Measurement Invariance of the WHODAS 2.0 Across Youth With and Without Physical or Mental Conditions

P factor in children with chronic physical illness

BACKGROUND

The p factor represents the overall liability for the development of mental illness. While evidence supporting the p factor in adults has been reported, studies in children are fewer, and none have examined the p factor in children with chronic physical illness (CPI).

OBJECTIVE

We aimed to model the p factor in a longitudinal sample of children with CPI using a parent-reported checklist and examine its construct validity against a structured diagnostic interview.

METHODS

We used data from 263 children aged 2-16 years diagnosed with a CPI who were enrolled in the Multimorbidity in Children and Youth across the Life-course (MY LIFE) study. The p factor was modelled using the Emotional Behavioural Scales over 24 months using confirmatory factor analysis. Validation of the p factor was set against the Mini International Neuropsychiatric Interview for Children and Adolescents.

RESULTS

Factorial evidence supported the p factor, modelled using a bi-factor structure, compared to a standard correlated-factors (i.e., two-factor) structure [Δχ2 = 9.66(4), p = 0.047]. p factor scores were correlated with the number of different mental illness diagnoses (r = 0.71) and total number of diagnoses (r = 0.72). Dose-response relationships were shown for the number of different diagnoses (p < 0.001) and total number of diagnoses (p < 0.001).

CONCLUSION

In this first study of the p factor in children with CPI, we showed evidence of its bi-factor structure and associations with mental illness diagnoses. Mental comorbidity in children with CPI is pervasive and warrants transdiagnostic approaches to integrated pediatric care.

Validating the Ontario Child Health Study Emotional Behavioural Scales-Brief Version (OCHS-EBS-B) in children with chronic physical illness

BACKGROUND

A substantial proportion of children have a physical illness; these children commonly experience physical-mental comorbidity. To assess child mental health, brief scales that can be used in clinical and research settings are needed. This study assessed the validity and reliability of parent-reported Ontario Child Health Study Emotional Behavioural Scale-Brief Version (OCHS-EBS-B) scores.

METHODS

Data come from a longitudinal study of children aged 2-16 years with a physical illness recruited from outpatient clinics at a pediatric hospital. Confirmatory factor analysis and McDonald's coefficient assessed the factor structure and internal consistency reliability of the OCHS-EBS-B, respectively. Point biserial correlations assessed agreement between the OCHS-EBS-B and Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID), a structured diagnostic interview. The Wilcoxon rank sum test compared OCHS-EBS-B scores between children with versus without physical-mental comorbidity (known-group validity).

RESULTS

The three-factor structure of the OCHS-EBS-B was replicated in this sample of children with physical illness (χ2 = 196.23(272), p < 0.001; CFI = 0.98; TLI = 0.98; SRMR = 0.06; RMSEA [90% CI] = 0.034 [0.027, 0.044]). It had excellent internal consistency reliability (ω = 0.86-0.92) and was moderately correlated with the MINI-KID (baseline: rpb = 0.43-0.51; 6 months: rpb = 0.55-0.65). OCHS-EBS-B scores were significantly higher among children with versus without physical-mental comorbidity.

CONCLUSIONS

Findings confirm psychometric evidence that the OCHS-EBS-B is a valid and reliable measure of mental health in children with chronic physical illness. Its brevity and robust psychometric properties make the OCHS-EBS-B a strong candidate for routine use in integrated pediatric physical and mental health services.

Impact of mental and developmental disorders on disability in Japanese university students: A cross-sectional study

OBJECTIVE

This study utilized the World Health Organization Disability Assessment Schedule version 2 (WHODAS 2.0) to identify vulnerable students and explore the impact of mental and developmental disorders on disability.

PARTICIPANTS

A total of 156 undergraduates who visited support service offices at large-scale universities in Japan between April 2018 and March 2020 were included.

METHODS

The 36-item WHODAS 2.0 was administered, and data were gathered regarding mental and developmental disabilities. Mann-Whitney and Kruskal-Wallis tests were conducted.

RESULTS

Parents/guardians typically initiated consultation with student support services. Students whose parents had initiated consultation did not have higher scores in any WHODAS domain except "Life Activities." In every WHODAS domain except "Cognition," the "Mental Disorder" group scored significantly higher than the "No Disorder" group. The addition of "Developmental Disorders" significantly increased WHODAS scores, except in "Mobility."

CONCLUSIONS

The WHODAS is a useful tool for identifying vulnerable students.

