Table 5

Summary of results of depression studies

StudyMain study findings for mental health outcome*Main study findings for physical health outcome*Other study outcomes*
Martinović et al32Significantly greater decreases in scores for:
▸ Self-reported depressive symptoms in CBI group compared with TAU group
▸ Differences retained at 9-month follow up
Non-significant difference for:
▸ Number of depressive episodes between groups (3 in TAU and 0 in CBI)
▸ CBI group significantly greater quality of life scores compared with TAU group, postintervention and at 9-month follow-up
McGrady and Hood33Significant reductions for: 
▸ Self-reports of depressive symptoms 
▸ Parent reports of depressive symptoms
▸ Significant increase in self-reported self-management levels
▸ No significant change in parent-reported self-management; blood glucose monitor download; glycaemic control
▸ Seven out of nine participants demonstrated increases in HbA1c (ie, poorer glycaemic control)
Rosselló and Jiménez-Chafey34Significant reductions for: 
▸ Self-reports of depressive symptoms
Non-significant reductions for
▸ Anxiety and hopelessness
▸ Significant improvement in diabetes self-efficacy over the course of therapy
▸ No significant changes in glycaemic control, nor self-care behaviours
Szigethy et al35Significant reductions for:
▸ Self-reports of depressive symptoms
▸ Parent reports of depressive symptoms
▸ Maintained at both follow-up time points (6 months and 12 months)
▸ No significant change in illness severity postintervention
▸ Significant increase in subjective general health (child and parent-report measures)
▸ Mean increase in perceived physical functioning (young person report only; non-significant for parent-report)
▸ Significant increase in perceived social functioning (child and parent-report)
▸ Mean overall satisfaction with the intervention was 6·64 for parents and 5·64 for children, on a scale of 1–7, where 7 is the most helpful
Szigethy et al37Significantly greater changes in the intervention group compared with control group for:
▸ Reduction in self/parent-rated depression severity (maintained at 12-month follow-up).
▸ Increases in global functioning
Non-significant changes for:
▸ Reductions in the number of symptoms from clinician-rated interview; greater reductions were found in the intervention group, but this difference was not statistically significant (p=0.055)
▸ CBT group increased in mean perceived control score, whereas the comparison group demonstrated a mean decrease. The difference was maintained at the 6-month, but not at the 12-month follow-up
  • *Significant refers to statistical significance at the 0.05 level. Results refer to pre-post treatment differences, unless stated otherwise.

  • CBI, cognitive behavioural intervention.