Table 1 Definition of variables
| Variables | Description |
|---|---|
| Y | Dependent variables |
| Time | Pre-EENC period = 0 |
| Post-EENC period = 1 | |
| Group | Control (Routine care) group = 0 |
| Intervention (EENC) group = 1 | |
| Effect | Group*Time |
| Xj | Covariates |
| β0 | Baseline in the routine care group |
| βeffect | Net effect of the EENC |
| βj | Regression coefficient of Xj |
| Ɛ | Random error |