Continuity of mental disorders in children with chronic physical illness

Data on the chronicity of mental disorder in children with chronic physical illness (CPI) are limited. We examined the prevalence and predictors of homotypic and heterotypic continuity of mental disorder in children with CPI. A sample of 263 children aged 2-16 years with physician-diagnosed CPI were recruited from outpatient clinics (e.g., dermatology, respiratory) at a Canadian pediatric academic hospital and followed for 24 months. Parent and child-reported mental disorders (mood, anxiety, behavioral, attention-deficit hyperactivity disorder [ADHD]) were assessed using the Mini International Neuropsychiatric Interview for Children and Adolescents at baseline, 6, 12, and 24 months. Marginal regression models were computed to identify clinical, parent, and demographic factors associated with mental comorbidity over time. Mental disorder was observed in 24-27% of children with CPI based on child reports and 35-39% based on parent reports. Parent-reported models revealed significant homotypic continuity for all mental disorders (ORs = 4.2-9.5), and heterotypic continuity between mood and anxiety disorders (OR = 2.2), ADHD and behavioral disorders (OR = 5.1), and behavioral and each mental disorder (ORs = 6.7-8.4). Child-reported models revealed significant homotypic continuity for mood (OR = 8.8) and anxiety disorder (OR = 6.0), and heterotypic continuity between anxiety and mood disorders (OR = 12.4). Child disability (ORs = 1.3-1.5) and parent psychopathology (ORs = 1.2-1.8) were the most consistent predictors of both child- and parent-reported mental disorder over time. Mental comorbidity was prevalent and persistent in children with CPI with homotypic and heterotypic continuity common across informants. Child disability and parent psychopathology may be priority targets within integrated family-centered models of care to prevent mental comorbidity in children with CPI.

Validation of the 12-item World Health Organization Disability Assessment Schedule 2.0 in individuals with schizophrenia, depression, anxiety, and diabetes in Singapore

BACKGROUND

There is limited evidence on the reliability and validity of the 12-item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) in an Asian patient population with mental and physical disorders. The current study aimed to examine the psychometric properties of the WHODAS 2.0 among patients with schizophrenia, depression, anxiety, and diabetes.

METHODS

A total of 1076 patients (M  =  40.9 years, SD  =  14.7) were recruited from the outpatient clinics of a tertiary psychiatric hospital and a primary care clinic. Internal consistency and test-retest reliability, structural validity, convergent validity, agreement, and floor and ceiling effects were examined.

RESULTS

Our confirmatory factor analysis (CFA) showed that the 1-factor model fits our data. Multigroup CFA demonstrated metric and scalar invariance, indicating the scores can be compared across the four conditions. The WHODAS 2.0 scale had excellent reliability in the overall sample and good to excellent reliability across conditions. The test-retest reliability and agreement between self-administered and interviewer-administered modes were good. The WHODAS 2.0 scores had moderate to strong correlations with the Social and Occupational Functioning Scale and the Sheehan Disability Scale scores in the overall sample and across four conditions.

CONCLUSION

Findings suggest that the WHODAS 2.0 is a valid tool to measure functioning and disability in those with schizophrenia, anxiety, depression, and diabetes in an Asian patient population.

Measurement invariance of the 12-item self-administered World Health Organization Disability Assessment Schedule (WHODAS) 2.0 across early and late adolescents in Canada

PURPOSE

This study examined whether the 12-item self-administered World Health Organization Disability Assessment Schedule (WHODAS) 2.0 demonstrated measurement invariance between young adolescents aged 10-16 years with a physical illness and older adolescents aged 15-19 years from the general population.

MATERIALS AND METHODS

Young adolescent data come from the baseline wave of the Multimorbidity in Youth across the Life-course study (n = 117) and older adolescent data come from the Canadian Community Health Survey-Mental Health (n = 1851). Multiple-group confirmatory factor analysis was used to test measurement invariance. WHODAS 2.0 scores were compared across morbidity subgroups using multiple regression.

RESULTS

Measurement invariance of the WHODAS 2.0 was demonstrated: (χ2=635.2(144), p<.001; RMSEA = 0.059 (0.054, 0.064); CFI = 0.967; TLI = 0.970; and, SRMR = 0.068). Adjusting for data source, sex, race, immigrant status, and household income, WHODAS 2.0 scores were associated with morbidity status in a dose-response manner: physical illness only (B = 1.50, p<.001), mental illness only (B = 2.92, p<.001), and physical-mental comorbidity (B = 4.44, p<.001).

