| 1. |
- Ahlberg, Richard, et al.
(författare)
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Shared familial risk factors between autism spectrum disorder and obesity : a register‐based familial coaggregation cohort study
- 2022
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Ingår i: Journal of Child Psychology and Psychiatry. - : John Wiley & Sons. - 0021-9630 .- 1469-7610. ; 63:8, s. 890-899
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Tidskriftsartikel (refereegranskat)abstract
- Background: Meta-analyses suggest an association between autism spectrum disorder (ASD) and obesity, but the factors underlying this association remain unclear. This study investigated the association between ASD and obesity stratified on intellectual disability (ID). In addition, in order to gain insight into possible shared etiological factors, the potential role of shared familial liability was examined.Method: We studied a cohort of 3,141,696 individuals by linking several Swedish nationwide registers. We identified 35,461 individuals with ASD and 61,784 individuals with obesity. Logistic regression models were used to estimate the association between ASD and obesity separately by ID and sex and by adjusting for parental education, psychiatric comorbidity, and psychotropic medication. Potential shared familial etiologic factors were examined by comparing the risk of obesity in full siblings, maternal and paternal half-siblings, and full- and half-cousins of individuals with ASD to the risk of obesity in relatives of individuals without ASD.Results: Individuals with ASD + ID (OR = 3.76 [95% CI, 3.38-4.19]) and ASD-ID (OR = 3.40 [95% CI, 3.23-3.58]) had an increased risk for obesity compared with individuals without ASD. The associations remained statistically significant when adjusting for parental education, psychiatric comorbidity, and medication. Sex-stratified analyses indicated a higher relative risk for males compared with females, with statistically significant interaction effects for ASD-ID, but not for ASD+ID in the fully adjusted model. First-degree relatives of individuals with ASD+ID and ASD-ID had an increased risk of obesity compared with first-degree relatives of individuals without ASD. The obesity risk was similar in second-degree relatives of individuals with ASD+ID but was lower for and ASD-ID. Full cousins of individuals with ASD+ID had a higher risk compared with half-cousins of individuals with ASD+ID). A similar difference in the obesity risk between full cousins and half-cousins was observed for ASD-ID.Conclusions: Individuals with ASD and their relatives are at increased risk for obesity. The risk might be somewhat higher for males than females. This warrants further studies examining potential common pleiotropic genetic factors and shared family-wide environmental factors for ASD and obesity. Such research might aid in identifying specific risks and underlying mechanisms in common between ASD and obesity.
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| 2. |
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| 3. |
- Andersson, Anneli, 1992-, et al.
(författare)
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Research Review : The strength of the genetic overlap between ADHD and other psychiatric symptoms - a systematic review and meta-analysis
- 2020
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Ingår i: Journal of Child Psychology and Psychiatry. - : Blackwell Publishing. - 0021-9630 .- 1469-7610. ; 61:11, s. 1173-1183
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Forskningsöversikt (refereegranskat)abstract
- Background: Attention-deficit/hyperactivity disorder (ADHD) frequently co-occurs with other psychiatric disorders. Twin studies have established that these co-occurrences are in part due to shared genetic risks. However, the strength of these genetic overlaps and the potential heterogeneity accounted for by type of psychiatric symptoms, age, and methods of assessment remain unclear. We conducted a systematic review to fill this gap.Methods: We searched PubMed, PsycINFO, Embase, and Web of Science until March 07, 2019. Genetic correlations (r(g)) were used as effect size measures.Results: A total of 31 independent studies fulfilled the inclusion criteria. The pooled estimates showed that the associations between ADHD and other psychiatric symptoms were partly explained by shared genetic factors, with a pooled genetic correlation of 0.50, 95% confidence interval: 0.46-0.60. The genetic correlations (r(g)) between ADHD and externalizing (r(g) = .49 [0.37-0.61]), internalizing (r(g) = .50 [0.39-0.69]), and neurodevelopmental (r(g) = .56 [0.47-0.66]) symptoms were similar in magnitude. The genetic correlations in childhood and adulthood werer(g) = .53 (0.43-0.63) andr(g) = .51 (0.44-0.56), respectively. For methods of assessment, the genetic correlations were also similar in strength, self-reportsr(g) = .52 (0.47-0.58), other informantsr(g) = .55 (0.41-0.69), and combined ratersr(g) = .50 (0.33-0.65).Conclusions: These findings indicate that the co-occurrence of externalizing, internalizing, and neurodevelopmental disorder symptoms in individuals with ADHD symptoms in part is due to a shared genetic risk.
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| 5. |
- Cervin, Matti, et al.
(författare)
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Efficacy and acceptability of cognitive-behavioral therapy and serotonin reuptake inhibitors for pediatric obsessive-compulsive disorder: a network meta-analysis
- 2024
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Ingår i: Journal of Child Psychology and Psychiatry. - 0021-9630.
