Jos de Keijser

ORCID: 0000-0003-1229-3042
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About
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Research Areas
  • Grief, Bereavement, and Mental Health
  • Migration, Health and Trauma
  • Posttraumatic Stress Disorder Research
  • Suicide and Self-Harm Studies
  • Palliative Care and End-of-Life Issues
  • Homelessness and Social Issues
  • Mental Health Treatment and Access
  • Homicide, Infanticide, and Child Abuse
  • Child and Adolescent Psychosocial and Emotional Development
  • Psychiatric care and mental health services
  • Psychotherapy Techniques and Applications
  • Maternal Mental Health During Pregnancy and Postpartum
  • Health Promotion and Cardiovascular Prevention
  • Health Policy Implementation Science
  • Dutch Social and Cultural Studies
  • Criminal Law and Evidence
  • Mental Health and Patient Involvement
  • Child Abuse and Trauma
  • Dementia and Cognitive Impairment Research
  • Emergency and Acute Care Studies
  • Trauma and Emergency Care Studies
  • Traumatic Brain Injury Research
  • Resilience and Mental Health
  • Forgiveness and Related Behaviors
  • Geriatric Care and Nursing Homes

University of Groningen
2015-2024

GGZ Friesland
2003-2020

Postmaster Psychologie Opleidingen
2020

Western Mindanao State University
2020

Arq Psychotrauma Expert Group
2018

Utrecht University
1991-2018

Few studies have examined treatments for complicated grief--a debilitating condition that can develop after the loss of a loved one. This study compared effectiveness cognitive-behavioral therapy with nonspecific treatment supportive counseling (SC). Using minimization method, 54 mourners clinically significant levels grief were allocated to 1 3 conditions: (a) 6 sessions cognitive restructuring (CR) and exposure (ET; CR + ET), (b) in which these interventions applied reversed order (ET CR),...

10.1037/0022-006x.75.2.277 article EN Journal of Consulting and Clinical Psychology 2007-01-01

Background Previous latent trajectory studies in adult bereaved people have identified individual differences reactions postloss. However, prior findings may not reflect the complete picture of distress postloss, because they were focused on depression symptoms following nonviolent death. We examined trajectories symptom-levels persistent complex bereavement disorder (PCBD), depression, and posttraumatic stress (PTSD) a disaster-bereaved sample. also investigated associations among these...

10.1002/da.22850 article EN Depression and Anxiety 2018-10-19

The Traumatic Grief Inventory Self-Report version (TGI-SR) is an 18-item self-report measure. It was designed to assess symptoms of Persistent Complex Bereavement Disorder (PCBD) included in Diagnostic and Statistical Manual Mental Disorders (DSM)-5 Prolonged (PGD) proposed by international group experts grief. research this article used data from a bereaved patient sample people who lost loved ones the Ukrainian airplane crash July 2014. Findings indicated that TGI-SR reliable valid tool...

10.1080/07481187.2018.1480546 article EN Death Studies 2018-07-17

When grief reactions after bereavement are so intense that they impair daily functioning, a diagnosis of disturbed may apply. Slightly differing criteria-sets for included in the ICD-11, DSM-5, and its forthcoming text revision, DSM-5-TR. We examined psychometric properties new self-report measure, 22-item Traumatic Grief Inventory-Self Report Plus (TGI-SR+), assesses these criteria sets Persistent Complex Bereavement Disorder (PCBD) as per Prolonged (PGD) defined ICD-11 DSM-5-TR.We the: i)...

10.1016/j.comppsych.2021.152281 article EN cc-by Comprehensive Psychiatry 2021-10-21

This randomized-waitlist controlled trial is the first study examining short-term effects of a self-guided online grief-specific cognitive behavioral therapy (CBT) in reducing early persistent complex bereavement disorder (PCBD), posttraumatic stress (PTSD), and depression symptoms adults bereaved during COVID-19 pandemic.Sixty-five Dutch adults, at least three months earlier pandemic, with clinically-relevant PCBD, PTSD, and/or symptoms, were allocated to treatment (n = 32) or waitlist...