CONCLUSIONS

Measurement invariance of the WHODAS 2.0 suggests that young adolescents interpret the items and disability construct similarly to older adolescents - a group that previously demonstrated measurement invariance with an adult sample. The 12-item self-administered WHODAS 2.0 may be used to measure disability across the life-course. IMPLICATIONS FOR REHABILITATIONThe 12-item self-administered WHODAS 2.0 is one of the most widely used measures of disability and functioning.Measurement invariance of the WHODAS 2.0 suggests that young adolescents interpret the items and disability construct similarly to older adolescents and adults in Canada.Researchers and health professionals can be confident that differences in 12-item self-administered WHODAS 2.0 scores are real and meaningful.The 12-item self-administered WHODAS 2.0 may be used to measure disability across the life-course.

Validating the 12-item proxy-administered World Health Organization Disability Assessment Schedule (WHODAS) 2.0 in young children with chronic physical illness in Canada

PURPOSE

This study investigated the psychometric properties of the 12-item proxy-administered World Health Organization Disability Assessment Schedule (WHODAS) 2.0 in young children with chronic physical illness in Canada.

MATERIALS AND METHODS

Data come from the Multimorbidity in Youth across the Life-course, a longitudinal study of Canadian youth with physical illnesses (n = 263). Baseline parent-reported data from children (2-9 years, n = 143) and adolescents (10-16 years, n = 117) were analyzed. Wilcoxon's tests examined differences in WHODAS 2.0 scores between subgroups. Internal consistency was estimated, and confirmatory factor analysis modeled the WHODAS 2.0 factor structure. Regression modeling examined if the WHODAS 2.0 could discriminate between children with vs. without mental comorbidity.

RESULTS

Differences were found between children and adolescents regarding self-care and getting along, and for the item on emotional affect. Inter-item correlations were similar between subgroups and internal consistency was strong for children (α = 0.90) and adolescents (α = 0.93). The factor structure of the WHODAS 2.0 was confirmed; parameter estimates were similar between subgroups. The association between mental comorbidity and disability did not differ by age - comorbidity was associated with greater disability (β = 5.87, p < 0.01).

CONCLUSIONS

The 12-item proxy-administered WHODAS 2.0 appears valid and reliable in young children with physical illness and can be used in this population.Implications for rehabilitationThe 12-item proxy-administered WHODAS 2.0 has acceptable inter-item correlations and internal consistency in young Canadian children with chronic physical illness, and its factor structure is consistent with previous reportsExpansion of its use in measuring disability in young children provides the opportunity to use the WHODAS 2.0 across the life-course, facilitating the interpretation of changes in disability over time or in response to treatmentAdditional research is needed to determine responsiveness to change and the minimal clinically important difference of the WHODAS 2.0 in this population.

Agreement of the 12-item World Health Organization Disability Assessment Schedule (WHODAS) 2.0 in parents and youth with physical illness living in Canada

PURPOSE

This study modelled the factor structure and tested for measurement invariance between youth and parent reports on the 12-item World Health Organization Disability Assessment Schedule (WHODAS) 2.0; estimated agreement between informants; and, examined moderators of youth-parent discrepancies.

MATERIALS AND METHODS

Data come from the baseline wave of the Multimorbidity in Youth across the Life-course study (n = 117). Multiple-group confirmatory factor analysis was used to test for measurement invariance and Wilcoxon signed-rank tests compared informant scores. Intraclass correlation coefficient (ICC) and Bland-Altman limits of agreement plots were used to examine the youth-parent agreement.

RESULTS

The WHODAS 2.0 demonstrated measurement invariance [χ2 = 221.8(136), p < 0.01; RMSEA = 0.073 (0.055, 0.091); CFI = 0.962; and, SRMR = 0.078]. Youth typically reported more disability compared to parent proxies, with the exception of item Q5 (emotional). The agreement was low (ICC = 0.08-0.53). Youth sex moderated informant agreement such that more consistent agreement was seen for female youth (β = 0.54, p < .01) compared to male youth (β = 0.11, p = .29).

CONCLUSIONS

Youth and their parents interpret the construct of disability, as measured by the 12-item WHODAS 2.0, similarly. Thus, informant differences represent real differences that are not a consequence of error. Low parent-youth agreement reinforces the need for collecting multiple perspectives in the pediatric setting, especially for male youth.Implications for rehabilitationThe WHODAS 2.0 is one of the most widely used measures of disability and functioning.Measurement invariance of the WHODAS 2.0 suggests that youth and parents interpret the construct of disability similarly.Parent-youth agreement was low and youth typically report more disability compared to parent proxies.More consistent agreement with parents was found for female youth compared to male youth.

