and host genotype, respectively. For longitudinal follow-up, data collection will be repeated after three years in the same groups. Integrative analysis of diet, gut microbiota, intestinal permeability, serum metabolites, and mental health will be conducted applying bioinformatics and systems biology approaches. Extensive population-based data of this quality has not been collected before, with collection repeated in three years' time, contributing to the high scientific value. The MMM-study follows the "Strengthening the Reporting of Observational Studies in Epidemiology" (STROBE) guidelines. Approval has been obtained from the Icelandic National Bioethics Committee, and the study is registered with Clinicaltrials.gov. The study will contribute to an improved understanding of the links between diet, gut microbiota and mental health in children through good quality study design by collecting information on multiple components, and a longitudinal approach. Furthermore, the study creates knowledge on possibilities for targeted and more personalized dietary and lifestyle interventions in subgroups. Trial registration numbers: VSN-19-225 & NCT04330703.

Parent-youth agreement on psychiatric diagnoses and symptoms: results from an adolescent outpatient clinical sample

OBJECTIVE

Previous research suggests that agreement, between youths and their parents, regarding assessment of youth psychiatric problems is limited. Due to this discrepancy, a multi-informant, multimethod approach is recommended when gathering psychopathological information. This study examines parent-youth agreement regarding youth psychiatric problems. It does so at a diagnostic level and at a symptom level, as well as studying the influence of age, gender, depressive disorder, anxiety disorder and attention-deficit/hyperactivity disorder (ADHD) as potential moderators of agreement.

METHODS

The participants in this study were 61 adolescents aged 12-18 years and their parents. The K-SADS-PL DSM-5 was administered in two outpatient units, with adolescents and their parents interviewed separately. Participants also rated symptoms using a broad rating scale (Child Behavior Checklist and the Youth Self-Report) prior to being interviewed.

RESULTS

Parent-youth agreement at a diagnostic level ranged from fair to excellent. Agreement at a symptom level was lower than that at a diagnostic level, ranging from poor to fair. These results indicate that parent-youth agreement regarding diagnosis and symptoms is higher than in most previous studies. The results also suggest that some variables, such as age, gender, depressive disorders, and ADHD, potentially influence agreement on symptoms.

CONCLUSION

These findings support the importance of gathering information from both children and parents, and that clinicians should consider moderating factors when integrating data from multiple informants.

"Less stress": a pilot study on a cognitive behavioral treatment program for anxiety in children with autism spectrum disorders

Background:

Comorbid anxiety disorders are prevalent in children with autism spectrum disorders (ASD), but only a minority receives adequate treatment for anxiety. Cognitive behavioral therapy (CBT) has been shown to be effective in treating anxiety disorders. The objectives of the present pilot study were to test the feasibility of the CBT program “Less stress” for comorbid anxiety disorders in children with ASD and explore whether an improvement in diagnostic outcomes for anxiety disorders and symptoms of anxiety was found after treatment.

Methods:

Participants were ten children diagnosed with ASD and anxiety disorders (eight boys, mean age = 9.5 years, range 8 - 12 years). The “Less Stress” program includes three months of weekly treatment sessions followed by three monthly booster sessions. Five therapists participated. A standardized semi-structured diagnostic interview with the mothers was used to assess comorbid disorders. Child anxiety symptoms were measured with the Revised Child Anxiety and Depression Scale (RCADS).

Results:

The therapists found the manual easy to use but adaptations were necessary, particularly shorter sessions due to frequent (n = 7) comorbid Attention-Deficit/Hyperactivity Disorder. The participants found the program useful and the parents noted that they had learned methods they could continue using after the end of the program.

Eight of ten children completed the treatment. Seven of the eight completers benefited from the program. Five of those seven children were free from all anxiety disorders, while two had fewer anxiety disorders. On a group level, a significant mean reduction of anxiety symptoms (RCADS) was found after treatment.

Conclusion:

The therapists found the “Less stress” program to be a feasible intervention in a sample of children with ASD and comorbid anxiety. The significant reduction of anxiety after treatment is promising, but a replication in a larger and more rigorous study is needed to investigate the effectiveness of the intervention.