Table 3.
Results of the General Linear Mixed Model.
| Effect | Estimate | SE | df | t value | p value | |
|---|---|---|---|---|---|---|
| Intercept | 27.3385 | 7.0280 | 4 | 3.89 | .018 | |
| Year-2000 | 0.3215 | 0.2834 | 68 | 1.13 | .26 | |
| Spline component #1: year > 2008 | −1.0052 | 0.8096 | 68 | −1.24 | .22 | |
| County group: CBD (GLP is the reference group) | −3.0624 | 9.9388 | 4 | −0.31 | .77 | |
| Spline component #2: county grouping × year ≥ 2008 | 3.3023 | 1.1449 | 68 | 2.88 | .005 | |
| County group slopes | ||||||
| CBD: Predissemination | −0.6317 | 0.2834 | 68 | −2.23 | ||
| CBD: Postdissemination | 1.6655 | 0.6129 | 68 | 2.72 | .006* | |
| GLP: Predissemination | 0.3215 | 0.2834 | 68 | 1.13 | ||
| GLP: Postdissemination | −0.6837 | 0.6129 | 68 | −1.12 | .22* | |
Note. CBD refers to Charleston, Dorchester and Berkeley counties; GLP refers to Greenville, Lauren, and Pickens counties.
*
Compared to the predissemination county group.