Longitudinal Association Between Youth Multimorbidity and Psychological Distress: Impact of the COVID-19 Pandemic

This research examined longitudinal associations between youth physical-mental multimorbidity and psychological distress before and during the COVID-19 pandemic; assessed the contextual impact of the pandemic on these associations; and, investigated potential moderating factors. The Multimorbidity in Youth across the Life-course, an ongoing study of youth aged 2-16 years (mean 9.4; 46.9% female) with physical illness, was used as the sampling frame for this COVID-19 sub-study, in which 147 parent-youth dyads participated. Psychological distress was measured using the Kessler-6 (K6). Multimorbidity was associated with higher pre-pandemic, but not with intra-pandemic distress. Disability moderated pre-pandemic distress-multimorbidity was associated with higher K6 among youth with high disability, but not among youth with low disability. Age moderated intra-pandemic distress-multimorbidity was associated with higher K6 in older youth, but not among younger youth.

Self-concept in Adolescents with Physical-Mental Comorbidity

Objective

Little is known about self-concept in adolescents with physical-mental comorbidity. This study investigated whether physical-mental comorbidity was associated with self-concept in adolescents and examined if adolescent age or sex moderated the association between physical-mental comorbidity and self-concept.

Methods

Study data were obtained from the Multimorbidity in Youth across the Life-course (MY LIFE), an ongoing Canadian study of adolescents with chronic physical illness who were recruited from outpatient clinics at a pediatric hospital. A total of 116 adolescents aged ≥ 10 years provided self-reports on key measures.

Results

Adolescents with comorbidity (n = 48) had lower self-concept scores on the Self-Determination Questionnaire (SDQ; d = 0.62) and Self-Perception Profile for Children (SPPC; d = 0.53) vs. adolescents without comorbidity (n = 68). An age × comorbidity status interaction was found and age-stratified models were computed to investigate this moderating effect of age. Amongst older adolescents, comorbidity was associated with lower SDQ (B = -2.55, p < .001), but this association was not found among younger adolescents (B = -0.29, p = .680). A similar effect was found for SPPC among older (B = -0.48, p = .001) and younger adolescents (B = 0.03, p = .842). Adolescent sex was not found to be a moderator.

Conclusions

Physical-mental comorbidity in adolescence was associated with lower self-concept and this association was moderated by age-differences between adolescents with vs. without comorbidity were greater for older adolescents and were clinically relevant. Opportunities to support positive self-perceptions for adolescents with comorbidity are warranted, especially when planning the transition from pediatric to adult health services.

Internalizing-Externalizing Comorbidity and Impaired Functioning in Children

BACKGROUND

The comorbidity of mental illnesses is common in child and adolescent psychiatry. Children with internalizing-externalizing comorbidity often experience worse health outcomes compared to children with a single diagnosis. Greater knowledge of functioning among children with internalizing-externalizing comorbidity can help improve mental health care.

OBJECTIVE

The objective of this exploratory study was to examine whether internalizing-externalizing comorbidity was associated with impaired functioning in children currently receiving mental health services.

METHODS

The data came from a cross-sectional clinical sample of 100 children aged 4-17 with mental illness and their parents recruited from an academic pediatric hospital. The current mental illnesses in children were measured using the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID), and the level of functioning was measured using the World Health Organization Disability Assessment Schedule (WHODAS) 2.0. Linear regression was used to estimate the association between internalizing-externalizing comorbidity and level of functioning, adjusting for demographic, psychosocial, and geographic covariates.

RESULTS

Internalizing-externalizing comorbidity in children was associated with worse functioning compared to children with strictly internalizing comorbidities, β = 0.32 (p = 0.041). Among covariates, parent's psychological distress, β = 0.01 (p = 0.004), and distance to the pediatric hospital, β = 0.38 (p = 0.049) were associated with worse functioning in children.

CONCLUSIONS

Health professionals should be mindful that children with internalizing-externalizing comorbidity may experience worsening functioning that is disruptive to daily activities and should use this information when making decisions about care. Given the exploratory nature of this study, additional research with larger and more diverse samples of children is warranted.

Prevalence and Correlates of Physical-mental Multimorbidity in Outpatient Children From a Pediatric Hospital in Canada

OBJECTIVE

The aim of this study was to estimate the six-month prevalence of mental illness in children with chronic physical illness (multimorbidity), examine agreement between parent and child reports of multimorbidity, and identify factors associated with child multimorbidity.

