Clinical Utility and Global Applicability of Prolonged Grief Disorder in the ICD-11 from the Perspective of Chinese and German-Speaking Health Care Professionals

The cultural supplement: A new method for assessing culturally relevant prolonged grief disorder symptoms

Background

The new diagnosis of prolonged grief disorder (PGD) is both an opportunity and a challenge for researchers, clinicians, and bereaved individuals. The latest definition of PGD includes a refreshing and novel feature: the cultural caveat, i.e., clinicians must determine that the grief presentation is more severe and of longer duration than would be expected by an individual’s culture and context. Currently, there are no guidelines on how to operationalize the cultural caveat in mental health care settings.

Method

To respond to this important demand we have developed, piloted, and tested the cultural supplement module of the International Prolonged Grief Disorder scale (IPGDS). The cultural supplement aims to provide clinicians with a catalogue of culturally relevant symptoms of grief that indicate probable PGD alongside a simple framework for cultural adaptation for use in specific clinical settings.

Results

In this short report we outline the rationale and aim of the cultural supplement and provide a summary of our latest validation studies of the IPGDS with bereaved German-speaking, Chinese and Swiss migrant individuals. We also provide a step-by-step framework for adaptation of the cultural supplement that clinicians and researchers may use when working with different cultural groups.

Conclusion

To date, this is the first PGD questionnaire based on the ICD-11, and the first to include a cultural supplement that can be adapted to different contexts and groups. This cultural supplement will provide clinicians and researchers an easy-to-use assessment tool with the aim to improve the global applicability of the ICD-11 PGD definition.

The New ICD-11 Prolonged Grief Disorder Guidelines in Japan: Findings and Implications from Key Informant Interviews

Prolonged grief disorder (PGD) is a new mental health disorder, recently introduced in the International Classification of Diseases (ICD-11), World Health Organization Classification of Diseases (WHO). The new ICD-11 guidelines reflect an emerging wave of interest in the global applicability of mental disorders. However, the selection of diagnostic core features in different cultural contexts has yet to be determined. Currently, there is debate in the field over the global applicability of these guidelines. Using semi-structured interviews with 14 key informants, we explored the acceptability of ICD-11 guidelines for PGD according to Japanese health professionals as key informants. The interviews revealed symptoms of grief possibly missing in the ICD-11 PGD guidelines including somatization and concepts such as hole in the heart. Additionally, sociocultural barriers such as stigma and beliefs about the social desirability of emotions may challenge patients' and clinicians' acceptance of the new ICD-11 criteria.

Beliefs About Causes and Cures of Prolonged Grief Disorder Among Arab and Sub-Saharan African Refugees

Background

Many refugees have experienced the death of a loved one under traumatic circumstances. Accordingly, the prevalence of Prolonged Grief Disorder (PGD) among refugees is high. Culture-specific symptoms of PGD have been described previously, but beliefs about causes and cures of PGD among refugees remain unknown. We therefore aimed at identifying illness beliefs and treatment expectations regarding PGD among refugees.

Method

We focused on refugees from Arab countries (n = 14) and from Sub-Sahara Africa (n = 9) and applied qualitative and quantitative methods. In a semi-structured interview, participants first answered questions about assumed causes and potential cures for prototypical PGD symptoms according to ICD-11 that were presented in a vignette as representatives of their own culture. In the quantitative part, they completed the Cause Subscale of the Illness Perception Questionnaire (IPQ-R) that included additional culture-specific items. Interviews were analyzed with Qualitative Content Analysis.

Results

In both groups of refugees, PGD symptoms were predominantly attributed to a close relationship to the deceased, lack of social support, personal vulnerabilities, and circumstances of the death. Participants also named a number of flight-related causes (e.g., inability to perform or participate in rituals, feeling isolated in the host country). None of the participants attributed PGD symptoms to supernatural causes. Descriptive analyses of responses on the IPQ-R indicated that participants predominantly attributed PGD symptoms to psychological causes. Participants believed that PGD can be cured and predominantly mentioned social and religious support. Psychological help was only mentioned by a minority of participants. In both groups, participants emphasized that a therapist must be familiar with the patient's culture and rituals. Participants also mentioned stigma associated with seeking psychological help.

Conclusion

Results suggest specific beliefs of refugees regarding causes and cures of PGD as well as similarities with Western conceptualizations. A culture-sensitive approach to the treatment of PGD in refugees that can include knowledge of culture-specific rituals and incorporating religious beliefs as well as decreasing stigma and increasing mental health literacy seem important. The study is limited by its focus on only two groups of refugees and its small sample size.

