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Dive into the research topics where Carlijn de Roos is active.

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Featured researches published by Carlijn de Roos.


JAMA Psychiatry | 2015

Prolonged Exposure vs Eye Movement Desensitization and Reprocessing vs Waiting List for Posttraumatic Stress Disorder in Patients With a Psychotic Disorder: A Randomized Clinical Trial

David P. G. van den Berg; Paul A.J.M. de Bont; Berber M. van der Vleugel; Carlijn de Roos; Ad de Jongh; Agnes van Minnen; Mark van der Gaag

IMPORTANCE The efficacy of posttraumatic stress disorder (PTSD) treatments in psychosis has not been examined in a randomized clinical trial to our knowledge. Psychosis is an exclusion criterion in most PTSD trials. OBJECTIVE To examine the efficacy and safety of prolonged exposure (PE) therapy and eye movement desensitization and reprocessing (EMDR) therapy in patients with psychotic disorders and comorbid PTSD. DESIGN, SETTING, AND PARTICIPANTS A single-blind randomized clinical trial with 3 arms (N = 155), including PE therapy, EMDR therapy, and waiting list (WL) of 13 outpatient mental health services among patients with a lifetime psychotic disorder and current chronic PTSD. Baseline, posttreatment, and 6-month follow-up assessments were made. INTERVENTIONS Participants were randomized to receive 8 weekly 90-minute sessions of PE (n = 53), EMDR (n = 55), or WL (n = 47). Standard protocols were used, and treatment was not preceded by stabilizing psychotherapeutic interventions. MAIN OUTCOMES AND MEASURES Clinician-rated severity of PTSD symptoms, PTSD diagnosis, and full remission (on the Clinician-Administered PTSD Scale) were primary outcomes. Self-reported PTSD symptoms and posttraumatic cognitions were secondary outcomes. RESULTS Data were analyzed as intent to treat with linear mixed models and generalized estimating equations. Participants in the PE and EMDR conditions showed a greater reduction of PTSD symptoms than those in the WL condition. Between-group effect sizes were 0.78 (P < .001) in PE and 0.65 (P = .001) in EMDR. Participants in the PE condition (56.6%; odds ratio [OR], 3.41; P = .006) or the EMDR condition (60.0%; OR, 3.92; P < .001) were significantly more likely to achieve loss of diagnosis during treatment than those in the WL condition (27.7%). Participants in the PE condition (28.3%; OR, 5.79; P = .01), but not those in the EMDR condition (16.4%; OR, 2.87; P = .10), were more likely to gain full remission than those in the WL condition (6.4%). Treatment effects were maintained at the 6-month follow-up in PE and EMDR. Similar results were obtained regarding secondary outcomes. There were no differences in severe adverse events between conditions (2 in PE, 1 in EMDR, and 4 in WL). The PE therapy and EMDR therapy showed no difference in any of the outcomes and no difference in participant dropout (24.5% in PE and 20.0% in EMDR, P = .57). CONCLUSIONS AND RELEVANCE Standard PE and EMDR protocols are effective, safe, and feasible in patients with PTSD and severe psychotic disorders, including current symptoms. A priori exclusion of individuals with psychosis from evidence-based PTSD treatments may not be justifiable. TRIAL REGISTRATION isrctn.com Identifier: ISRCTN79584912.


Clinical Psychology Review | 2009

Efficacy of EMDR in children: a meta-analysis

Roos Rodenburg; Anja Benjamin; Carlijn de Roos; Ann Marie Meijer; G.J.J.M. Stams

The efficacy of eye movement desensitization and reprocessing (EMDR) in children with post-traumatic stress symptoms was meta-analytically examined from the perspective of incremental efficacy. Overall post-treatment effect size for EMDR was medium and significant (d=.56). Results indicate efficacy of EMDR when effect sizes are based on comparisons between the EMDR and the non-established trauma treatment or the no-treatment control groups, and the incremental efficacy when effect sizes are based on comparisons between the EMDR and the established (CBT) trauma treatment. The discussion focuses on the future replication of EMDR findings and further research on post-traumatic stress in children.