METHOD

The sample included 263 children aged 2-16 years with a physician-diagnosed chronic physical illness recruited from the outpatient clinics at a pediatric hospital. Children were categorized by physical illness according to the International Statistical Classification of Diseases and Related Health Problems (ICD)-10. Parent and child-reported six-month mental illness was based on the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID).

RESULTS

Overall, 101 (38%) of children had a parent-reported mental illness; 29 (25%) children self-reported mental illness. There were no differences in prevalence across ICD-10 classifications. Parent-child agreement on the MINI-KID was low (κ = 0.18), ranging from κ = 0.24 for specific phobia to κ = 0.03 for attention-deficit hyperactivity. From logistic regression modeling (odds ratio [OR] and 95% confidence interval), factors associated with multimorbidity were: child age (OR = 1.16 [1.04, 1.31]), male (OR = 3.76 [1.54, 9.22]), ≥$90,000 household income (OR = 2.57 [1.08, 6.22]), parental symptoms of depression (OR = 1.09 [1.03, 1.14]), and child disability (OR = 1.21 [1.13, 1.30]). Similar results were obtained when modeling number of mental illnesses.

CONCLUSIONS

Findings suggest that six-month multimorbidity is common and similar across different physical illnesses. Level of disability is a robust, potentially modifiable correlate of multimorbidity that can be assessed routinely by health professionals in the pediatric setting to initiate early mental health intervention to reduce the incidence of multimorbidity in children.

Correlates of Moderate-to-Vigorous Physical Activity in Children With Physical Illness and Physical-Mental Multimorbidity

This study measured physical activity (PA) and explored its correlates among children with multimorbidity (co-occurring chronic physical and mental illness; MM) versus those with chronic physical illness only (PI). This study used baseline data from the Multimorbidity in Children and Youth Across the Life Course (MY LIFE) study, an on-going cohort study following 263 children with a PI 2 to 16 years of age (mean age: 9.8 years, SD = 4.0; 47.7% female). PA was measured using accelerometry, and demographic and psychosocial variables were collected using questionnaires. Of the 55 children with MM and the 85 with PI with valid accelerometer data, 38.1% and 41.2%, respectively, met average daily PA guidelines. Correlates of moderate-to-physical PA (MVPA) among children with MM were age, ρ(53) = -0.45, p = .001, body mass index (BMI), ρ(48) = -0.28, p = .04, self-perceived behavioral conduct, ρ(24) = -0.45, p = .02, physical health-related quality of life, ρ(51) = 0.56, p < .001, and peer support, ρ(52) = 0.27, p = .04. Correlates of MVPA among children with PI were age, ρ(83) = -0.40, p < .001, sex, ρ(83) = -0.26, p = .01, self-perceived social competence, ρ(31) = 0.42, p = .02, self-perceived athletic competence, ρ(31) = 0.48, p = .005, physical health-related quality of life, ρ(83) = 0.34, p = .001, participation in community sport, ρ(31) = 0.41, p = .02, and family functioning, ρ(83) = 0.26, p = .02. These results demonstrate that children with PI and MM are insufficiently active and their PA is correlated with demographic and psychosocial factors.

Measurement Invariance of the GAD-7 and CESD-R-10 Among Adolescents in Canada

OBJECTIVE

The primary objective of our study was to assess measurement invariance (by grade and sex) of the 7-item Generalized Anxiety Disorder (GAD-7) and 10-item Center for Epidemiologic Studies Depression Revised (CESD-R-10) scales in a sample of adolescents in Canada. If measurement invariance was demonstrated, our secondary objective was to estimate differences in scale scores across these subgroups.

METHODS

We used data from 59,052 adolescents in Year 7 (2018-19) of the COMPASS school-based study. Measurement invariance was tested within a multigroup confirmatory factor analysis framework. Differences in scale scores were estimated using mixed linear regression which accounted for school-level clustering and adjusted for relevant confounders.

RESULTS

Both the GAD-7 and CESD-R-10 demonstrated strict measurement invariance by sex and grade in our sample. Mean scale scores were higher among adolescents in grade 12 compared to grade 9 (βGAD-7 = 0.91, p < .001; βCESD-R-10 = 0.99, p < .001) and among female adolescents compared to males (βGAD-7 = 3.36, p < .001; βCESD-R-10 = 2.58, p < .001).

CONCLUSIONS

Findings support the validity of the GAD-7 and CESD-R-10 for screening risk of generalized anxiety and depression among Canadian adolescents, and further indicate that differences observed in scale scores across subgroups reflect actual differences in risk for generalized anxiety and major depression, respectively.

