Nor Christian Torp

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Verified

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• Ph.D/Clinical Psychologist
• Medical Professional at Vestre Viken Hospital Trust

To identify predictors of treatment response in a large sample of pediatric participants with obsessive-compulsive disorder (OCD). The Nordic Long-term Obsessive compulsive disorder (OCD) Treatment Study (NordLOTS) included 269 children and adolescents, 7 to 17 years of age, with a DSM-IV diagnosis of OCD. Outcomes were evaluated after 14 weekly se...

Objective: The purpose of this study was to examine the acute effectiveness of manualized exposure-based CBT with a family-based treatment, as an initial treatment for pediatric OCD delivered in regular community child and adolescents outpatient clinics. The report summarizes outcome of the first treatment step in the NordLOTS, which was conducted...

Det er ikke mer enn 30–40 år siden tvangslidelse (OCD) ble betraktet som en lidelse med svært dårlig prognose. I dag har man effektive behandlingsformer, også rettet mot barn og unge. Etter en kort introduksjon av lidelsen, gir boken en innføring i: •Hvordan gjennomføre kognitiv atferdsterapi med eksponering og responsprevensjon (time for time) •Hv...

This paper describes and discusses the methodology of the Nordic long-term OCD-treatment study (NordLOTS). The purpose of this effectiveness study was to study treatment outcome of CBT, to identify CBT non- or partial responders and to investigate whether an increased number of CBT-sessions or sertraline treatment gives the best outcome; to identif...

Children and adolescents with obsessive-compulsive disorder (OCD) are at increased risk of psychotic disorders; however, the manifestations and clinical implications of psychotic vulnerability among youth with OCD remain poorly understood. To address this gap, we examined the prevalence and clinical correlates of psychotic vulnerability in youth wi...

Background Improving patient outcomes will be enhanced by understanding “what works, for whom?” enabling better matching of patients to available treatments. However, answering this “what works, for whom?” question requires sample sizes that exceed those of most individual trials. Conventional methods for combining data across trials, including agg...

Objective: Children and adolescents with obsessive-compulsive disorder (OCD) are at risk of long-term adversity, but factors influencing long-term outcomes are unclear. A general factor of psychopathology, often referred to as the p factor, captures variance shared by all mental disorders and has predicted long-term outcomes in youth with anxiety a...

Family accommodation (FA) involves the actions taken by family members, particularly parents, to accommodate a child´s obsessive–compulsive disorder (OCD) symptoms, reducing distress or impairment. This behavior may maintain compulsive and avoidant behavior, preventing corrective learning or habituation. This study aims to investigate the prevalenc...

The first aim of this study was to explore whether children with obsessive compulsive disorder (OCD) and subclinical autistic traits can be differentiated from children with OCD without these traits based on clinical OCD-related characteristics, distinct OCD symptom patterns, and type of comorbidity. The second aim was to investigate whether autist...

The present study aimed to: (a) identify latent class trajectories of OCD-related functional impairment, before, during and over three years after stepped-care treatment in children and adolescents with OCD; (b) describe these classes according to pretreatment characteristics; (c) identify predictors of trajectory class membership and (d) examine t...

A recent study identified three distinct treatment-response trajectories in pediatric OCD where higher levels of contamination symptoms predicted a limited response to cognitive-behavioral therapy (CBT). This study extends these findings by examining which specific symptoms characterize limited CBT response from baseline to 3-year follow-up, with a...

It is unknown if long-term remission for pediatric obsessive-compulsive disorder (OCD) patients is associated with post-treatment OCD symptom severity. The aim of the present study was to evaluate if post-treatment symptom severity cut-offs can discriminate remitters from non-remitters in pediatric OCD patients during three years of follow-up. All...

A recent study identified three distinct OCD treatment-response trajectories during and after treatment in a large pediatric sample, where higher levels of contamination symptoms predicted a limited response to cognitive-behavioral therapy (CBT). This study is an extension of this, examining what characterizes limited responders to CBT regarding co...

