Table 4.
Prevalence of moderate-to-high usea of drugs, alcohol, and tobacco among primary care community health center patients, by type of substance, and by city
| Substance Used at Moderate-to-High Levela | Los Angeles (n=2226) |
Tijuana (n=2788) |
P value |
|---|---|---|---|
| % | % | ||
| Drugs | 19.4 | 5.7 | *** |
| Marijuana | 12.5 | 4.2 | *** |
| Stimulants: | 7.3 | 3.1 | *** |
| Cocaine/crack | 4.4 | 1.9 | *** |
| Methamphetamine/Amphetamines | 5.7 | 2.4 | *** |
| Inhalants | 1.4 | 0.7 | * |
| Sedatives | 4.6 | 1.5 | *** |
| Hallucinogens | 2.3 | 0.8 | *** |
| Opioids | 4.6 | 1.0 | *** |
| Polydrug use (more than one drug) | 7.6 | 3.1 | *** |
| Alcohol | 15.2 | 6.6 | *** |
| Tobacco | 20.5 | 16.1 | *** |
| Multiple Substances (mutually exclusive groups): | |||
| No substances | 66.0 | 79.7 | *** |
| Drugs only | 6.5 | 1.4 | *** |
| Alcohol only | 4.1 | 2.3 | *** |
| Tobacco only | 7.6 | 10.1 | ** |
| Drugs and alcohol | 2.9 | 0.4 | *** |
| Drugs and tobacco | 4.8 | 2.2 | *** |
| Alcohol and tobacco | 3.0 | 2.2 | |
| Drugs, alcohol, and tobacco | 5.2 | 1.7 | *** |
a
Moderate-to-High Substance Use: Drugs (ASSIST >=4); Alcohol (ASSIST >=11); Tobacco (ASSIST >=4)
*
P<0.05, Chi-square test for differences between cities
**
P<0.01, Chi-square test for differences between cities
***
P<0.001, Chi-square test for differences between cities