| 2014 | 2015 | 2016 | 2017 | Trend (p)a |
---|---|---|---|---|---|
Both sexes | |||||
 All substances | 0.39 (0.37, 0.41) | 0.44 (0.42, 0.47) | 0.50 (0.48, 0.52) | 0.57 (0.56, 0.59) | < 0.0001 |
 Alcohol | 0.49 (0.45, 0.52) | 0.55 (0.51, 0.58) | 0.66 (0.62, 0.69) | 0.74 (0.71, 0.76) | < 0.0001 |
 Opioids | 0.51 (0.48, 0.54) | 0.58 (0.55, 0.60) | 0.61 (0.59, 0.63) | 0.66 (0.64, 0.68) | < 0.0001 |
 Other CNS Depressants | 0.89 (0.85, 0.93) | 0.93 (0.91, 0.96) | 0.94 (0.92, 0.97) | 0.95 (0.93, 0.97) | < 0.01 |
 Cocaine | 0.77 (0.73, 0.81) | 0.77 (0.74, 0.80) | 0.78 (0.76, 0.81) | 0.85 (0.83, 0.86) | < 0.0001 |
 Other CNS Stimulants* | 0.71 (0.64, 0.77) | 0.71 (0.65, 0.76) | 0.79 (0.75, 0.82) | 0.88 (0.86, 0.90) | < 0.0001 |
Males | |||||
 All substances | 0.38 (0.36, 0.41) | 0.45 (0.43, 0.48) | 0.50 (0.48, 0.52) | 0.58 (0.56, 0.60) | < 0.0001 |
 Alcohol | 0.50 (0.46, 0.54) | 0.57 (0.53, 0.61) | 0.68 (0.64, 0.73) | 0.76 (0.73, 0.80) | < 0.0001 |
 Opioids | 0.51 (0.47, 0.54) | 0.59 (0.56, 0.62) | 0.62 (0.59, 0.64) | 0.66 (0.64, 0.68) | < 0.0001 |
 Other CNS Depressants | 0.90 (0.85, 0.95) | 0.96 (0.93, 0.99) | 0.94 (0.91, 0.98) | 0.97 (0.95, 0.99) | < 0.05 |
 Cocaine | 0.76 (0.71, 0.80) | 0.77 (0.73, 0.81) | 0.77 (0.74, 0.80) | 0.85 (0.83, 0.87) | < 0.0001 |
 Other CNS Stimulants* | 0.70 (0.61, 0.78) | 0.71 (0.65, 0.77) | 0.78 (0.74, 0.82) | 0.89 (0.87, 0.92) | < 0.0001 |
Females | |||||
 All substances | 0.40 (0.40, 0.40) | 0.42 (0.42, 0.42) | 0.50 (0.49, 0.50) | 0.55 (0.55, 0.55) | < 0.0001 |
 Alcohol | 0.45 (0.45, 0.46) | 0.46 (0.45, 0.47) | 0.57 (0.57, 0.58) | 0.66 (0.65, 0.66) | < 0.0001 |
 Opioids | 0.52 (0.52, 0.53) | 0.54 (0.54, 0.54) | 0.60 (0.59, 0.60) | 0.65 (0.65, 0.65) | < 0.0001 |
 Other CNS Depressants | 0.87 (0.86, 0.87) | 0.90 (0.90, 0.91) | 0.94 (0.93, 0.94) | 0.91 (0.91, 0.92) | n.s. |
 Cocaine | 0.80 (0.80, 0.81) | 0.76 (0.76, 0.77) | 0.84 (0.84, 0.85) | 0.84 (0.83, 0.84) | n.s. |
 Other CNS Stimulants* | 0.73 (0.71, 0.75) | 0.68 (0.67, 0.70) | 0.79 (0.79, 0.80) | 0.85 (0.84, 0.85) | < 0.01 |