Prolonged Grief Disorder in ICD-11 and DSM-5-TR: Factor structure, and psychosocial and loss-related correlates in a sample of widowed persons. / Zespól zaloby przedluzonej w ICD-11 i DSM-5-TR: struktura czynnikowa oraz korelaty socjodemograficzne i zwiazane ze strata w próbie osób owdowialych.

OBJECTIVES: This study sought to determine whether the symptoms of prolonged grief disorder (PGD) according to ICD-11 and DSM-5-TR have a unifactorial structure. Second, we sought to determine the sociodemographic and loss-related correlates of PGD symptom severity according to ICD-11 and DSM-5-TR. METHODS: People who had lost a spouse (N = 144) in the past six months were examined using the Polish versions of the Prolonged Grief Disorder-13 scale (PG-13) and Inventory of Complicated Grief (ICG). Selected PG-13 and ICG items were included in the analyses to cover the PGD criteria according to ICD-11 and DSM-5-TR. RESULTS: Confirmatory factor analyses supported the one-dimensional structure of both sets of symptoms of the disorder. Briefer time since loss and loss due to an accident were associated with PGD symptom severity according to both ICD-11 and DSM-5-TR. CONCLUSIONS: PGD is a one-dimensional and internally consistent psychopathological syndrome. Widows and widowers who have recently lost their spouse due to an accident may be at especially heightened risk of developing severe levels of PGD symptoms.

The Quality of Interpersonal Relationships, Intrusive and Deliberate Rumination and Adjustment to the Death of a Spouse.

The aim of the presented study was to gain a better understanding of relationships between the pre-loss quality of marriage, global attachment style, rumination, the severity of complicated grief and the level of posttraumatic growth among widowed individuals. After the researchers obtained the consent of the ethics board to conduct the study, they examined widowed individuals (n = 152) using the Experiences in Close Relationships - Revised, the Dyadic Adjustment Scale, the Event Related Rumination Inventory, the Inventory of Complicated Grief, and the Posttraumatic Growth Inventory. Results show a positive relationship between attachment anxiety and complicated grief via intrusive rumination, as well as a positive relationship between attachment anxiety and posttraumatic growth via intrusive and deliberate rumination. Results also show that the greater the attachment avoidance the higher the severity of complicated grief, but only in the case of perceived low quality of the marriage. The presented research provides insight into the complex associations between the quality of interpersonal relationships, rumination and adjustment to loss among individuals who experienced the death of a spouse.

Polish adaptation of the quality of relationships inventory-Bereavement version.

We examined the psychometric properties of the Polish version of the Quality of Relationships Inventory-Bereavement Version (QRI-B) in a sample of 241 persons bereaved after the death of a family member from 0.5 to 8 years (M = 3.36, SD = 2.02) before the survey. A good fit of the original two-factor (Closeness and Conflict) model of the QRI-B was determined by confirmatory factor analysis. Cronbach's alpha was .91 for Closeness and .84 for Conflict. Closeness correlated negatively with attachment avoidance and Conflict correlated positively with attachment anxiety. The Polish version of the QRI-B is a valid and reliable measure of the quality of the pre-loss relationship with the deceased.

Polish version of the Inventory of Complicated Grief - preliminary validation. / Polska wersja Inwentarza Zaloby Powiklanej ­ wstepna walidacja.

OBJECTIVES: The purpose of the following study was to verify the psychometric properties of the Polish version of the Inventory of Complicated Grief. METHODS: 278 people who experienced loss of a close relative or a friend participated in the research on adaptation of the tool. The following research methods were applied: ICG (Inventory of Complicated Grief), BDI (Beck Depression Inventory), STAI (State-Trait Anxiety Inventory), IES-R (Impact of Events Scale-Revised), AHS (Adult Hope Scale), LOT-R (Life Orientation Test-Revised), GSES (General Self-Efficacy Scale), MSTAT-2 (Multiple Stimulus Types Ambiguity Tolerance). RESULTS: The statistical analyses conducted as part of the research prove the Polish version of the ICG to be a reliable and valid tool (Cronbach's alpha = 0.941). Amoderate positive correlation was noted between the overall ICG score and depression (r = 0.50; p < 0.001), post-traumatic stress disorder (r = 0.67; p < 0.001) and trait anxiety (r = 0.59; p < 0.001). The general ICG results also display negative correlation between variables related to positive expectations of the future: optimism (r = -0.37; p < 0.001), hope for success (r =-0.19; p =0.001), general self-efficacy (r = - 0.27; p < 0.001), and ambiguity tolerance (r = - 0.27; p < 0.001). The conducted confirmatory factor analysis (CFA) revealed that the one-factor model of the Polish version of the Inventory of Complicated Grief can be considered wellfitted to the data (correlation of measurement errors was allowed). CONCLUSIONS: Preliminary studies on the adaptation of the Polish version of the ICG prove, therefore, that it is a valid and reliable tool. However, further research is needed to help better understand the structure of complicated grief symptoms.