Use of the extended Strengths and Difficulties Questionnaire (SDQ) to predict psychiatric caseness in Hong Kong.

The extended Strengths and Difficulties Questionnaire (SDQ) provides information on problem behaviours and impairment measures. Western studies found impairment measures to be as good as symptom scores in predicting clinical caseness. The high levels of comorbidities among child psychiatric disorders also meant that disorders not specifically captured by the questionnaire could be identified. This study examines its applicability among Chinese school children in Hong Kong. Results found that impairment measures were more predictive of clinical status than were symptom scores. Children with low symptom but high impairment ratings had profiles that were intermediate between the low symptom low impairment and high symptom low impairment groups. The extended SDQ is useful in identifying children who might otherwise be missed if symptom scores alone were used in screening. The acceptance of child psychiatric care in Hong Kong is a multi-step process that depends on how symptoms are perceived.

Validation of the Chinese version of the strengths and difficulties questionnaire in Hong Kong.

BACKGROUND: The strengths and difficulties questionnaire (SDQ) is now one of the most commonly used instruments for screening child psychiatric morbidities. Psychometric studies in the West affirm its reliability and validity, but similar studies are scarce among non-Western populations. This is an important gap because cultural differences can influence how children's behaviours are perceived and rated. This study explores the psychometric properties of the Chinese version of the SDQ among children in Hong Kong. METHOD: The SDQ was translated into Chinese. A community sample of 3,722 students between 6 and 12 years were recruited by stratified random sampling from across the whole of Hong Kong. Comparison group consisted of 494 consecutive children attending a general child psychiatric clinic. SDQ and basic socio-demographic data were collected from parents and teachers. Reliability was determined by internal consistency and test-retest stability. Validity was assessed by the questionnaire's ability to discriminate between community and clinic samples, and ROC curves. Cutoff scores and their sensitivity, specificity, positive predictive value and negative predictive value were calculated. RESULTS: Our results confirm the questionnaire's reliability and validity. The total difficulties scale and hyperactivity subscale are potentially the most useful in discriminating between community and clinic children. The emotional subscale was relatively weaker, especially with respect to teachers' ratings. Of note also is that our normative scores are significantly higher than those reported in the West, highlighting once again the importance of examining a questionnaire's cultural applicability. CONCLUSION: Our data support the use of the Chinese version of the SDQ, especially the total difficulties scale, as a screening instrument for psychiatric morbidities among children in Hong Kong.

Quality of life in parents of children with attention-deficit-hyperactivity disorder in Hong Kong.

OBJECTIVE: There is no study on the quality of life (QOL) of parents of children with attention-deficit-hyperactivity disorder (ADHD), although QOL is increasingly gaining more attention and the interactions between children and their parents are bi-directional. The aim of the present study was therefore to survey the QOL of parents of children with ADHD in Hong Kong, and explore the relationships of sociodemographic and clinical variables with QOL. METHOD: Seventy-seven parents of children with ADHD were consecutively selected and the sociodemographic and clinical characteristics of the parents and their children were assessed. RESULTS: Compared with the general population in Hong Kong, significantly lower scores in physical, psychological, social and environmental QOL domains were found in the parents of children with ADHD. On multivariate analysis, for the children with ADHD, the severity of emotional and hyperactivity/inattention symptoms, and having a comorbid pervasive developmental disorder were significantly correlated with one or more domains of QOL; while for the parents, educational level, household monthly income and having major medical conditions were significantly correlated with one or more domains of QOL. CONCLUSIONS: Parents of children with ADHD have low QOL and research is needed to understand the underlying problems.

Prevalence of Anxiety Disorders in Hong Kong Chinese Children With ADHD.

OBJECTIVE: This study examined the prevalence and correlates of anxiety disorders in Chinese children with ADHD. METHOD: Overall, 120 children with ADHD aged 6 to 12 years were recruited, and the parent version of computerized Diagnostic Interview Schedule for Children-Version 4 was administrated to their primary caretakers. RESULTS: The prevalence rate of anxiety disorders was 27.5%, which is consistent with the reports of previous Asian and Western studies. Among the children with ADHD and anxiety disorders, more than 50% of them also had comorbid oppositional defiant disorder or conduct disorder (ODD/CD), which yielded an adjusted odds ratio of 3.0 in multivariable analysis for anxiety disorder, with comorbid ODD/CD. In addition, anxiety disorders were positively associated with inattention symptoms in children with both disorders. CONCLUSION: Clinicians should perform screening and careful assessment for anxiety symptoms in children with ADHD, particularly those suffering from comorbid ODD/CD.

