From: Quantifying the size and characteristics of a population of people who use drugs on the reservation lands of a tribal nation in the southern plains (USA)
Population Estimate (95% CI)
Prevalence
Illicit substance use
419 (277, 562)
1.4
Smoked drugs
182 (123, 240)
0.6
Used methamphetamine
198 (134, 262)
0.7