Table A2.
Estimates of the Effect of MMC on ADHD and Asthma Diagnoses or Prescriptions.
| (1) | (2) | (3) | (4) | |
|---|---|---|---|---|
| County; Year Fixed Effects | NO | YES | YES | %change from (3) |
| Controls (incl. b.cert.) | NO | YES | YES | |
| Child Fixed Effects | NO | NO | YES | |
| Panel A: The Effect of MMC on ADHD | ||||
| Child in MMC | 0.014*** (0.002) |
0.011*** (0.001) |
0.008*** (0.0004) |
11.1% |
| Mean outcome | 0.072 | |||
| Panel B: The Effect of MMC on Asthma | ||||
| Child in MMC | 0.042*** (0.003) |
0.026*** (0.003) |
0.017*** (0.0006) |
10.4% |
| Mean outcome | 0.164 | |||
Notes: There are 2,960,843 observations. Controls include the child’s gender, race, birth month, child and maternal age (single year of age dummies), birth weight (<1500 g, 1500–2499 g, 2500–2999 g, 3000–3499g… >=4500 g), maternal education (<12, 12, some college, college plus, missing), Medicaid enrollment category, and monthly family income ($200, $200–399,…). Standard errors are clustered at the county level. In specification (3) controls include time-variant characteristics (income and age) and standard errors are clustered on patients.