Depression and Anxiety | 2016

Critical analysis of the current treatment guidelines for complex PTSD in adults

Ad de Jongh; Patricia A. Resick; Lori A. Zoellner; Agnes van Minnen; Christopher W. Lee; Candice M. Monson; Edna B. Foa; Kathleen Wheeler; Erik ten Broeke; Norah C. Feeny; Sheila A. M. Rauch; Kathleen M. Chard; Kim T. Mueser; Denise M. Sloan; Mark van der Gaag; Barbara O. Rothbaum; Frank Neuner; Carlijn de Roos; Lieve M. Hehenkamp; Rita Rosner; Iva A. E. Bicanic

According to current treatment guidelines for Complex PTSD (cPTSD), psychotherapy for adults with cPTSD should start with a “stabilization phase.” This phase, focusing on teaching self‐regulation strategies, was designed to ensure that an individual would be better able to tolerate trauma‐focused treatment. The purpose of this paper is to critically evaluate the research underlying these treatment guidelines for cPTSD, and to specifically address the question as to whether a phase‐based approach is needed. As reviewed in this paper, the research supporting the need for phase‐based treatment for individuals with cPTSD is methodologically limited. Further, there is no rigorous research to support the views that: (1) a phase‐based approach is necessary for positive treatment outcomes for adults with cPTSD, (2) front‐line trauma‐focused treatments have unacceptable risks or that adults with cPTSD do not respond to them, and (3) adults with cPTSD profit significantly more from trauma‐focused treatments when preceded by a stabilization phase. The current treatment guidelines for cPTSD may therefore be too conservative, risking that patients are denied or delayed in receiving conventional evidence‐based treatments from which they might profit.


European Journal of Psychotraumatology | 2011

A randomised comparison of cognitive behavioural therapy (CBT) and eye movement desensitisation and reprocessing (EMDR) in disasterexposed children

Carlijn de Roos; Ricky Greenwald; Margien den Hollander-Gijsman; Eric Noorthoorn; Stef van Buuren; Ad de Jongh

Background : Building on previous research with disaster-exposed children and adolescents, a randomised clinical trial was performed in the treatment of trauma-related symptoms. In the current study two active treatments were compared among children in a broad age range and from a wide diversity of ethnic populations. Objective : The primary aim was to compare the effectiveness and efficiency of Cognitive Behavioural Therapy (CBT) and Eye Movement Desensitisation and Reprocessing (EMDR). Design : Children (n=52, aged 4–18) were randomly allocated to either CBT (n=26) or EMDR (n=26) in a disaster mental health after-care setting after an explosion of a fireworks factory. All children received up to four individual treatment sessions over a 4–8 week period along with up to four sessions of parent guidance. Blind assessment took place pre- and post-treatment and at 3 months follow-up on a variety of parent-rated and self-report measures of post-traumatic stress disorder symptomatology, depression, anxiety, and behaviour problems. Analyses of variance (general linear model repeated measures) were conducted on the intention-to-treat sample and the completers. Results : Both treatment approaches produced significant reductions on all measures and results were maintained at follow-up. Treatment gains of EMDR were reached in fewer sessions. Conclusion : Standardised CBT and EMDR interventions can significantly improve functioning of disaster-exposed children. For the abstract in other languages, please see Supplementary files under Reading Tools online


Psychoneuroendocrinology | 2013

Salivary cortisol and dehydroepiandrosterone sulfate in adolescent rape victims with post traumatic stress disorder.