The present study aimed to investigate the long-term quality of life (QoL) in a large sample of pediatric obsessive–compulsive disorder (OCD) patients. The study included 220 pediatric OCD patients from the Nordic Long-term OCD Treatment Study (NordLOTS) who were evaluated at seven time points before, during, and after stepped-care treatment over a...

Background: Studies on child and adolescent obsessive-compulsive disorder (OCD) indicate that symptom severity is similar across age, but significant age differences of symptom profile and comorbid disorders have been observed. These earlier studies have yielded mixed results, are methodologically heterogenous and tend to have fairly small sample...

Background Obsessive-compulsive disorder (OCD) in children can lead to a huge burden on the concerned patients and their family members. While successful state-of-the art cognitive behavioral interventions exist, there is still a lack of available experts for treatment at home, where most symptoms manifest. Internet-based cognitive behavioral thera...

Sexual obsessions occur in pediatric and adult OCD including thoughts about sexual acts with family members, sexually inappropriate behavior, or homosexual orientation. They may remain undiagnosed because of embarrassment to report thoughts that are perceived as unacceptable. Prevalence studies of sexual obsessions in pediatric populations are rare...

The aims of the study were to estimate the prevalence of body dysmorphic symptoms in a sample of children and adolescents with obsessive-compulsive disorder, possible clinical correlates and whether BDD symptoms predict poorer treatment outcomes after cognitive behavioral therapy. The study included 269 children and adolescents with OCD, aged 7–17...

Cognitive behavioral therapy (CBT) is the first choice of treatment of obsessive–compulsive disorder (OCD) in children and adolescents. However, there is often a lack of access to appropriate treatment close to the home of the patients. An internet-based CBT via videoconferencing could facilitate access to state-of-the-art treatment even in remote...

Studies on child and adolescent obsessive-compulsive disorder (OCD) indicate that symptom severity is similar across age, but significant age differences of symptom profile and comorbid disorders have been observed. The current study examines these differences in one of the largest samples to date, and the first sample outside of an English-speakin...

Objective Standard assessment of pediatric obsessive-compulsive disorder (OCD) patients includes ratings of insight, avoidance, indecisiveness, sense of responsibility, pervasive slowness, pathological doubting, and obsession-free intervals. The present study aims to identify pre-treatment associations of these clinical features to symptom severity...

Background: First-line treatments for pediatric obsessive-compulsive disorder (OCD) include exposure-based cognitive-behavioral therapy (CBT) and selective serotonin reuptake inhibitors (SSRIs). No studies have thus far identified distinct classes and associated predictors of long-term symptom severity during and after treatment. Yet, these could...

Objective: Identifying factors associated with early treatment response is important, because it can help allocate limited resources in psychiatric care more appropriately. This study examined baseline characteristics of participants with early response to exposure-based cognitive behavior therapy (CBT) for pediatric obsessive-compulsive disorder...

Hoarding, common in pediatric obsessive–compulsive disorder (OCD), has specific clinical correlates and is associated with poor prognosis. However, there are few studies of hoarding in pediatric OCD. This study estimates the occurrence of hoarding symptoms in a sample of children and adolescents with OCD, investigating possible differences in demog...

The presence of comorbid conditions associated with paediatric obsessive–compulsive disorder (OCD) is reported to range from 50 to 80% and to have an impact on treatment outcome. Accurate identification of comorbid psychiatric disorders is necessary in order to provide personalised care. Reliable and valid diagnostic interviews are essential in the...

Objective: This study evaluates the long-term outcomes of a stepped care treatment for pediatric obsessive-compulsive disorder (OCD) and investigates whether response to first step cognitive- behavioral therapy (CBT) is an important indicator of three-year outcomes. Method: This study is a part of the Nordic Long-term OCD Treatment study (NordLO...

Our aims were to examine: (1) classes of comorbid disorders in a sample of children and adolescents with Obsessive-Compulsive Disorder (OCD), (2) how these classes relate to obsessive-compulsive symptom dimensions, and (3) the extent to which obsessive-compulsive symptom dimensions predict Cognitive-Behavioral Therapy (CBT) outcome. Participants (N...

Objective This study describes one-year treatment outcomes from a large sample of cognitive-behavioral therapy (CBT) responders, investigates age as a possible moderator of these treatment outcomes, and evaluates clinical relapse at the one-year follow-up. Method This study is the planned follow-up to the Nordic Long-term OCD [obsessive-compulsive...

