Table 3.
Comparisons between study sample and published findings on substance use
| Substance | Total (n=229), n (%) | Population norm, n (%) | Test of significance | Citation | Population description |
|---|---|---|---|---|---|
| Tobacco | 86 (37.6%) | 52.7% |
χ2=21.07, p < .001 (one-sample test) |
Odani et al. (2018) | US veterans aged 26–34 (N not reported; subgroup from a sample of 13,140) |
| Alcohol | 186 (81.2%) | 88.6% | χ2=2.40, p = .12 | Derefinko et al. (2018) | US veterans (N = 80) |
| Marijuana and cannabis products | 32 (14.0%) | 13.6% | χ2= 0.02, p = .88 | Davis et al. (2018) | US veterans (N = 2587) |
| Illegal drugs (cocaine, meth, opiates, etc.) | 5 (2.2%) | 11.4% | χ2=11.27, p < .001 | Derefinko et al. (2018) | US veterans (N =80) |
| Prescribed opioids | 96 (41.9%) | 19.2% |
χ2=76.07, p < .001 (one-sample test) |
Lin et al. (2020) | National retail pharmaceutical database |