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Forskningsöversikt (refereegranskat)abstract
- BackgroundCognitive-behavioral therapy (CBT) and serotonin reuptake inhibitors (SRIs) are recommended treatments for pediatric obsessive-compulsive disorder (OCD), but their relative efficacy and acceptability have not been comprehensively examined. Further, it remains unclear whether the efficacy of in-person CBT is conserved when delivered in other formats, such as over telephone/webcam or as Internet-delivered CBT (ICBT).MethodsPubMed, PsycINFO, trial registries, and previous systematic reviews were searched for randomized controlled trials (RCTs) comparing CBT (in-person, webcam/telephone-delivered, or ICBT) or SRIs with control conditions or each other. Network meta-analyses were conducted to examine efficacy (post-treatment Children's Yale-Brown Obsessive Compulsive Scale) and acceptability (treatment discontinuation). Confidence in effect estimates was evaluated with CINeMA (Confidence in Network Meta-Analysis).ResultsThirty eligible RCTs and 35 contrasts comprising 2,057 youth with OCD were identified. In-person CBT was significantly more efficacious than ICBT, waitlist, relaxation training, and pill placebo (MD range: 3.95–11.10; CINeMA estimate of confidence: moderate) but did not differ significantly from CBT delivered via webcam/telephone (MD: 0.85 [−2.51, 4.21]; moderate), SRIs (MD: 3.07 [−0.07, 6.20]; low), or the combination of in-person CBT and SRIs (MD: −1.20 [−5.29, 2.91]; low). SRIs were significantly more efficacious than pill placebo (MD: 4.59 [2.70, 6.48]; low) and waitlist (MD: 8.03 [4.24, 11.82]; moderate). No significant differences for acceptability emerged, but confidence in estimates was low.ConclusionsIn-person CBT and SRIs produce clear benefits compared to waitlist and pill placebo and should be integral parts of the clinical management of pediatric OCD, with in-person CBT overall having a stronger evidence base. The combination of in-person CBT and SRIs may be most efficacious, but few studies hinder firm conclusions. The efficacy of CBT appears conserved when delivered via webcam/telephone, while more trials evaluating ICBT are needed.
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| 6. |
- Cervin, Matti, et al.
(författare)
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Symptom-specific effects of cognitive-behavioral therapy, sertraline, and their combination in a large randomized controlled trial of pediatric anxiety disorders
- 2020
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley. - 0021-9630 .- 1469-7610. ; 61:4, s. 492-502
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Tidskriftsartikel (refereegranskat)abstract
- Background: Pediatric anxiety disorders are highly prevalent and associated with significant functional disabilities and lifelong morbidity. Cognitive-behavioral therapy (CBT), sertraline, and their combination are effective treatments, but little is known about how these treatments exert their effects.Methods: Using network intervention analysis (NIA), we analyzed data from the largest randomized controlled treatment trial of pediatric anxiety disorders (Child/Adolescent Anxiety Multimodal Study, NCT00052078, clinicaltrials.gov/ct2/show/NCT00052078) and outlined the causal symptom domain-specific effects of CBT, sertraline, and their combination over the course of the 12-week treatment while taking into account both specificity and overlap between symptom dimensions. Results: All active treatments produced positive effects with the most pronounced and consistent effects emerging in relation to psychological distress, family interference, and avoidance. Psychological distress was consistently the most and physical symptoms the least influential symptom domain in the disorder network.Conclusions: All active treatments showed beneficial effects when compared to placebo and NIA identified that these effects were exerted similarly across treatments and primarily through a reduction of psychological distress, family interference, and avoidance. CBT and sertraline may have differential mechanisms of action in relation to psychological distress. Given the lack of causal effects on interference outside family and physical symptoms, interventions tailored to target these domains may aid in the building of more effective treatments. Psychological distress and avoidance should remain key treatment focuses because of their central roles in the disorder network. The findings inform and promote developing more effective interventions. Keywords: CBT/cognitive behavior therapy; anxiety/anxiety disorders; pharmacotherapy; clinical trials; child/adolescent.
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| 7. |
- Cervin, Matti, et al.
(författare)
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Technology‐delivered cognitive‐behavioral therapy for pediatric anxiety disorders: a meta‐analysis of remission, posttreatment anxiety, and functioning
- 2021
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley. - 0021-9630 .- 1469-7610.
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundThe efficacy of technology-delivered cognitive-behavioral therapy (tCBT) for pediatric anxiety disorders (ADs) is uncertain as no meta-analysis has examined outcomes in trials that used structured diagnostic assessments at pre- and posttreatment.MethodsWe carried out a systematic review and meta-analysis of randomized controlled trials (RCTs) of tCBT for pediatric ADs that included participants <18 years of age with a confirmed primary AD according to a structured diagnostic interview. Nine studies with 711 participants were included.ResultstCBT outperformed control conditions for remission for primary AD (37.9% vs. 10.2%; k = 9; OR = 4.73; p < .0001; I2 = 0%; moderate certainty), remission for all ADs (19.5% vs. 5.3%; k = 8; OR = 3.32; p < .0001; I2 = 0%; moderate certainty), clinician-rated functioning (k = 7; MD = −4.38; p < .001; I2 = 56.9%; low certainty), and caregiver-reported anxiety (k = 7; SMD = 0.27; p = .02; I2 = 41.4%; low certainty), but not for youth-reported anxiety (k = 9; SMD = 0.13; p = .12; I2 = 0%; low certainty). More severe pretreatment anxiety, a lower proportion of completed sessions, no face-to-face sessions, media recruitment, and a larger proportion of females were associated with lower remission rates for primary AD.ConclusionstCBT has a moderate effect on remission for pediatric ADs and clinician-rated functioning, a small effect on caregiver-reported anxiety, and no statistically significant effect on youth-reported anxiety. The certainty of these estimates is low to moderate. Remission rates vary substantially across trials and several factors that may influence remission were identified. Future research should examine for whom tCBT is most appropriate and what care to offer the large proportion that does not remit. Future RCTs should consider contrasting tCBT with partial tCBT (e.g., including therapist-led exposure) and/or face-to-face CBT.