Examination of the New ICD-11 Prolonged Grief Disorder Guidelines Across Five International Samples

Background

Prolonged grief disorder (PGD) is a new disorder included in the 11th edition of the International classification of diseases (ICD-11). An important remit of the new ICD-11 is the global applicability of the mental health disorder guidelines or definitions. Although previous definitions and descriptions of disordered grief have been assessed worldwide, this new definition has not yet been systematically validated.

Method

Here we assess the validity and applicability of core items of the ICD-11 PGD across five international samples of bereaved persons from Switzerland (N = 214), China (N = 325); Israel (N = 544), Portugal (N = 218) and Ireland (N = 830).

Results

The results confirm that variation in the diagnostic algorithm for PGD can greatly impact the rates of disorder within and between international samples. Different predictors of PGD severity may be related to sample differences. Finally, a threshold for diagnosis of clinically relevant PGD symptoms using a new scale, the International Prolonged Grief Disorder Scale (IPGDS), in three samples was confirmed.

Conclusions

Although this study was limited by lack of questionnaire data points across all five samples, the findings for the diagnostic threshold and algorithm iterations have implications for clinical use of the new ICD-11 PGD criteria worldwide.

DSM-5-TR prolonged grief disorder and DSM-5 posttraumatic stress disorder are related, yet distinct: confirmatory factor analyses in traumatically bereaved people

BACKGROUND

Prolonged grief disorder (PGD) is newly included in the text revision of the DSM-5 (DSM-5-TR). So far, it is unknown if DSM-5-TR PGD is distinguishable from bereavement-related posttraumatic stress disorder (PTSD). Prior research examining the distinctiveness of PTSD and pathological grief focused on non-traumatic loss samples, used outdated conceptualizations of grief disorders, and has provided mixed results.

OBJECTIVE

In a large sample of traumatically bereaved people, we first evaluated the factor structure of PTSD and PGD separately and then evaluated the factor structure when combining PTSD and PGD symptoms to examine the distinctiveness between the two syndromes.

METHODS

Self-reported data were used from 468 people bereaved due to the MH17 plane disaster (N = 200) or a traffic accident (N = 268). The 10 DSM-5-TR PGD symptoms were assessed with the Traumatic Grief Inventory-Self Report Plus (TGI-SR+). The 20-item Posttraumatic Stress Disorder Checklist for DSM-5 (PCL-5) was used to tap PTSD symptoms. Confirmatory factor analyses were conducted.

RESULTS

For PTSD, a seven factor, so-called 'Hybrid' model yielded the best fit. For PGD, a univariate factor model fits the data well. A combined model with PGD items loading on one factor and PTSD items on seven factors (associations between PGD and PTSD subscales r ≥ .50 and ≤.71), plus a higher-order factor (i.e. PTSD factors on a higher-order PTSD factor) (association between higher-order PTSD factor and PGD factor r = .82) exhibited a better fit than a model with all PGD and PTSD symptom loading on a single factor or two factors (i.e. one for PGD and one for PTSD).

CONCLUSIONS

This is the first study examining the factor structure of DSM-5-TR PGD and DSM-5 PTSD in people confronted with a traumatic loss. The findings provide support that PGD constitutes a syndrome distinguishable from, yet related with, PTSD.

Cross-cultural generalizability of the ICD-11 PGD symptom network: Identification of central symptoms and culturally specific items across German-speaking and Chinese bereaved

BACKGROUND

Prolonged grief disorder (PGD) is a newcomer to psychopathology and the new ICD-11 diagnostic criteria are conceptualized with an eye towards global applicability. Yet, previous network studies have not used official ICD-11 criteria nor tested whether network structures generalize across cultural groups even though much current research relies on ICD-11 PGD criteria.

METHODS

To overcome these limitations, the present study used data from 539 German-speaking (n = 214) and Chinese (n = 325) bereaved individuals to investigate similarities and differences in network structures of ICD-11 PGD criteria. In addition, network structures were investigated for an expanded supplementary questionnaire of culturally-bound grief symptoms hypothesized to be of relevance in each cultural context.

RESULTS

Results suggested both similarities and differences in network structures between the two samples. Across cultural groups, intense feelings of sorrow and inability to experience joy or satisfaction since the death emerged as most central symptoms. Compared to the standard PGD network, the expanded network showed a better average predictability for Chinese participants, but no improvement for the German-speaking context. Unhealthy behavior change was the most central symptom for Chinese bereaved when additional grief symptoms were included.

CONCLUSIONS

Results of the present study suggest there are culturally-bound symptoms of grief which are not included in the current ICD-11 PGD criteria. These findings provide areas of special clinical attention concerning screening and treatment and present a first step towards a more cultural-sensitive understanding of grief.

CLINICAL TRIALS

NCT03568955.