Iva A. E. Bicanic; Riemke Postma; Gerben Sinnema; Carlijn de Roos; Miranda Olff; Floryt van Wesel; Elise M. van de Putte

BACKGROUND In chronic sexual abuse victims with post traumatic stress disorder (PTSD), the hypothalamic pituitary adrenal (HPA) axis can be dysregulated. In single rape victims, PTSD symptoms are hypothesized to function as a chronic stressor leading to similar HPA-axis dysregulation. The objective of the current study was to assess HPA-axis functioning in female adolescents with rape-related PTSD, but no prior sexual trauma, in comparison to non-victimized controls. METHOD Salivary cortisol and dehydroepiandrosterone sulfate (DHEAS) were measured in 52 female adolescent rape victims with PTSD and 37 healthy adolescents at 0, 15, 30, 45 and 60 min after awakening, both under basal conditions and after 0.5 mg dexamethasone administration. RESULTS Compared to age-matched controls, adolescent rape victims with PTSD showed significantly reduced cortisol and DHEAS levels. No group differences for the effect of dexamethasone suppression were found. Both the event of rape and PTSD diagnosis, and not factors such as sleep duration, smoking, education or oral contraceptives, accounted for the neuroendocrine differences between rape victims and controls. CONCLUSIONS The results show evidence for a dysregulated HPA-axis in female adolescent victims of single sexual trauma with PTSD. The finding of hypocortisolism is consistent with endocrine dysfunctioning in chronic sexual abuse victims and may have clinical implications with regard to treatment possibilities.


Journal of Traumatic Stress | 2014

Characteristics of the Children's Revised Impact of Event Scale in a clinically referred Dutch sample

Eva Verlinden; Els P. M. van Meijel; Brent C. Opmeer; Renée Beer; Carlijn de Roos; Iva A. E. Bicanic; F. Lamers-Winkelman; Miranda Olff; Frits Boer; Ramón J. L. Lindauer

Early identification of posttraumatic stress disorder (PTSD) in children is important to offer them appropriate and timely treatment. The Childrens Revised Impact of Event Scale (CRIES) is a brief self-report measure designed to screen children for PTSD. Research regarding the diagnostic validity of the CRIES is still insufficient, has been restricted to specific populations, and sample sizes have often been small. This study evaluated the reliability and validity of the 8-item (CRIES-8) and 13-item (CRIES-13) versions of the CRIES in a large clinically referred sample. The measure was completed by 395 Dutch children (7-18 years) who had experienced a wide variety of traumatic events. PTSD was assessed using the Anxiety Disorders Interview Schedule for DSM-IV: Child and Parent version. A cutoff score of 17 on the CRIES-8 and 30 on the CRIES-13 emerged as the best balance between sensitivity and specificity, and correctly classified 78%-81% of all children. The CRIES-13 outperformed the CRIES-8, in that the overall efficiency of the CRIES-13 was slightly superior (.81 and .78, respectively). The CRIES appears to be a reliable and valid measure, which gives clinicians a brief and user-friendly instrument to identify children who may have PTSD and offer them appropriate and timely treatment.


European Journal of Psychotraumatology | 2013

A cross-cultural validation of the Clinician Administered PTSD Scale for Children and Adolescents in a Dutch population

Julia Diehle; Carlijn de Roos; Frits Boer; Ramón J. L. Lindauer

Background Trauma-focused interventions for children could be administered more efficiently and effectively if posttraumatic stress disorder (PTSD) and related symptoms were first investigated by a reliable and valid instrument. The Clinician Administered PTSD Scale for Children and Adolescents (CAPS-CA) is the gold standard for the assessment of PTSD. Until now no cross-cultural validation study has been published in an English peer-reviewed journal. Objective This study aimed at the cross-cultural validation of the Dutch CAPS-CA. Method A total of 112 children between the age of 8 and 18 were recruited at two trauma centers. Children were interviewed with the CAPS-CA and the Anxiety Disorders Interview Schedule Child (ADIS-C) version, and each filled out the Childrens Revised Impact of Events Scale (CRIES-13), the Revised Child Anxiety and Depression Scale (RCADS), and the Strength and Difficulties Questionnaire (SDQ). One caretaker of each child was also interviewed by means of the ADIS Parent (ADIS-P) version and filled out the RCADS and SDQ. Results The Dutch CAPS-CA showed as good internal consistency, inter-rater reliability, convergent and divergent validity, and concurrent validity as the original English version. Similar to the original version, we found better psychometric properties in terms of internal consistency and convergent validity for children 13 years and older than for children younger than 13 years. Conclusions The Dutch CAPS-CA is as reliable and valid as the original English version.


