Table 2

Measurement tools and questions at each time point

MeasuresBaselineMidPost3-Month follow-up
Process evaluation
 Expectancy of benefit (baseline) and intervention acceptability and patient satisfaction (post-treatment)CEQ38
Primary outcomes
Mini International Neuropsychiatric Interview V.5.0.0 MDD module40
 DM distressPAID48
 Glycemic controlSelf-reported HbA1c
Secondary outcomes
 Psychological distressK-1050
 Lifestyle behavioursThe Fantastic Checklist51
 Disability, functional impairment and well-beingThe SF-1252
 Eating habitsPHQ—Eating module53
 AlcoholPHQ—Alcohol module53
 Attachment styleThe Relationships Questionnaire55
  • CEQ, Treatment Credibility/Expectancy Questionnaire; DM, diabetes mellitus; GAD-7, Generalized Anxiety Disorder 7-Item; HbA1c, glycosylated hemoglobin; K-10, Kessler-10; MDD, major depressive disorder; PAID, Problem Areas in DM Questionnaire; PHQ-9, Patient Health Questionnaire—9-Item; PHQ-15, PHQ—Physical symptoms module.