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| 8. |
- Cheesman, Rosa, et al.
(författare)
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How interactions between ADHD and schools affect educational achievement : a family-based genetically sensitive study.
- 2022
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley-Blackwell Publishing Inc.. - 0021-9630 .- 1469-7610. ; 63:10, s. 1174-1185
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Children with ADHD tend to achieve less than their peers in school. It is unknown whether schools moderate this association. Nonrandom selection of children into schools related to variations in their ADHD risk poses a methodological problem.METHODS: We linked data on ADHD symptoms of inattention and hyperactivity and parent-child ADHD polygenic scores (PGS) from the Norwegian Mother, Father, and Child Cohort Study (MoBa) to achievement in standardised tests and school identifiers. We estimated interactions of schools with individual differences between students in inattention, hyperactivity, and ADHD-PGS using multilevel models with random slopes for ADHD effects on achievement over schools. In our PGS analyses, we adjust for parental selection of schools by adjusting for parental ADHD-PGS (a within-family PGS design). We then tested whether five school sociodemographic measures explained any interactions.RESULTS: Analysis of up to 23,598 students attending 2,579 schools revealed interactions between school and ADHD effects on achievement. The variability between schools in the effects of inattention, hyperactivity and within-family ADHD-PGS on achievement was 0.08, 0.07 and 0.05 SDs, respectively. For example, the average effect of inattention on achievement was β = -0.23 (SE = 0.009), but in 2.5% of schools with the weakest effects, the value was -0.07 or less. ADHD has a weaker effect on achievement in higher-performing schools. Schools make more of a difference to the achievements of students with higher levels of ADHD, explaining over four times as much variance in achievement for those with high versus average inattention symptoms. School sociodemographic measures could not explain the ADHD-by-school interactions.CONCLUSIONS: Although ADHD symptoms and genetic risk tend to hinder achievement, schools where their effects are weaker do exist. Differences between schools in support for children with ADHD should be evened out.
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| 9. |
- Chen, C., et al.
(författare)
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Associations between psychiatric polygenic risk scores and general and specific psychopathology symptoms in childhood and adolescence between and within dizygotic twin pairs
- 2022
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Ingår i: Journal of Child Psychology and Psychiatry. - : Wiley. - 0021-9630 .- 1469-7610. ; 63:12, s. 1513-1522
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Tidskriftsartikel (refereegranskat)abstract
- Background Although polygenic risk scores (PRS) predict psychiatric problems, these associations might be attributable to indirect pathways including population stratification, assortative mating, or dynastic effects (mediation via parental environments). The goal of this study was to examine whether PRS-psychiatric symptom associations were attributable to indirect versus direct pathways. Methods The sample consisted of 3,907 dizygotic (DZ) twin pairs. In childhood, their parents rated them on 98 symptoms. In adolescence (n = 2,393 DZ pairs), both the parents and the twins rated themselves on 20 symptoms. We extracted one general and seven specific factors from the childhood data, and one general and three specific factors from the adolescent data. We then regressed each general factor model onto ten psychiatric PRS simultaneously. We first conducted the regressions between individuals (beta) and then within DZ twin pairs (beta(w)), which controls for indirect pathways. Results In childhood, the PRS for ADHD predicted general psychopathology (beta = 0.09, 95% CI: [0.06, 0.12]; beta(w) = 0.07 [0.01, 0.12]). Furthermore, the PRS for ADHD predicted specific inattention (beta = 0.04 [0.00, 0.08]; beta(w) = 0.09 [0.01, 0.17]) and specific hyperactivity (beta = 0.07 [0.04, 0.11]; beta(w) = 0.09 [0.01, 0.16]); the PRS for schizophrenia predicted specific learning (beta = 0.08 [0.03, 0.13]; beta(w) = 0.19 [0.08, 0.30]) and specific inattention problems (beta = 0.05 [0.01, 0.09]; beta(w) = 0.10 [0.02, 0.19]); and the PRS for neuroticism predicted specific anxiety (beta = 0.06 [0.02, 0.10]; beta(w) = 0.06 [0.00, 0.12]). Overall, the PRS-general factor associations were similar between individuals and within twin pairs, whereas the PRS-specific factors associations amplified by 84% within pairs. Conclusions This implies that PRS-psychiatric symptom associations did not appear attributable to indirect pathways such as population stratification, assortative mating, or mediation via parental environments. Rather, genetics appeared to directly influence symptomatology.
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