Journal of Emdr Practice and Research | 2009

EMDR in the Treatment of Medically Unexplained Symptoms: A Systematic Review

Yanda R. van Rood; Carlijn de Roos

Journal of EMDR Practice and Research, Volume 3, Number 4, 2009


European Journal of Psychotraumatology | 2015

Enhanced screening for posttraumatic stress disorder and comorbid diagnoses in children and adolescents

Eva Verlinden; Brent C. Opmeer; Els P. M. van Meijel; Renée Beer; Carlijn de Roos; Iva A. E. Bicanic; F. Lamers-Winkelman; Miranda Olff; Frits Boer; Ramón J. L. Lindauer

Background Posttraumatic stress disorder (PTSD) can be a debilitating disorder and often co-occurs with other psychiatric disorders, such as mood, behavioral, and anxiety disorders. Early identification of PTSD and psychiatric comorbidity is highly relevant in order to offer children appropriate and timely treatment. The Childrens Revised Impact of Event Scale (CRIES-13) is a reliable and valid self-report measure designed to screen children for PTSD. However, this measure is not useful as a screen for psychiatric comorbidity in children with probable PTSD. Objective This study evaluated the screening accuracy of the CRIES-Plus, that is, the CRIES-13 combined with 12 additional items to detect psychiatric comorbidity. Method The CRIES-Plus was completed by 398 Dutch children (7–18 years) exposed to various traumatic events. Psychiatric diagnoses were assessed using the Anxiety Disorders Interview Schedule for DSM-IV: Child version. Results Six additional items were significantly associated with mood disorders, three items were associated with behavioral disorders, and five items with anxiety disorders. Additional items associated with mood and anxiety disorders demonstrated good discriminatory ability, with cut-off scores of ≥14 and ≥10, respectively. Items associated with behavioral disorders had poor to fair discriminatory ability, with no clear cut-off point. Conclusions Our findings support the use of the CRIES-Plus to screen for PTSD and comorbid disorders which may help clinicians in assigning appropriate follow-up diagnostic and clinical care.


European Journal of Psychotraumatology | 2015

The Dutch version of the Child Posttraumatic Cognitions Inventory: validation in a clinical sample and a school sample

Julia Diehle; Carlijn de Roos; Richard Meiser-Stedman; Frits Boer; Ramón J. L. Lindauer

Background With the inclusion of trauma-related cognitions in the DSM-5 criteria for posttraumatic stress disorder (PTSD), the assessment of these cognitions has become essential. Therefore, valid tools for the assessment of these cognitions are warranted. Objective The current study aimed at validating the Dutch version of the Child Posttraumatic Cognitions Inventory (CPTCI). Method We included children aged 8–19 years in our study and assessed the factor structure, reliability and validity of the CPTCI in a clinical sample (n=184) and a school sample (n=318). Results Our results supported the two-factor structure of the CPTCI and showed good internal consistency for the total scale and the two subscales. We found significant positive correlations between the CPTCI and measures of PTSD, depression, and anxiety disorder. The CPTCI correlated negatively with a measure of quality of life. Furthermore, we found significantly higher scores in the clinical sample than in the school sample. For children who received treatment, we found that a decrease in CPTCI scores was accompanied by a decrease in posttraumatic stress symptoms and comorbid problems indicating that the CPTCI is able to detect treatment effects. Conclusion Overall, our results suggest that the Dutch CPTCI is a reliable and valid instrument.

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Agnes van Minnen

Radboud University Nijmegen

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Frits Boer

University of Amsterdam

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Renée Beer

University of Amsterdam

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