Table 1.
Nonmedical Prescription Drug Use, 2009–2015a
| YRBS Year | 2009 Prevalence (%) (95% CI) | 2011 Prevalence (%) (95% CI) | 2013 Prevalence (%) (95% CI) | 2015 Prevalence (%) (95% CI) |
|---|---|---|---|---|
| Total | 20.2 (19.5, 20.8) | 20.7 (20.0, 21.3) | 17.8 (17.1, 18.4) | 16.8b (16.2, 17.4) |
| Boys | 20.4 (19.5, 21.3) | 21.5 (20.6, 22.5) | 18.3 (17.4, 19.3) | 17.8b (16.9, 18.6) |
| Girls | 19.8 (18.9, 20.7) | 19.8 (18.8, 20.7) | 17.2 (16.3, 18.1) | 15.6b (14.8, 16.5) |
| White | 23.0 (22.1, 23.9) | 22.9 (22.0, 23.8) | 18.7 (17.8, 19.6) | 16.5c (15.7, 17.3) |
| Black | 11.8 (10.4, 13.2) | 14.7 (13.2, 16.3) | 13.3 (11.8, 14.9) | 14.8d (13.3, 16.4) |
| Hispanic | 17.2 (15.7, 18.6) | 19.4 (17.9, 20.8) | 19.2 (17.7, 20.6) | 17.5 (16.3, 18.8) |
| Other | 18.8 (16.5, 21.1) | 18.5 (16.4, 20.6) | 16.7 (14.5, 18.8) | 18.6 (16.6, 20.6) |
| White Boys | 22.8 (21.6, 24.0) | 23.6 (22.3, 24.9) | 19.4 (18.1, 20.7) | 17.1b (16.0, 18.3) |
| White Girls | 23.3 (22.0, 24.6) | 22.2 (20.9, 23.5) | 18 (16.8, 19.3) | 15.9b (14.8, 17.1) |
| Black Boys | 13.3 (11.2, 15.3) | 17.5 (15.2, 19.9) | 15.7 (13.4, 18.1) | 18.1d (15.8, 20.4) |
| Black Girls | 10.3 (8.5, 12.2) | 11.9 (9.9, 14.0) | 11.1 (9.1, 13.0) | 10.7 (8.8, 12.7) |
| Hispanic Boys | 17.8 (15.7, 19.8) | 19.7 (17.6, 21.7) | 18.5 (16.4, 20.5) | 18.4 (16.6, 20.3) |
| Hispanic Girls | 16.6 (14.6, 18.6) | 19 (16.9, 21.0) | 19.9 (17.8, 21.9) | 16.5 (14.7, 18.3) |
| Other Boys | 18.9 (15.6, 22.2) | 18 (15.1, 21.0) | 16.7 (13.6, 19.7) | 17.9 (15.2, 20.7) |
| Other Girls | 18.4 (15.1, 21.6) | 19 (15.9, 22.0) | 16.7 (13.7, 19.7) | 18.3 (15.4, 21.2) |
Note.
a:
Risk behavior prevalence was calculated for the following race/ethnicity and sex subgroups: white, black, Hispanic, and other and further split by boys/girls. The 95% confidence intervals were used to identify significant differences in prevalence at each time point.
b:
2015 prevalence significantly lower (as per 95% confidence intervals) from previous years (2009 and 2011).
c:
2015 prevalence significantly lower (as per 95% confidence intervals) from all previous years (2009, 2011, 2013).
d:
2015 prevalence significantly higher (as per 95% confidence intervals) from previous year (2009).