Validation of the Developmental, Dimensional and Diagnostic Interview (3Di) Among Chinese Children in a Child Psychiatry Clinic in Hong Kong.

Autism spectrum disorder (ASD) is a disorder with high levels of co-morbidities. The Developmental, Dimensional and Diagnostic Interview (3 Di) is a relatively new instrument designed to provide dimensional as well as categorical assessment of autistic behaviours among children with normal intelligence. Its sound psychometric properties and relatively short administration time make it a versatile instrument. The 3 Di was translated into Chinese (Cantonese) and its applicability among 194 clinic children was examined. Results found excellent reliability and validity, and achieved a sensitivity of 95% and specificity of 77%. It was able to capture the diagnosis of ASD among children presenting with attention deficit hyperactivity disorder. However, although the disorder of ASD is considered universal, the use of a western instrument in a Chinese context should also take note of cultural influences that may impact on the manifestation of its symptoms.

Early Onset Dysthymic Disorder in Children and Adolescents: Clinical Implications and Future Directions.

Early onset dysthymic disorder (EODD) is a serious psychiatric disorder that is associated with impaired social and relationship functioning, comorbid psychiatric conditions, a chronic course and increased risk for adult affective disorders. Unlike major depressive disorder (MDD) in childhood, which has been the focus of ongoing research, EODD has been relatively neglected in clinical practice and research. This paper reviews and evaluates EODD research findings and outlines pertinent clinical and research implications.

Validation of the Chinese strengths and weaknesses of ADHD-symptoms and normal-behaviors questionnaire in Hong Kong.

OBJECTIVE: Unlike rating scales that focus on the severity of ADHD symptoms, the Strengths and Weaknesses of ADHD-symptoms and normal-behaviors (SWAN) rating scale is phrased in neutral or positive terms for carers to compare the index child's behaviors with that of their peers. This study explores its psychometric properties when applied to Chinese children in Hong Kong. METHOD: Ratings from the Chinese SWAN scale collected from parents and teachers of a community sample of 3,722 6- to 12-year-old students recruited by stratified random sampling were compared with 247 clinic children with a diagnosis of ADHD. Reliability, validity, factor structure, and cutoff scores were calculated. RESULTS: Favorable psychometrics and a two-factor structure identical to the original were reproduced. Cutoff scores were supported by satisfactory sensitivities and specificities. CONCLUSION: The SWAN scale is a reliable and valid instrument for the assessment of ADHD symptoms in Chinese children in Hong Kong.

Prescribing of psychotropic medications for children by Australian pediatricians and child psychiatrists.

OBJECTIVE: To describe the pattern of prescribing of psychotropic medications for Australian children. DESIGN: Australia-wide cross-sectional postal survey conducted in 2000. PARTICIPANTS: All registered general pediatricians and child and adolescent psychiatrists. RESULTS: The survey was completed by 435 general pediatricians and 187 child and adolescent psychiatrists (response rates 72% and 70%, respectively). Stimulants and clonidine were the most frequently prescribed medications. Seventy-two percent of practitioners reported that they had prescribed a combination of medications. Frequent combinations included a stimulant and clonidine (64% of pediatricians, 51% of child psychiatrists) and a stimulant and a selective serotonin reuptake inhibitor (SSRI; 29% of pediatricians, 36% of child psychiatrists). Pediatricians were more likely than child psychiatrists to report prescribing clonidine for sleep problems (67% vs 36%). Child psychiatrists were more likely than pediatricians to report prescribing SSRIs (93% vs 75%) and mood stabilizers (45% vs 11%) for depression, and SSRIs (74% vs 50%) and tricyclic antidepressants (37% vs 12%) for obsessive compulsive disorder. Off-label prescribing (indication or age not included in the product information) was reported by 40%. Over 5% of practitioners in this study had prescribed clonidine, methylphenidate, dexamphetamine, and typical neuroleptics for children under 3 years of age. CONCLUSIONS: A broad range of psychotropic medications are being prescribed for Australian children, with some medication groups being prescribed frequently. Combinations of psychotropic medications are used regularly, and there is some prescribing for very young children. The safety and efficacy of several of the agents prescribed have not been adequately researched in children. There is an urgent need for pediatric psychopharmacology research to inform current prescribing practice.