Brief Culturally Adapted Behavioral Activation Therapy for Adults With Depression in Indonesian Primary Care: A Type-2 Hybrid Effectiveness-Implementation Trial

Participants will fill the Patient Health Questionnaire-9 (PHQ-9) as self-reported questionnaire using paper and pencil format, administered by research assistant. PHQ-9 consists of nine items with four response from 'not at all' (0) to 'nearly every day' (3). The score of the PHQ-9 ranges from 0 to 27 with higher score indicating higher depressive symptoms.

Acceptability is defined as the participant's perception that a given treatment is agreeable, palatable, or satisfactory and will be measured using the Client Satisfaction Questionnaire-8 (CSQ-8). CSQ-8 consists of 8 items with four optional responses. The score of the questionnaire will range from 1 to 32 with higher score indicating acceptability of intervention.

Acceptability is defined as the clinical provider's perception that a given treatment is agreeable, palatable, or satisfactory and will be measured by Acceptability of Intervention Measure (AIM). AIM consists of four items with five Likert-based responses. The score of the scale will range from 1 to 20 with higher score indicating higher acceptability to the intervention.

Feasibility is defined as the perceived extent to which the intervention can be successfully used or carried out in primary care setting from participants and clinical providers' perspectives and will be measured by Feasibility of Intervention Measure (FIM). FIM consists of four items with five Likert-type responses. The score of the scale will range from 1 to 20 with higher score indicating higher feasibility of the intervention.

Appropriateness is defined as the perceived fit, relevance, or compatibility of brief culturally adapted behavioral activation for adults with depression in primary care setting from participant's and clinical provider's perspectives, and measured by Intervention Appropriateness Measure (IAM). IAM consists of four items with five Likert-based responses. The score of the scale will range from 1 to 20 with higher score indicating higher appropriateness of the intervention.

Participants will be asked about their experiences in receiving or providing the intervention through individual qualitative interview to understand their perceived acceptability, feasibility, and appropriateness in a more detailed and comprehensive way.

Clinical providers will be asked about their experiences in receiving or providing the intervention through individual qualitative interview to understand their perceived acceptability, feasibility, and appropriateness in a more detailed and comprehensive way.

Rate of remission or recovery will be calculated in percentage based on result of SCID-5 interview, administered by primary care psychologist. The result of clinical interview will categorize the participants into active depression or in remission or no diagnosis (fully recovered).

The level of behavioral activation among participants will be tracked through the course of treatment using BADS-SF. Participants will fill the BDS-SF every week at the treatment scheduled time. BADS-SF consists of 9 items with response on each item ranging from 0 to 6. The score of the BADS-SF will range from 0 to 54 with higher score indicating higher activation.

Participants will fill the WHOQOL-BREV as self-reported questionnaire using paper and pencil format, administered by research assistant. WHOQOL-BREV consists of 26 items with score on each item ranges from 0 to 5. The scale will produce quality of life profile which consists of overall perception of individual's quality of life, overall perception of individual's health, and four quality of life domains (physical health, psychological, social relationship, and environment). The score is calculated using mean score of each domain, then transformed to 4-20. Higher score of the domain indicates higher quality of life.

Anxiety is measured using Generalized Anxiety Disorder-7 (GAD-7) as a self-reported questionnaire using paper and pencil format, administered by research assistant. GAD-7 consists of seven items with four response on each item ranging from 0 to 4. The score of GAD-7 will range from 0 to 21 with higher score indicating higher anxiety.

Rate of remission or recovery will be calculated in percentage based on result of SCID-5 interview, administered by primary care psychologist. The result of clinical interview will categorize the participants into active depression or in remission or no diagnosis (fully recovered).

Participants will fill the PHQ-9 as self-reported questionnaire using paper and pencil format, administered by research assistant. PHQ-9 consists of nine items with four response from 'not at all' (0) to 'nearly every day' (3). The score of the PHQ-9 ranges from 0 to 27 with higher score indicating higher depressive symptoms.

Participants will fill the WHOQOL-BREV as self-reported questionnaire using paper and pencil format, administered by research assistant. WHOQOL-BREV consists of 26 items with score on each item ranges from 0 to 5. The scale will produce quality of life profile which consists of overall perception of individual's quality of life, overall perception of individual's health, and four quality of life domains (physical health, psychological, social relationship, and environment). The score is calculated using mean score of each domain, then transformed to 4-20. Higher score of the domain indicates higher quality of life.

Anxiety is measured using Generalized Anxiety Disorder-7 (GAD-7) as a self-reported questionnaire using paper and pencil format, administered by research assistant. GAD-7 consists of seven items with four response on each item ranging from 0 to 4. The score of GAD-7 will range from 0 to 21 with higher score indicating higher anxiety.