TABLE 1.
Percent of US Army enlisted personnel with postdeployment positive drug test, by time window and component, Substance Use and Psychological Injury Combat Study
| Postdeployment Time Window and Component | Test Results for Common Panel of Drugsa | |||
|---|---|---|---|---|
| n Positiveb | Total Testedc | % Positive | (95% CI) | |
| Combined (0 to 3 yr) | ||||
| Active Duty | 11,786 | 340,598 | 3.46 | (3.40, 3.52) |
| National Guard/Reserve | 5,522 | 143,859 | 3.84 | (3.74, 3.94) |
| Immediate (0 to <6 mo) | ||||
| Active Duty | 4,382 | 265,689 | 1.65 | (1.60, 1.70) |
| National Guard/Reserve | 947 | 43,380 | 2.18 | (2.05, 2.32) |
| Follow-up (6 mo to 3 yr) | ||||
| Active Duty | 8,399 | 306,345 | 2.74 | (2.68, 2.80) |
| National Guard/Reserve | 4,831 | 136,433 | 3.54 | (3.44, 3.64) |
a
Common panel: metabolites of cocaine, heroin, marijuana (i.e., THC), and the amphetamine class, with separate confirmation of d-Amphetamine, d-Methamphetamine, and two designer (non-prescribed) amphetamines, MDMA (ecstasy) and MDA
b
Number of enlisted personnel testing positive for any common panel drug during the time window
c
Total enlisted personnel who received at least one common panel test during the time window