Clare Killikelly

Dr. Clare Killikelly

Department of Psychology, University of Zurich, 8006 Zurich, Switzerland

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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29 December 2017 in European Journal of Psychotraumatology
Verified
Journal Article
Open access
Clare KillikellyClare Killikelly
Clare Killikelly
AMAndreas Maercker
Andreas Maercker
A new mental health disorder, prolonged grief disorder (PGD), will be included in the 11th edition of the International Classification of Diseases (ICD-11). We provide a brief overview of the historical conceptualizations of disordered grief and the previous research efforts to assess and define this condition. We describe the new ICD-11 PGD symptom criteria and how they are conceptualized in terms of the World Health Organization’s call for improved clinical utility. Finally, we review the research evidence for the clinical utility of the new ICD-11 PGD symptom structure and usability in the international arena.

20 July 2017 in JMIR mHealth and uHealth
Verified
Journal Article
Open access
Clare KillikellyClare Killikelly
Clare Killikelly
ZHZhimin He
Zhimin He
CRClare Reeder
Clare Reeder
TWTil Wykes
Til Wykes
Mobile and tablet apps, ubiquitous and pervasive computing, wearable computing and domotics for health.

1 December 2020 in Journal of Affective Disorders
Verified
Journal Article
Open access
Clare KillikellyClare Killikelly
Clare Killikelly
NZNingning Zhou
Ningning Zhou
MMMariia Merzhvynska
Mariia Merzhvynska
ESEva-Maria Stelzer
Eva-Maria Stelzer
TDTenzin Dotschung
Tenzin Dotschung
AMAndreas Maercker
Andreas Maercker
Prolonged grief disorder (PGD) is a new mental health disorder included in the WHO ICD-11 however, the operationalization of the guidelines still needs to be empirically validated, particularly in different cultural contexts. Here we provide a preliminary validation study of the new International Prolonged Grief Disorder Scale (IPGDS) that serves to be the first self-report questionnaire directly based on the ICD-11 PGD and contains culturally adapted items. In addition to core symptom items new culturally specific items were developed in two phases. Phase 1: key informant interviews with 10 German-speaking and 14 Chinese experts in grief and mental health, followed by a focus group with four bereaved German-speaking participants. Phase 2: 214 German-speaking and 325 Chinese bereaved participants completed self-report questionnaires. Phase 1 resulted in 19 potential culturally relevant items (e.g. feeling stuck in grief). Phase 2 exploratory factor analysis confirmed the one-dimensional nature of the IPGDS, additionally the 32-item scale revealed two factors (core grief and culturally specific symptoms). Psychometric analysis revealed strong internal consistency, concurrent validity and criterion validity. The German-speaking and Chinese samples significantly differed in terms of several demographic variables including age, gender and type of loss. This preliminary validity study confirms that the IPGDS is a valid and reliable measure of the new ICD-11 PGD guidelines. This is the first scale of disordered grief to contain both core items and culturally specific supplementary items and aims to improve the clinical utility of the ICD-11 narrative approach.

17 April 2025 in The Lancet
Verified
Journal Article
Closed access
Clare KillikellyClare Killikelly
Clare Killikelly
KSKirsten V Smith
Kirsten V Smith
NZNingning Zhou
Ningning Zhou
HPHolly G Prigerson
Holly G Prigerson
MOMary-Frances O'Connor
Mary-Frances O'Connor
AMAndreas Maercker
Andreas Maercker

1 February 2021 in Public Health
Verified
Journal Article
Open access
Clare KillikellyClare Killikelly
Clare Killikelly
Geert SmidGeert Smid
Geert Smid
BWB. Wagner
B. Wagner
PBP.A. Boelen
P.A. Boelen
The field of bereavement research and care is at a tipping point. The introduction of prolonged grief disorder (PGD) in the International Classification of Diseases (ICD-11) has ignited clinical interest in this new disorder, along with debate over challenges in validating and implementing these new criteria. At the same time, the global COVID-19 pandemic has launched several local and international efforts to provide urgent support and comfort for individuals and communities suffering from grief. Recently, grief experts have called for a collective response to these complicated bereavements and possible increase in PGD due to COVID-19. Here we outline a new European network that aims to unite a community of grief researchers and clinicians to provide accessible, evidence-based support particularly during times of unprecedent crisis. The Bereavement Network Europe (BNE) has been developed with two main aims. Firstly, to develop expert agreed, internationally acceptable guidelines for bereavement care through a three-tiered approach. Secondly, to provide a platform for researchers and clinicians to share knowledge, collaborate, and develop consensus protocols to facilitate the introduction of PGD to diverse stakeholders. This article outlines the current status and aims of the BNE along with the plans for upcoming network initiatives and the three-tiered bereavement care guidelines in response to the COVID-19 pandemic.

1 April 2019 in Journal of Affective Disorders
Verified
Journal Article
Closed access
Clare KillikellyClare Killikelly
Clare Killikelly
LLLouisa Lorenz
Louisa Lorenz
SBSusanna Bauer
Susanna Bauer
MMMichal Mahat-Shamir
Michal Mahat-Shamir
MBMenachem Ben-Ezra
Menachem Ben-Ezra
AMAndreas Maercker
Andreas Maercker