Table 4 The mean age of patients who used MA in starting groups
From: Investigating the sequential patterns of methamphetamine use initiation in Iran
First Substance | Mean ± SD |
|---|---|
Opium | 18.06 ± 7.41 |
Methamphetamine | 30 ± 14.93 |
Cannabis | 16.54 ± 4.03 |
Heroin | 19.83 ± 9.78 |
Alcohol | 15.79 ± 4.92 |
Tobacco | 15.25 ± 4.26 |