Measuring health-related quality of life in young children with physical illness: psychometric properties of the parent-reported KIDSCREEN-27

PURPOSE

This study examined whether the KIDSCREEN-27 was reliable and valid in young children 2-7 years with chronic physical illnesses which included estimating inter-domain correlations and internal consistency; measurement invariance testing; and, discriminant and convergent validity assessments.

METHODS

Data come from the Multimorbidity in Children and Youth across the Life-course; a longitudinal study of individuals aged 2-16 years with physical illness. The parent-reported KIDSCREEN-27 was administered. Children (2-7 years; n = 106) were compared to adolescents (8-16 years; n = 157). Reliability was estimated using Cronbach α for internal consistency. Multiple group confirmatory factor analysis tested for measurement invariance. Cohen's d and Pearson coefficient were used to assess discriminant validity by sex and age. Convergent validity was tested using Pearson coefficients with the WHODAS 2.0 (child functioning/impairment). Multiple regression examined associations between multimorbidity (co-occurring physical and mental illness) and HRQL.

RESULTS

Internal consistency reliabilities were α = 0.74-0.88 (children) and α = 0.77-0.88 (adolescents). Inter-domain correlations were relatively low (children: r = 0.18-0.59; adolescents: r = 0.30-0.62) indicating that each KIDSCREEN-27 domain was measuring a unique aspect of health-related quality of life. Measurement invariance was demonstrated (scalar level). Parameter estimates of the invariant models were similar for children and adolescents. Small, non-significant correlations were found for sex and age for children and adolescents. Medium, significant correlations were found for both groups between the KIDSCREEN-27 and WHODAS 2.0. Children and adolescents with multimorbidity had significantly lower physical well-being, psychological well-being, and school environment scores compare to those without multimorbidity. Regression coefficients were similar between groups.

CONCLUSION

Findings provide evidence of adequate psychometrics for the KIDSCREEN-27 in young children with chronic physical illness.

Parent-Child Agreement on the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID)

OBJECTIVE

Multiple informants are often used in the assessment of child psychopathology; however, parent-child agreement is low in child psychiatry. The objective of this exploratory study was to assess informant agreement on the Mini International Neuropsychiatric Interview for Children and Adolescents (MINI-KID) in a clinical sample of children with mental disorders and their parents, and to examine health and demographic factors associated with agreement.

METHOD

MINI-KID results were analyzed for 88 parent-child dyads. Children were between 8-17 years old and were receiving in- or outpatient services for at least one mental disorder at a pediatric hospital. Kappas were calculated to assess parent-child agreement and logistic regression models were used to identify factors associated with agreement.

RESULTS

Agreement was low to moderate (κ=0.19-0.41) across the MINI-KID modules. Household income was associated with agreement for major depression, generalized anxiety, and attention-deficit hyperactivity disorder. Recruitment setting and parent psychological distress were associated with agreement for generalized anxiety and separation anxiety, respectively. Age, sex, and child disability/impairment were not associated with agreement.

CONCLUSIONS

Parent-child agreement on the MINI-KID was low to moderate, and few factors were associated with agreement. These initial findings reaffirm the need for multiple informants when assessing psychopathology in children and can be used by health professionals to facilitate parent-child discussions in clinical settings in child psychiatry.

COVID-19-Related Psychological and Psychosocial Distress Among Parents and Youth With Physical Illness: A Longitudinal Study

Despite the initial thrust of research aimed at understanding the impact of the COVID-19 pandemic on youth with physical illness and their parents, knowledge gaps in the literature remain, providing the impetus for additional investigation. This study described changes in psychological distress from prior to during the COVID-19 pandemic for parents and youth with physical illness, compared parent-proxy and youth self-reported perceptions of COVID-19-related psychosocial health, and modeled factors associated with psychological and psychosocial distress. There were 147 parent-youth dyads (2-16 years) from MY LIFE-a longitudinal study of youth with physical illness. The Kessler-6 (K6) measured psychological distress for the time before the COVID-19 lockdown (December 19 to March 20) and during the pandemic (December 20 to March 21) among parents and youth. COVID-19-related psychosocial health was measured using the CRISIS. Parents and youth reported increases in K6 scores (d = 0.62 and 0.38). Parent-proxy reports on the K6 were lower vs. youth self-reports prior to and during the pandemic (d = 0.63 for both). In contrast, parents reported lower proxy CRISIS scores for worries (d = 0.38) and effects of social restrictions (d = 0.52). Pandemic parent K6 scores were associated with age, combined in-person and online schooling for youth, COVID-19-related worries, and effects of social restrictions. For youth, only COVID-19-related worries and effects of social restrictions were associated with K6 scores. Parent worries were associated with youth sex, parental stress, family functioning, online and combination learning, and social restrictions. Parental depression and worries were associated with effects of social restrictions. Youth worries were associated with online and combination learning, and social restrictions. Youth disability, online learning, and worries were associated with effects of social restrictions. Few clinical factors are associated with COVID-19-related psychological and psychosocial distress. Instead, parent/family factors and youth learning environment have prominent roles in predicting outcomes and have implications for the health, education, and social services systems.

