Table 1.
Past-year nonmedical prescription opioid (NMPO) use in the population and NMPO use disorder among past-year nonmedical prescription opioid users by age and period of assessment from ages 12 to 34 in 13 consecutive annual surveys (NSDUH 2002–2014).
| AGE | ||||||
|---|---|---|---|---|---|---|
| Period | 12–13 % (95%CI) | 14–17 % (95%CI) | 18–21 % (95%CI) | 22–25 % (95%CI) | 26–29 % (95%CI) | 30–34 % (95%CI) |
| A. Prevalence of past-year NMPO use at specific ages among aggregated birth cohorts (N = 542,556) | ||||||
| 2002–2005 | 3.3a (3.0–3.7) | 9.4a (9.1–9.8) | 13.4a (12.9–13.8) | 10.6a (10.1–11.0) | 7.5a,b (6.8–8.2) | 5.7a (5.1–6.3) |
| 2006–2009 | 2.9b (2.7–3.2) | 8.4b (8.1–8.8) | 12.9a (12.5–13.3) | 11.4b (10.9–11.9) | 8.1a (7.3–8.9) | 5.8a (5.3–6.4) |
| 2010–2013 | 2.6b (2.4–2.9) | 7.0c (6.6–7.3) | 10.2b (9.7–10.7) | 9.7c (9.3–10.2) | 8.1a (7.5–8.9) | 7.0b (6.4–7.6) |
| 2014 | 2.7a,b (2.2–3.3) | 5.8d (5.2–6.5) | 7.8c (7.0–8.8) | 7.3d (6.6–8.2) | 6.4b (5.5–7.5) | 5.7a (4.9–6.7) |
| B. Prevalence of NMPO use disorder among past-year users at specific ages among aggregated birth cohorts (N = 46,264) | ||||||
| 2002–2005 | 13.8a (11.1–17.1) | 15.5a (14.0–17.2) | 10.9a (9.8–12.1) | 12.5a (11.3–13.8) | 12.6a (10.0–15.8) | 10.8a (8.4–13.7) |
| 2006–2009 | 11.4a (8.9–14.6) | 14.9a (13.5–16.5) | 13.4b (12.1–14.7) | 14.3a,b (12.8–16.1) | 14.0a,b (11.3–17.2) | 15.7b (12.7–19.2) |
| 2010–2013 | 11.7a (8.5–15.8) | 14.2a (12.7–15.9) | 16.1c (14.5–17.8) | 18.8b (16.7–21.0) | 17.7b (14.7–21.2) | 20.0b (16.3–24.3) |
| 2014 | 12.8a (7.5–21.1) | 13.7a (10.0–18.3) | 12.7a,b,c (9.7–16.5) | 17.7b,c (13.8–22.4) | 26.0c (21.2–31.5) | 21.3b (15.6–28.2) |
| C. Birth cohorts by age and period | ||||||
| 2002–2005 | 1992–95 | 1988–91 | 1984–87 | 1980–83 | 1976–79 | 1972–75 |
| 2006–2009 | 1996–99 | 1992–95 | 1988–91 | 1984–87 | 1980–83 | 1976–79 |
| 2010–2013 | 2000–01 | 1996–99 | 1992–95 | 1988–91 | 1984–87 | 1980–83 |
| 2014 | 2002 | 2000–01 | 1996–99 | 1992–95 | 1988–91 | 1984–87 |
a,b,c,d
Different superscripts indicate statistically significant (p < 0.05) birth cohort or period effects within each age group (column).