Table 5. Impact of intervention on severity of symptoms (mean CIS-R score) at 6 months, by facility type and diagnostic group at baseline (secondary analyses).
| Diagnostic group at baseline | Type of facility |
p-value for effect modification | ||
|---|---|---|---|---|
| All facilities | PHC | GPs | ||
| ICD-10 cases (n=1961) | ||||
| Collaborative Stepped Care | 9.30 | 9.28 | 9.32 | |
| Enhanced Usual Care | 11.61 | 14.12 | 9.10 | |
| Mean difference (95% CI) | -2.14 (-4.32, 0.04) | -4.84 (-8.48, -1.20) | 0.63 (-2.76, 4.02) | .001 |
| P-value | 0.05 | 0.02 | 0.68 | |
|
| ||||
| Depression cases (n=673) | ||||
| Collaborative Stepped Care | 11.38 | 11.30 | 11.47 | |
| Enhanced Usual Care | 12.54 | 15.60 | 9.48 | |
| Mean difference (95% CI) | -1.01 (-3.63, 1.61) | -4.30 (-9.58, 0.98) | 2.38 (-1.29, 6.05) | <0.001 |
| P-value | 0.42 | 0.09 | 0.17 | |
|
| ||||
| Screen positive cases (n=2429) | ||||
| Collaborative Stepped Care | 8.56 | 8.39 | 8.72 | |
| Enhanced Usual Care | 10.87 | 13.13 | 8.60 | |
| Mean difference (95% CI) | -2.15 (-4.20, -0.10) | -4.75 (-8.86, -0.64) | 0.52 (-2.36, 3.40) | 0.001 |
| P-value | 0.04 | 0.03 | 0.69 | |
|
| ||||
| Sub-threshold cases (n=468) | ||||
| Collaborative Stepped Care | 5.62 | 5.69 | 5.56 | |
| Enhanced Usual Care | 7.62 | 8.56 | 6.68 | |
| Mean difference (95% CI) | -1.90 (-4.01, 0.20) | -2.87 (-8.09, 2.34) | -0.91 (-3.25, 1.44) | 0.20 |
| P-value | 0.07 | 0.20 | 0.40 | |