Table 2.
Exponentiated parameter estimates and 95% credible intervals for a0 = 0 and a0 = 1.
| Risk ratio | 95% Credible limits |
||
|---|---|---|---|
| 95% Lower limit | 95% Upper limit | ||
| NEGATIVE BINOMIAL REGRESSION FOR TES | |||
| a0 = 0 | |||
| Intercept | 3.158 | 1.895 | 5.694 |
| Medication | 3.346 | 1.483 | 7.650 |
| Marijuana | 1.062 | 1.000 | 1.160 |
| Medication*marijuana | 0.887 | 0.781 | 1.022 |
| Dispersion | 28.566 | 11.451 | 107.651 |
| a0 = 1 | |||
| Intercept | 3.376 | 2.184 | 5.552 |
| Medication | 2.376 | 1.217 | 4.646 |
| Marijuana | 1.050 | 0.999 | 1.124 |
| Medication*marijuana | 0.899 | 0.808 | 1.016 |
| Dispersion | 38.695 | 16.805 | 118.570 |
| FREQUENTIST MAXIMUM LIKELIHOOD ESTIMATES FOR THE INTERACTION OF MEDICATION AND MARIJUANA | |||
| Sample | Risk ratio estimate | 95% Confidence interval | Likelihood ratio statistic |
| Historical sample | 0.856 | 0.687–1.066 | χ(1) = 1.77, p < 0.184 |
| Current sample | 0.887 | 0.787–1.001 | χ(1) = 3.12, p < 0.078 |
| Combined samples | 0.899 | 0.810–0.998 | χ(1) = 3.30, p < 0.069 |