Exploratory and confirmatory factor analysis of the 12-item Arabic World Health Organization Disability Assessment Schedule (WHODAS 2.0) as a screening tool for Syrian refugees

Background

The World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) is a generic measure of functional impairment and disability but to date no studies have reported its applicability in a population of Syrian refugees.

Aims

The aim of this study was to explore the psychometric properties and factor structure of the Arabic version of the WHODAS 2.0 among a population of Syrian refugees in a Jordanian refugee camp setting. The tool was used as part of a screening procedure for a randomised controlled trial assessing the effectiveness of a low-intensity psychological intervention.

Method

A representative sample of Syrian refugees (n = 650) were screened to assess levels of functional impairment and psychological distress. The screening results were used to explore the internal consistency and dimensionality of the WHODAS 2.0. We assessed level of convergence with the validated Kessler 10-item Psychological Distress Scale (K10), which assesses psychological distress. Exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were conducted to explore the construct validity and factor structure of the WHODAS 2.0.

Results

The mean baseline WHODAS 2.0 score was 20.5 (s.d. = 7.6). The internal consistency was acceptable (Cronbach's alpha 0.74), with all 12-items appearing to be related to the same construct. The WHODAS 2.0 was positively correlated with the K10 (r = 0.57, P < 0.001). The results of the EFA identified a three-factor solution accounting for 51% of variation, corresponding with factors related to self-activities, external activities and self-care. CFA results indicated good fit of the three-factor solution.

Conclusions

The results indicated that the WHODAS 2.0 has a three-factor solution and is an acceptable screening tool for use among Syrian refugees.

Health-related quality of life in children with and without physical-mental multimorbidity

PURPOSE

This study examined health-related quality of life (HRQL) in children across different physical illnesses; estimated parent-child agreement on HRQL reports; compared HRQL between children with and without physical-mental multimorbidity; and tested if multimorbidity was associated with HRQL.

METHODS

Children aged 6-16 years (mean = 11.1; n = 198) with one physical illness and their parents were recruited from a pediatric hospital. Physical illnesses were classified according to the International Statistical Classification of Diseases and Related Health Problems (ICD)-10, mental illnesses were assessed using the Mini International Neuropsychiatric Interview for Children and Adolescents, and HRQL was measured using the KIDSCREEN-27. Children who screened positive for ≥ 1 mental illness were classified as having physical-mental multimorbidity. χ²/t tests compared sample characteristics of children with vs. without multimorbidity; Kruskal-Wallis tests compared KIDSCREEN-27 scores across ICD-10 categories; interclass correlation coefficients estimated parent-child agreement; and multiple regression examined effects of the number of mental illnesses on HRQL.

RESULTS

HRQL was similar across ICD-10 categories. Parent-child agreement was fair to good for all HRQL domains, regardless of multimorbidity status. Parent-reported HRQL was significantly lower for children with multimorbidity compared to norms across all domains, whereas child-reported HRQL was significantly lower for physical well-being, psychological well-being, and school environment. Number of mental illnesses was negatively associated with psychological well-being and school environment in a dose-response manner.

CONCLUSION

Children with physical-mental multimorbidity are vulnerable to experiencing lower HRQL, particularly for psychological well-being and school environment. Longitudinal studies documenting trajectories of HRQL and school-based interventions that target these domains of HRQL for children with multimorbidity are warranted.

Cohort Profile: Multimorbidity in Children and Youth Across the Life-course (MY LIFE) Study

OBJECTIVE

This manuscript serves to provide an overview of the methods of the Multimorbidity in Children and Youth across the Life-course (MY LIFE) study, profile sample characteristics of the cohort, and provide baseline estimates of multimorbidity to foster collaboration with clinical and research colleagues across Canada.