10.1016/j.brat.2023.104286 article EN cc-by Behaviour Research and Therapy 2023-03-05

Abstract The psychometric properties of the Dutch version Inventory Traumatic Grief (ITG) were investigated in two studies with bereaved adults who had suffered loss a first-degree relative. In Study 1, exploratory factor analysis indicated that items ITG clustered together into one underlying factor. addition, internal consistency and its short-term temporal stability found to be high. 2 it was exhibited adequate discriminative, concurrent, construct validity. Furthermore, an cutoff score...

10.1080/07481180302889 article EN Death Studies 2003-04-01

Earlier studies have shown that symptoms of traumatic grief are distinct from those bereavement-related depression and anxiety. This study was an attempt to replicate finding.Data were derived 103 patients. Traumatic measured with the Inventory Grief. Depression anxiety Symptom Checklist. The distinctiveness three symptom clusters determined principal axis factoring.Symptoms grief, depression, clustered together in factors.These results confirm previous finding a distinction between

10.1176/appi.ajp.160.7.1339 article EN American Journal of Psychiatry 2003-06-29

This article describes an investigation of emotion‐focused versus problem‐focused intervention for widows ( N = 23) and widowers who were suffering elevated levels distress 11 months after their loss. They randomly assigned to condition improvement (on the General Health Questionnaire) was compared with non‐intervention controls 59). Two alternative hypotheses considered: (1) men, since they focus less on emotions, would benefit from counselling, while women, focusing more intervention; (2)...

10.1111/j.2044-8260.1997.tb01231.x article EN British Journal of Clinical Psychology 1997-02-01

Chronic dysfunction after complicated grief is not rare and emphasizes the need to identify bereaved individuals at risk. Three months following bereavement, self‐reported psychiatric general health of 153 relatives 74 suicides was worse than 70 39 natural deaths. Moreover, felt for professional help higher among former, even adjustment expectedness death, sociodemographic differences, relatives'/spouses' neuroticism. This suggests that suicide‐bereaved may constitute a high‐risk group...

10.1521/suli.2006.36.4.418 article EN Suicide and Life-Threatening Behavior 2006-08-01

Background: Hundreds of individuals lost one or more significant others in the MH17 plane crash 2014 Ukraine. The current study is first to explore subgroups disaster-bereaved based on presence psychopathology clusters. This may inform development diagnostic instruments and tailored interventions.Objective: Aims were examine (1) prolonged grief disorder (PGD), major depressive (MDD), posttraumatic stress (PTSD) symptom clusters (2) associations between class membership, disaster-related...

10.1080/20008198.2017.1298311 article EN cc-by European journal of psychotraumatology 2017-01-01

Research has shown that violent losses lead to more severe emotional distress than do nonviolent losses. Little is known about the psychological mechanisms underlying debilitating impact of loss. In current study, authors used self-reported data 496 bereaved individuals, in last 3 years, examine role seven cognitive-behavioral variables mediating loss: (a) a sense "unrealness" irreversibility separation, negative cognitions (b) self, (c) life, (d) future, and (e) catastrophic...

10.1037/tra0000018 article EN Psychological Trauma Theory Research Practice and Policy 2014-12-21

Background: Randomized studies examining the effect of training mental health professionals in suicide prevention guidelines are scarce.We assessed whether benefited from an e-learning supported Train-the-Trainer programme aimed at application Dutch multidisciplinary guideline.Methods: 45 psychiatric departments all over Netherlands were clustered pairs and randomized.In experimental condition, staff was trained by peers with elearning programme.Guideline adherence individual measured means...

10.1016/j.jad.2015.01.046 article EN cc-by-nc-nd Journal of Affective Disorders 2015-01-24

<b>Objective</b> To examine the effectiveness of a family based grief counselling programme to prevent complicated among first degree relatives and spouses someone who had committed suicide. <b>Design</b> Cluster randomised controlled trial with follow-up at 13 months after <b>Setting</b> General practices in Netherlands. <b>Participants</b> 122 70 people suicide; 39 families (68 participants) were allocated intervention, 31 (54 control. <b>Intervention</b> A based, cognitive behaviour four...

