Table 3.
Estimates of the Effect of MMC on Prescriptions in the MRx model.
| (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, MRx weight = 0.777 | ||||
| Child in MMC | 0.0096*** (0.0020) |
0.0086*** (0.0014) |
0.0071*** (0.0004) |
11.60% |
| Mean outcome | 0.061 | |||
| Panel B: The Effect of MMC on Asthma, MRx weight = 0.322 | ||||
| Child in MMC | 0.0224*** (0.0026) |
0.0206*** (0.0028) |
0.0126*** (0.0006) |
8.20% |
| Mean outcome | 0.154 | |||
| Panel C: The Effect of MMC on Infections, Low Severity, MRx weight = 0.0 | ||||
| Child in MMC | 0.0338*** (0.0055) |
0.0654*** (0.0048) |
0.0472*** (0.0009) |
12.80% |
| Mean outcome | 0.369 | |||
| Panel D: The Effect of MMC on Infections, Medium Severity, MRx weight = 0.137 | ||||
| Child in MMC | −0.0001 (0.0043) |
0.0212*** (0.0032) |
0.0158*** (0.0007) |
8.80% |
| Mean outcome | 0.180 | |||
| Panel E: The Effect of MMC on Eye, Ear, Nose and Throat, MRx weight = 0.151 | ||||
| Child in MMC | 0.0216*** (0.0032) |
0.0282*** (0.0033) |
0.0174*** (0.0007) |
5.80% |
| Mean outcome | 0.172 | |||
| Panel F: The Effect of MMC on Inflammatory/Autoimmune, MRx weight = 0.156 | ||||
| Child in MMC | 0.0187*** (0.0028) |
0.0142*** (0.0016) |
0.0090*** (0.0005) |
8.60% |
| Mean outcome | 0.105 | |||
| Panel G: The Effect of MMC on Pain, MRx weight = 0.0 | ||||
| Child in MMC | −0.0063*** (0.0015) |
0.0065*** (0.0008) |
0.0056*** (0.0004) |
10.40% |
| Mean outcome | 0.054 | |||
| Panel H: The Effect of MMC on Gastric Acid Disorder, MRx weight = 0.0 | ||||
| Child in MMC | 0.0035*** (0.0011) |
0.0064*** (0.0012) |
0.0061*** (0.0004) |
14.50% |
| Mean outcome | 0.042 | |||
| Panel I: The Effect of MMC on Nausea, MRx weight = 0.316 | ||||
| Child in MMC | 0.0173*** (0.0015) |
0.0072*** (0.0008) |
0.0041*** (0.0004) |
9.80% |
| Mean outcome | 0.042 | |||
| Panel J: The Effect of MMC on Cardiac, MRx weight = 1.175 | ||||
| Child in MMC | 0.0041*** (0.0007) |
0.0026*** (0.0005) |
0.0020*** (0.0002) |
12.50% |
| Mean outcome | 0.016 | |||
| Panel K: The Effect of MMC on Depression/Anxiety, MRx weight = 1.110 | ||||
| Child in MMC | −0.0002 (0.0006) |
0.0018*** (0.0004) |
0.0018*** (0.0002) |
11.30% |
| Mean outcome | 0.016 | |||
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-varying characteristics (income and age) and standard errors are clustered on patients.