METHOD

MY LIFE is comprised of 263 children (2-16 years) with a physical illness recruited from McMaster Children's Hospital, their primary caregiving parent, and their closest-aged sibling. Participants are followed with data collection at recruitment, 6, 12, and 24 months which includes structured interviews, self-reported measures, and biological samples and occur in a private research office or at participants' homes. Post-COVID-19, data collection transitioned to mail and telephone surveys.

RESULTS

At recruitment, children were 9.4 (4.2) years of age and 52.7% were male. The mean duration of their physical illness was 4.5 (4.1) years; 25% represent incident cases (duration <1 year). Most (69.7%) had healthy body weight and intelligence in the average range (73.5%). Overall, 38.2% of children screened positive for ≥1 mental illness according to parent report (24.8% screened positive based on child self-report). Compared to 2016 Census data, the MY LIFE cohort overrepresents families of higher socioeconomic status.

CONCLUSIONS

Multimorbidity is common among children and these baseline data will serve to measure relative changes in the mental health of children with physical illness over time. MY LIFE will provide new information for understanding multimorbidity among children, though underrepresentation of lower socioeconomic families may have implications for the generalizability of findings.

Measurement Invariance of the Flourishing Scale among a Large Sample of Canadian Adolescents

Our aim was to examine measurement invariance of the Flourishing Scale (FS)—a concise measure of psychological wellbeing—across two study samples and by population characteristics among Canadian adolescents. Data were retrieved from 74,501 Canadian secondary school students in Year 7 (2018–2019) of the COMPASS Study and from the original validation of the FS (n = 689). We assessed measurement invariance using a confirmatory factor analysis in which increasingly stringent equality constraints were specified for model parameters between the following groups: study sample (i.e., adolescents vs. adults), gender, grade, and ethno-racial identity. In all models, full measurement invariance of the FS across all sub-groups was demonstrated. Our findings support the validity of the FS for measuring psychological wellbeing among Canadian adolescents in secondary school. Observed differences in FS score among subgroups therefore represent true differences in wellbeing rather than artifacts of differential interpretation.

Tansey T. Psychometric Validation of a Measure Assessing Functional Limitations of Students With Disabilities: An Adaptation of the World Health Organization Disability Assessment Schedule 2.0

The 12-item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) has been used to assess functional impairments in various disability populations and has been shown to be applicable to the youth population. The purpose of the study was to evaluate the psychometric properties of the World Health Organization Disability Assessment Schedule II–Youth Version (WHODAS-Y). Results of the study revealed a two-factor solution, including the socio-cognitive index and self-care index. The WHODAS-Y measurement appears to be a reliable and valid measure of function impairment in transition-age youth with disabilities in a community setting. This assessment tool can be integrated in vocational rehabilitation practices and guide rehabilitation counselors in identifying needs and facilitators related to education and employment-related services, as well as understanding health care needs in youth with disabilities.

Multimorbidity in Children and Youth Across the Life-course (MY LIFE): protocol of a Canadian prospective study

INTRODUCTION

Multimorbidity, the co-occurrence of a chronic physical condition and mental disorder, affects a substantial number of children and youth and can lead to compromised quality of life, hardship for families, and an increased burden on the healthcare system. We are conducting a study to document the course of mental disorder in children and youth diagnosed with a chronic physical condition; identify predictors of child and youth multimorbidity; examine whether the effects of these predictors are moderated by relevant psychosocial and biological factors; explore potential inflammatory and stress biomarkers that mediate the onset of child and youth multimorbidity; and, assess whether multimorbidity in children and youth alters patterns of mental health service use.

METHODS AND ANALYSIS

Multimorbidity in Children and Youth Across the Life-course (MY LIFE) is a prospective study. Two hundred and fifty children and youth aged 2-16 years diagnosed with a chronic physical condition along with one parent will be recruited from the outpatient clinics at a paediatric tertiary care centre. Data will be collected using a multi-informant, multimethod design at four time-points (at recruitment, and at 6, 12 and 24 months postrecruitment). Parents will provide reports for all children/youth. In addition, youth ≥10 years will self-report. Mental disorder will be assessed using structured interviews. On completion of data collection, participant-reported data will be linked to provincial health records to identify mental health services use. Multilevel analyses (survival, proportional hazard, structural equation modelling) will be used to address MY LIFE objectives.

ETHICS AND DISSEMINATION

This study has been approved by the University of Waterloo Human Research Ethics Board and the Hamilton Integrated Research Ethics Board. Findings will be disseminated to key stakeholders using a number of outlets (peer-reviewed publications and conferences, lay informational pamphlets, social media).