10.1136/bmj.39161.457431.55 article EN BMJ 2007-04-20

Background: The Internet is used increasingly for both suicide research and prevention. To optimize online assessment of suicidal patients, there a need short, good-quality tools to assess elevated risk future behavior. Computer adaptive testing (CAT) can be reduce response burden improve accuracy, make the available pencil-and-paper more appropriate administration.

10.2196/jmir.3511 article EN cc-by Journal of Medical Internet Research 2014-09-11

In mental health care, both clinical and scientific decisions are based on within-subject comparisons of test scores the same self-report questionnaire at different points in time. To establish validity score over time, longitudinal measurement invariance should be established. The current study tested whether 19 item Beck Scale for Suicide Ideation (BSS) is invariant (MI) As first five items scale often used to screen presence suicidal thoughts, we also a model consisting only items....

10.1016/j.psychres.2014.11.075 article EN cc-by-nc-nd Psychiatry Research 2014-12-23

Abstract Bereavement is generally regarded as one of the most stressful events can encounter. Yet, bereavement research and study post-traumatic stress seem to be mainly developing along separate lines. Strictly speaking, disorder only occur after encountering outside range normal human experience. Thus, by definition does not meet criteria PTSD. The question remains, however, whether this development formal exclusion justified empirical research. To address question, data are presented 128...

10.1080/08917779108248776 article EN Anxiety Research 1991-10-01

Randomised studies examining the effect on patients of training professionals in adherence to suicide guidelines are scarce.To assess whether benefited from guidelines.In total 45 psychiatric departments were randomised (Dutch trial register: NTR3092). In intervention condition, all staff trained with an e-learning supported train-the-trainer programme. After intervention, assessed at admission and 3-month follow-up. Primary outcome was change ideation, Beck Scale for Suicide Ideation.For...

10.1192/bjp.bp.114.156208 article EN The British Journal of Psychiatry 2015-12-18

Background: The disappearance of a loved one is unique type loss, also termed 'ambiguous loss', which may heighten the risk for developing prolonged grief (PG), depression, and posttraumatic stress (PTS) symptoms. Little known about protective factors psychopathology among relatives missing persons. A potential factor self-compassion, referring to openness toward acceptance one's own pain, failures, inadequacies. One could reason that self-compassion associated with lower levels emotional...

10.1080/20008198.2017.1378052 article EN cc-by European journal of psychotraumatology 2017-10-16

Disturbed grief, operationalized as persistent complex bereavement disorder (PCBD), correlates with yet differs from posttraumatic stress (PTSD) and depression symptoms. However, knowledge about temporal associations among these symptoms is limited. We aimed to enhance our understanding of the etiology loss-related distress by examining PCBD, PTSD, symptom levels. Dutch people ( N = 172) who lost significant other(s) in a plane disaster completed questionnaires for 11, 22, 31, 42 months...

10.1177/2167702619858288 article EN cc-by-nc Clinical Psychological Science 2019-09-23

Cognitive behavior therapy (CBT) interventions are effective in alleviating disturbed grief. CBT is typically delivered face-to-face. Government policy during the coronavirus (COVID-19) pandemic (quarantine and social distancing) may impede access to face-to-face therapy. Psychotherapy now widely remotely. In this article, various points of attention related application for grief using telephone or videoconferencing (or video calling) services discussed. Additionally, we explore possible...

10.1080/15325024.2020.1793547 article EN cc-by-nc-nd Journal of Loss and Trauma 2020-07-31

Objective: Systematic client feedback (SCF), the regular monitoring and informing of patients' progress during therapy to patient therapist, has been found have effects on treatment outcomes varying from very positive slightly negative. Several prior studies biased by researcher allegiance or lack an independent outcome measure. The current study taken this into account aims clarify SCF in outpatient psychological treatment.Method: Outpatients (n = 1733) four centers offering brief...

10.1080/10503307.2021.2015637 article EN cc-by-nc-nd Psychotherapy Research 2021-12-23
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