Technology-supported Interventions for Prolonged Grief Disorder (PGD)

Change in the Inventory of Complicated Grief (ICG).

The Inventory of Complicated Grief (ICG) is a self-administered instrument that assesses grief symptoms in adults. It is a simple instrument that allows distinguishing normal grief reactions from complicated ones.The instrument consists of 19 items written in the first person with five response options (Likert): 0; never 1; rarely 2; sometimes 3; often and 4; always. about the client's thoughts and behaviors related to immediate grief. The items assess the frequency of emotional, cognitive and behavioral symptoms characteristic of the grieving process.

Change in Beck Depression Inventory-II (BDI-II).

It is a self-report measure composed of 21 items that assess the severity of depressive symptomatology in the last two weeks. It uses a response scale from 0 to 3, with higher scores indicating greater severity. It is calculated by adding the score of the 21 items and the maximum total score is 63.

Change in Typical Beliefs Questionnaire (TBQ).

A 25-item self-report instrument that assesses cognitions that hinder adjustment to loss. Structured in five factors: "Protesting the death", "Negative thoughts about the world", "Needing the person", "Less grief is a mistake" and "Suffering too much". It measures the degree of agreement regarding different affirmations using a Likert-type response system ranging from 0 (not at all) to 4 (strongly agree). A total score from 0 to 100 is calculated by adding up all the items.

Change in Overall Anxiety Severity and Impairment Scale (OASIS).

It is a self-applied instrument that assesses the frequency and severity of anxiety symptoms. It also measures the degree of avoidance and interference in all areas of the patient's life. It consists of 5 items with a response scale from 0 to 4. Higher scores indicate greater severity or frequency of symptomatology. The maximum score is 20 and is calculated by adding the score obtained for each of the 5 items.

Change in Overall Depression Severity and Impairment Scale (ODSIS).

It is a self-applied instrument that assesses the frequency and severity of depression symptoms. It also measures the degree of avoidance and interference in all areas of the patient's life. It consists of 5 items with a response scale from 0 to 4. One additional item has been included to assess suicide ideation. The maximum score is 20 and is calculated by adding the score obtained for each of the 5 items.

Change in Structured Clinical Interview for Complicated Grief (SCI-CG).

The SCI-CG is a 31-item clinician-administered instrument to assess the presence of complicated grief symptoms. Each item is answered on a 3-point Likert-type scale (Not present, Unsure or misleading, and Present). The maximum score is 93 and is calculated by adding the scores for each item.

Change in Anxiety Disorders Interview Schedule (ADIS) Clinician Severity rating Scale .

This instrument assesses the severity of symptoms evaluated by the clinician and the scale ranged from 0-8.Clinicians assign ratings from 0 (absent) to 8 (very severely disabling) reflecting the intensity of symptoms, associated avoidance, and interference with functioning. Higher scores indicating greater severity.

Change in Quality of Life Index (QLI).

It is a self-administered instrument that includes 10 items that evaluate the patients' quality of life in different areas and in a global manner. It uses a 10-point Likert-type scale: 1 (poor) to 10 (excellent).Higher scores indicate improvement.

Change in The Work and Social Adjustment Scale (WSAS).

It is a self-administered instrument that assesses psychosocial functional impairment. It consists of 5 items that are scored on a scale from 0 (not at all) to 8 (very severe). The maximum score is 40 and is calculated by adding the score of all items, the higher the score, the greater the interference in different areas.