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Table 4 Serious mental illness prevalence ratios by legal status

From: Co-occurrence across time and space of drug- and cannabinoid- exposure and adverse mental health outcomes in the National Survey of Drug Use and Health: combined geotemporospatial and causal inference analysis

Status

Serious Mental Illness Cases

No. Using Cannabis Last Month

Population

Proportion with Serious Mental Illness

Proportion Using Cannabis Last Month

Decriminalized

6,106,622

12,033,634

143,356,702

4.26% (4.18, 4.34%)

8.39%

Illegal

11,650,796

17,995,589

283,172,529

4.11% (4.01, 4.21%)

6.35%

Legal

805,083

2,337,511

16,936,978

4.75% (4.65, 4.85%)

13.80%

Medical

7,394,236

16,516,827

184,526,713

4.01% (3.83, 4.19%)

8.95%