From: Severe bacterial infections in people who inject drugs: the role of injection-related tissue damage
 | Mean (SD) | N | % | Range |
---|---|---|---|---|
Age at first drug injection, years | 25.8 (7.1) | 15 | – | 18–43 |
Injection drug use, years | 12.9 (9.1) | 15 | – | 1–31 |
Number of days injected in 30 days prior to admission | 26.3 (8.5) | 15 | – | 2–30 |
Number of injections per day in 30 days prior to admission | 11.0 (8.3) | 15 | – | 4–30 |
Drugs injected in 30Â days prior to admission | Â | |||
 Heroin | – | 12 | 80 | – |
 Fentanyl | – | 4 | 27 | – |
 Cocaine | – | 9 | 60 | – |
 Crack cocaine | – | 1 | 7 | – |
 Methamphetamine | – | 2 | 13 | – |