Summary of results of depression studies
| Study | Main study findings for mental health outcome* | Main study findings for physical health outcome* | Other study outcomes* |
|---|---|---|---|
| Martinović et al32 | Significantly 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 Hood33 | Significant 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-Chafey34 | Significant 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 al35 | Significant 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 al37 | Significantly 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.