Table 1.
Study Hypotheses.
| Prevalence of Substance | |||
|---|---|---|---|
| Availability of Substance | Decrease | Steady/Increase | |
| Decrease | (1) Constriction of Supply | (3) Persevering | |
| Steady/ Increase | (2) Constriction of Use Opportunities | (4) No changes during social distancing |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.