Main outcome: %MTCT | |||||
a) Structural equation model | |||||
 | Path | Coef (95%CI) | Standardized coef | p-value | |
 Direct effects | HEI → % MTCT | 0.11 (-0.15, 0.37) | 0.15 | 0.398 | |
ART_score → % MTCT | -0.11 (-0.15, 0.08) | -0.85 | <0.001 | ||
HEI → ART_score | 3.64 (2.27, 5.02) | 0.63 | <0.001 | ||
Indirect (mediation) effectb | HEI → % MTCT | -0.41 (-0.61, -0.21) | -0.54 | <0.001 | |
Total effects | HEI → % MTCT | -0.30 (-0.54, -0.05) | -0.39 | 0.018 | |
ART_score → % MTCT | -0.11 (-0.15, -0.08) | -0.85 | <0.001 | ||
HEI → ART_score | 3.65 (2.27, 5.02) | 0.63 | <0.001 | ||
b) Linear Regression model | |||||
 Model | independent variable | outcome | Coef (95% CI) | Standardized coef. (Adjusted R2) | p-value |
 Simple linear | HEI | % MTCT | -0.27 (-0.58, 0.04) | -0.35 (0.08)* | 0.089 |
ART_score | % MTCT | -0.10 (-0.14, -0.06) | -0.74 (0.53)* | <0.001 | |
HEI | ART_score | 3.39 (1.41, 5.36) | 0.60 (0.34)* | 0.002 | |
 Multiple regression | HEI ART_score | % MTCT | 0.11 (-0.17, 0.40) | 0.15.a | 0.418 |
%MTCT | -0.11 (-0.16, -0.06) | -0.85Â (0.53a)Â | <0.001 | ||
Mediated effectsb | HEI | % MTCT | -0.38 (-0.64, -0.21) | Â | <0.001 |
Main Outcome: Paediatric case rate (case-rate) | |||||
a) Structural equation model | |||||
Effect | Path | Coef (95%CI) | Standardized coef | p-value | |
 Direct effects | HEI → Case_rate | 82.2 (66.1,98.3) | 1.03 | <0.001 | |
ART_score → Case_rate | -2.9 (-5.7, -0.01) | -0.21 | 0.05 | ||
HEI → ART_score | 3.7 (2.0, 5.5) | 0.64 | <0.001 | ||
Indirect (mediation) effectb | HEI → Case_rate | -10.6 (-22.4, 1.2) | -0.13 | 0.077 | |
Total effects | HEI → Case_rate | 71.6 (57.9, 85.3) | 0.90 | <0.001 | |
ART_score → Case_rate | -2.9 (-5.7, -0.01) | -0.21 | 0.05 | ||
HEI → ART_score | 3.73 (2.0, 5.5) | 0.64 | <0.001 | ||
b) Linear Regression model | |||||
 Model | predictor | outcome | Coef (95% CI) | Standardized coef. (Adjusted R2) | p-value |
 Simple linear | HEI | Case_rate | 72.8 (57.5, 88.2) | 0.90 (0.81)* | <0.001 |
ART_score | Case_rate | 6.1 (0.92, 11.4) | 0.45 (0.17)* | 0.023 | |
HEI | ART_score | 3.4 (1.4, 5.4) | 0.60 (0.34)* | 0.002 | |
 Multiple regression | HEI | Case_rate | 82.8 (64.6, 101.1) | 1.03 (0.83a) | <0.001 |
ART_score | Case rate | -3.0 (-6.2, 0.31) | -0.20 | 0.074 | |
Mediated effectsb | HEI | Case_rate | -10.0 (-21.8, 1.8) | Â | >0.05 |