Figure 1
Flow Chart of Studies Selection.
Table 1
Characteristics of the Included Studies.
| AUTHOR | YEAR | COUNTRY | INTERVENTION LENGTH | FEMALES IN TOTAL SAMPLE, N (%) | SAMPLE SIZE OF CC VS UC/EUC | METHOD OF DEPRESSION DIAGNOSIS | FOLLOW-UP | OUTCOME ASSESSMENT | CC=(baseline) | UC=(baseline) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MEAN DEPRESSION SCORE | MEAN HBA1C (%) | MEAN DEPRESSION SCORE | MEAN HBA1C (%) | |||||||||
| Kathleen Ell | 2005 | USA | 12-month | 318(82.2) | 193/194 | PHQ-9≥10 | 6, 12, 18 month | SCL-20 | 1.7 | 9.01 | 1.41 | 9.05 |
| de Vries McClintock | 2014 | USA | 12-week | 59(75.6) | 37/41 | Not clear | 6, 12 week | CES-D | Not clear | 7.5 | Not clear | 7.6 |
| Ali | 2015 | India | 12-month | 239(59.2) | 196/208 | PHQ-9≥10 | 6, 12, 18, 24 mo | SCL-20 | 1.3 | 9.3 | 1.4 | 9 |
| Naik | 2012 | USA | 6-month | 23 (10.2) | 136/89 | PHQ-9≥10 | 6, 12 mo | PHQ-9 | 15.8 | 9.2 | 16.2 | 9.3 |
| Williams Jr | 1999 | USA | 12-month | 223(53.5) | 205/212 | structured clinical interview | 6, 12 mo | SCL-20 | 1.67 | 7.3 | 1.72 | 7.3 |
| Bogner | 2010 | USA | 12-week | (102)56.7 | 92/88 | a current prescription for an antidepressant | 6, 12 week | PHQ-9 | 10.6 | 7.2 | 9.9 | 7 |
| Bogner | 2007 | USA | 12-week | 49(84.5) | 29/29 | a current prescription for an antidepressant | 2, 4, 6, 12 week | CES-D | 15.6 | 7.3 | 19.7 | 7.3 |
| Kathleen Ell | 2005 | USA | 12-month | 317(82) | 193/194 | PHQ-9≥10 and structured clinical interview | 6, 12, 18, 24 month | SCL-20 and PHQ-9 | Not clear | Not clear | Not clear | Not clear |
| Katon | 2001 | USA | 12-month | 214(65.1) | 164/165 | PHQ-9≥10 and SCL-20 ≥1.1 | 3, 6, 9, 12 month | SCL-90 | 1.7 | 8 | 1.6 | 8 |
| Kathleen Ell | 2013 | USA | 12-month | 296(85) | 178/170 | PHQ-9≥10 and structured clinical interview | 6, 12 month | SCL-20 | 1.01 | 8.91 | 1.06 | 8.84 |
| Cummings | 2017 | USA | 12-month | 108(77.7) | 67/72 | DDS-2≥3 and/or PHQ-2 ≥ 3 | 6, 12 month | PHQ-12 | 9.7 | 9.88 | 8.8 | 9.35 |
| Johnson | 2010 | Canada | 12-month | 87(55.4) | 95/62 | PHQ≥10 | 6, 12 month | PHQ-9 | 14.5 | 7.5 | 14.6 | 7.8 |
[i] Abbreviations: CC, collaborative care; UC, Usual Care; eUC, enhanced Usual Care; PHQ-9, Patient Health Questionnaire–9; SCL-20, 20-item Symptom Checklist Depression Scale; CES-D, Center for Epidemiologic Studies Depression Scale; DDS-2, Diabetes Distress Scale-2; PHQ-2, Patient Health Questionnaire–2; PHQ-12, Patient Health Questionnaire–12; USA, United States.
Figure 2
A: Risk Ratio (RR) in depression outcomes. B: Risk Ratios (RRs) of subgroup analysis in depression outcomes.
Figure 3
A: Standard Mean Differences (SMDs) in HbA1c. B: Standard Mean Differences (SMDs) of subgroup analysis in HbA1c.
Figure 4
A: Standard Mean Difference (SMD) in QoL. B: Standard Mean Differences (SMDs) of subgroup analysis in Qol.