Table 3. Univariate difference-in-difference analysis of the communication training on the antibiotic prescribing behavior.
| Prescribing rate (in %) | |||||
|---|---|---|---|---|---|
| Intervention Group | Control Group | Difference-in-Difference | |||
| unmatched | matched | unmatched | matched | ||
| Before | 55.43 | 47.27 | 52.86 | ||
| (2014–2015) | (n = 2284) | (n = 235355) | (∑wi≈2282) | ||
| After | 44.27 | 42.61 | 47.80 | ||
| (2016) | (n = 698) | (n = 75167) | (∑wi≈736) | ||
| Difference | -11.16** | -4.65** | -5.07* | -6.51** | -6.10* |
| p-value | <0.001 | <0.001 | 0.017 | 0.003 | 0.043 |
313,504 observations (234,723 patients from 1,477 general practitioners). Significance levels: * 5%, ** 1%. Matching is based on Entropy balancing using the variables listed in Table 2 and wi denotes the Entropy balancing weights.