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Loss-adaptation has been described as being characterized by 'waves of grief', which may result in a Prolonged Grief Disorder (PGD). Although this assumption about the fluctuating nature of grief is supported by theoretical work, it is not (yet) supported by empirical work. We are the first to explore to what extent PGD reactions fluctuate in everyday life and whether fluctuations in PGD reactions are related to overall PGD levels using experience sampling methodology (ESM). Data from 38 bereaved individuals (74% women, on average 6 years post-loss, 47% lost a parent) were analyzed. For two weeks, five times per day, participants reported on the severity of 11 PGD reactions in the past three hours (ESM-PGD). At baseline, overall PGD severity (B-PGD) in the past two weeks was assessed with telephone-interviews using the Traumatic Grief Inventory–Clinician Administered. Root Mean Square of Successive Differences (RMSSD) were calculated to reflect fluctuations in ESM-PGD. Spearman correlations between RMSSD values of the 11 ESM-PGD reactions and B-PGD scores were computed. Mean B-PGD scores were below the clinical cut-off. Some fluctuations in ESM-PGD reactions were found, as indicated by varying RMSSD values, but also floor effects were detected. B-PGD levels were related to RMSSD values for ESM-PGD (ρ between 0.37 and 0.68, all p <.05; and between 0.36 and 0.63 after removal of floor effects). We found that (some) ESM-PGD reactions fluctuated in everyday life. This may offer new theoretical insights into loss-adaptation, which may result in optimizing PGD treatment. [ABSTRACT FROM AUTHOR]

Background: Prolonged grief disorder (PGD) has been included in the International Classification of Diseases (ICD-11) and the Diagnostic and Statistical Manual of Mental Disorders 5 Text Revision (DSM-5-TR). Loss-related avoidance behavior perpetuates grief and effective interventions for prolonged grief symptoms target such avoidance behavior. Yet, behaviors characterized by approach of loss-related cues (i.e. rumination, yearning, proximity seeking) are also implicated in prolonged grief reactions. Objective: To solve this paradox, we will test the Approach Avoidance Processing Hypothesis, which holds that loss-related approach and avoidance behaviors co-occur in PGD, using latent class analyses (LCA). Methods: Two-hundred eighty-eight bereaved adults (92% female) completed questionnaires assessing loss-related approach behaviors (rumination, yearning, proximity seeking), loss-related avoidance behaviors (anxious avoidance, experiential avoidance) and ICD-11 and DSM-5-TR prolonged grief symptoms. Results: LCA demonstrated the best fit for a three-class solution comprising a low approach/low avoidance class (n = 98, 34%), a high approach/low avoidance class (n = 79, 27%), and a high approach/high avoidance class (n = 111, 39%). The latter class showed significantly higher prolonged grief symptom levels and higher odds of probable PGD compared to the other classes. Conclusions: Co-occurrence of loss-related approach and avoidance appears characteristic to prolonged grief reactions. Distinguishing bereaved people with these behavioral patterns from those solely experiencing loss-related approach behaviors may improve the efficacy of PGD therapies. A latent class analysis of bereaved adults showed high approach/high avoidance, high approach/low avoidance and low approach/low avoidance classes. The high approach/high avoidance class showed highest prolonged grief symptoms and higher odds of probable prolonged grief disorder. Co-occurrence of loss-related approach and avoidance appears to characterize prolonged grief. [ABSTRACT FROM AUTHOR]

Background: Losing a parent or spouse in adulthood may result in prolonged grief disorder (PGD) symptoms. PGD levels in parents may affect PGD levels in their adult offspring and the other way around. However, research on transmission of PGD in parent–child dyads is lacking. Consequently, we aimed to examine temporal associations between PGD levels in parent and adult children. Methods: In doing so, we analyzed longitudinal self-report data on PGD levels (using the PG-13) assessed at 2, 11, 18, and 26 months after loss in 257 adult parent–child dyads from Denmark. Cross-lagged panel modeling was used for data-analyses. Results: Changes in PGD levels in parents significantly predicted PGD levels in adult children, but not vice versa. Small through moderate cross-lagged effects (β = 0.05 through 0.07) were found for PGD levels in parents predicting PGD levels in adult children at a subsequent time-point. These cross-lagged effects were found while taking into account the association between PGD levels in parents and adult children at the same time-point as well as the associations between the same construct over time and relevant covariates. Conclusions: Pending replication of these findings in clinical samples and younger families, our findings offer tentative support for expanding our focus in research and treatment of PGD from the individual to the family level. [ABSTRACT FROM AUTHOR]

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. 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. 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. 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). 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. This is the first factor analytic study on PGD and PTSD after traumatic loss. PTSD and PGD factors are related, but distinguishable. DSM-5-TR PGD is distinct from DSM-5 PTSD. [ABSTRACT FROM AUTHOR]