Table 2.
Effects of school shootings on youth antidepressant use
| Fatal | Nonfatal | |||
| 2 y | 3 y | 2 y | 3 y | |
| ln(antidepressant prescriptions) | ||||
| Treatment × post | 0.213*** | 0.245*** | 0.0187 | 0.0603 |
| (0.064) | (0.079) | (0.060) | (0.053) | |
| Antidepressant prescription rate per 1,000 | ||||
| Treatment × post | 1.982** | 2.645** | 1.674 | 0.348 |
| (0.940) | (1.241) | (1.219) | (0.701) | |
| Relative to mean | 0.206** | 0.297** | 0.163 | 0.037 |
| Schools | 15 | 12 | 29 | 24 |
| Observations | 1,412 | 1,410 | 2,601 | 2,718 |
The table reports output from estimation of our primary difference-indifference specification. We regress measures of antidepressant prescriptions for individuals under age 20 at the school–area–month level on an indicator denoting months in or after a school shooting (“post”), an interaction between the post indicator and an indicator denoting treatment areas, month-by-year fixed effects, and school-by-area fixed effects. The treatment (reference) areas include providers practicing 0 to 5 miles (10 to 15 miles) from an affected school. All regressions are weighted by school enrollment, and standard errors (reported in parentheses) are clustered at the school-by-area level. .