Table 2.
Parameter estimates, standard errors, and p values of a segmented regression model predicting the average number of deliveries per month in East-Shewa zone, central Ethiopia, 2007-2016.
| Independent variables | Coefficient | Standard error | p value | RE% |
|---|---|---|---|---|
| Model (correcting for the first-order autocorrelation) | ||||
| Initial level of facility deliveries (β0) | 173.867 | 8.791 | 0.000∗∗∗ | |
| Preintervention slope (β1) | 0.807 | 0.299 | 0.008∗∗ | |
| Immediate intervention effect (β2) | 56.793 | 10.934 | 0.000∗∗∗ | |
| Postintervention slope (β3) | 1.698 | 16.817 | 0.009∗∗ | |
| Level effect | ||||
| 1st year | 290 | 16.542 | 0.452 | 36.2 |
| 2nd year | 320 | 11.828 | 0.015∗ | 44 |
| 3rd year | 350 | 10.934 | 0.000∗∗∗ | 51 |
Note: ∗∗∗p < 0.001, ∗∗p < 0.01, ∗p < 0.05.