Table 3 Difference in differences (DID) with time trend and interaction term
Variables | Model-1a | Model-2b | Model-3c | Model-4d |
|---|---|---|---|---|
Treatment | 0.430 | − 0.020 | 0.106 | − 0.238 |
(0.276) | (0.221) | (0.364) | (0.277) | |
Time (Post-intervention) | 0.570** | 0.320 | 0.570** | 0.320 |
(0.276) | (0.221) | (0.284) | (0.229) | |
Interaction term | 4.170*** | 3.360*** | 4.170*** | 3.360*** |
(0.390) | (0.312) | (0.382) | (0.309) | |
Confounders | No | No | Yes | Yes |
R square | 0.540 | 0.500 | 0.570 | 0.530 |
Prob > F | 0.000 | 0.000 | 0.000 | 0.000 |