Some studies have shown that children and adolescents with obsessive-compulsive disorder (OCD) and co-morbid tics differ from those without co-morbid tics in terms of several demographic and clinical characteristics. However, not all studies have confirmed these differences. This study examined children and adolescents with OCD and with possible or...

The underlying structure of obsessive-compulsive disorder (OCD) remains to be confirmed in child and adolescent populations. In this paper we report the first factor analytic study of individual OCD items from Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS). OCD symptoms were assessed using the CY-BOCS symptom checklist in a sample of 85...

Objective To identify both responders and remitters, at the half-way point (week 7) to exposure-based CBTfor pediatric OCD. Furthermore, evaluate the stability of the improvements, by examining both week 7 and week 14 (post-treatment)response and remission. Method 269 children and adolescents, mean age 12.8, 51.3% female with a DSM-IV diagnosis of...

Objective To identify both responders and remitters, at the half-way point (week 7) to exposure-based CBTfor pediatric OCD. Furthermore, evaluate the stability of the improvements, by examining both week 7 and week 14 (post-treatment)response and remission. Method 269 children and adolescents, mean age 12.8, 51.3% female with a DSM-IV diagnosis...

To identify responders and remitters, at the half-way point (week 7) to exposure-based CBT.

Already empirically-supported treatments can be enhanced by the use of new technologies. The next part of the symposium will discuss the use of new technologies in treating OCD. We will use a planned study as an example to discuss how well-established CBT-principles can be enhanced by the use of technology. Using web-based technologies and apps, th...

Obsessive compulsive disorder (OCD) is a neuropsychiatric entity. The aim was to explore the association of familial OCD, tics, anxiety, and depression with the presentation of OCD in offspring. To our knowledge, this is the first study examining the association of other familial psychiatric disorders with OCD in offspring.A total of 198 families r...

Objective: To investigate the effectiveness of sertraline (SRT) versus continued CBT in children and adolescents that did not respond to an initial course of CBT and to evaluate whether the presence of tic disorder is negatively associated with SRT outcomes. Method: The study was a part of the Nordic Long-Term OCD Treatment Study (NordLOTS). Intent...

Title: Predictors of treatment outcome and attrition in cognitive behavior therapy for pediatric anxiety disorders. This symposium is based on three large multi-center treatments study for children and adolescent with anxiety disorders in Norway. We will present data on treatment outcome and attrition in cognitive behavior therapy (CBT) for pediat...

Abstract Objective: To identify predictors of treatment response in a large sample of pediatric participants with obsessive-compulsive disorder (OCD). The Nordic long-term OCD treatment study (NordLOTS), included 269 children and adolescents, 7 to 17 years of age with a DSM-IV diagnosis of OCD. Outcomes were evaluated after 14 weekly sessions of ex...

Our aims were to investigate the effectiveness of sertraline (SRT) versus continued CBT in children and adolescents that did not respond to an initial course of CBT and to evaluate whether the presence of tic disorder is negatively associated with SRT outcomes, but not with continued CBT.The study was a part of the Nordic Long-Term OCD Treatment St...

The purpose of this study was to investigate whether the presence of tic disorder is negatively associated with sertraline (SRT) outcomes, but not with continued cognitive-behavioral therapy (CBT), in a sample of youth who were unresponsive to an initial full course of CBT. In the Nordic Long-Term OCD Study, children and adolescents with OCD who we...

Research on functional impairment in obsessive-compulsive disorder (OCD) based on standardized measurement lags behind compared to its prominence in diagnostic classification systems. Our aim was to evaluate the psychometric properties of the Child Obsessive Compulsive Impact Scale – Revised (COIS-R), which is a measure of OCD-related functional im...

Expert guidelines recommend cognitive-behavior therapy (CBT) as a first-line treatment in pediatric obsessive-compulsive disorder (OCD) and the addition of selective serotonin reuptake inhibitors when CBT is not effective. However, the recommendations for CBT non-responders are not supported by empirical data. Our objective was to investigate the e...