Table 5. Co-Use Persistence Between Waves 3 & 4.
Any Use | Baseline | + School & Demographic Controls | +Psychological Controls |
---|---|---|---|
Excess Proportion | 0.977 | 1.010 | 1.008 |
Proportion Co-Users | 0.990 | 0.992 | 0.991 |
Heavy Use | Baseline | + School & Demographic Controls | +Psychological Controls |
Excess Proportion | 0.865* | 0.833+ | 0.832+ |
Proportion Co-Users | 0.913* | 0.796* | 0.795* |
Note: N=2,599 for the any use models (2,595 for the psychological control model); N= 1,345 for the heavy use models (1,342 for the psychological control model).