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Results from the 2018 National Survey on Drug Use and Health:
Detailed Tables

190404
Table 4.1B – Past Year Initiation of Marijuana Use among Persons Aged 12 or Older, Persons Aged 12 or Older At Risk for Initiation of Marijuana Use, and Past Year Marijuana Users Aged 12 or Older, by Demographic Characteristics: Numbers in Thousands and Percentages, 2017 and 2018
Demographic Characteristic Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
TOTAL 3,033 3,061 1.1 1.1 2.0 2.0 7.4 7.0
AGE GROUP                
12-25 2,508 2,536 4.2 4.3 6.3 6.3 16.7 17.0
12-17 1,204 1,339 4.8 5.4 5.4 6.0 38.9a 43.1
12-13 81 89 1.0 1.1 1.0 1.1 * *
14-15 496 554 5.9 6.6 6.3 7.1 55.8 58.0
16-17 627 696 7.3 8.1 9.3 10.2 30.2 34.6
18 or Older 1,829 1,722 0.7 0.7 1.4 1.3 4.8 4.3
18-25 1,304 1,197 3.8 3.5 7.4 6.8 10.9 10.1
18-20 850 768 6.6 5.9 10.6 9.6 19.3 16.8
21-25 454 429 2.1 2.0 4.8 4.4 6.0 5.9
26 or Older 525 525 0.2 0.2 0.5 0.5 2.0 1.8
GENDER                
Male 1,329 1,358 1.0 1.0 2.0 2.0 5.7 5.5
Female 1,704 1,704 1.2 1.2 2.0 2.0 9.7 9.0
GENDER/AGE GROUP                
Male 12-17 549 597 4.3 4.7 4.9 5.3 36.0 38.7
Female 12-17 655 742 5.4 6.1 5.9 6.7 41.7a 47.3
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.2B – Past Year Initiation of Cigarette Use among Persons Aged 12 or Older, Persons Aged 12 or Older At Risk for Initiation of Cigarette Use, and Past Year Cigarette Users Aged 12 or Older, by Demographic Characteristics: Numbers in Thousands and Percentages, 2017 and 2018
Demographic Characteristic Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
TOTAL 1,898 1,825 0.7 0.7 1.6 1.5 3.2 3.2
AGE GROUP                
12-25 1,756 1,712 3.0 2.9 4.2 4.0 14.4 15.8
12-17 604 571 2.4 2.3 2.6 2.5 38.6 41.8
12-13 53 46 0.7 0.6 0.7 0.6 * *
14-15 222 207 2.6 2.5 2.8 2.6 50.0 49.7
16-17 330 318 3.8 3.7 4.5 4.3 32.5 37.2
18 or Older 1,293 1,254 0.5 0.5 1.4 1.3 2.3 2.2
18-25 1,151 1,141 3.4 3.4 6.2 5.8 10.8 12.0
18-20 817 781 6.3 6.0 9.3 8.5 23.9 25.3
21-25 335 360 1.6 1.7 3.5 3.5 4.6 5.6
26 or Older 142 113 0.1 0.1 0.2 0.1 0.3 0.2
GENDER                
Male 981 900 0.7 0.7 1.9 1.7 3.0 2.9
Female 916 925 0.7 0.7 1.4 1.3 3.6 3.6
GENDER/AGE GROUP                
Male 12-17 311 265 2.5 2.1 2.7 2.3 38.5 38.1
Female 12-17 293 305 2.4 2.5 2.6 2.7 38.6 45.7
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.3B – Past Year Initiation of Alcohol Use among Persons Aged 12 or Older, Persons Aged 12 or Older At Risk for Initiation of Alcohol Use, and Past Year Alcohol Users Aged 12 or Older, by Demographic Characteristics: Numbers in Thousands and Percentages, 2017 and 2018
Demographic Characteristic Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
TOTAL 4,914 4,878 1.8 1.8 8.6 8.5 2.7 2.7
AGE GROUP                
12-25 4,771 4,816 8.1 8.2 16.2 16.0 15.5 16.0
12-17 2,332 2,380 9.3 9.6 11.4 11.5 42.7a 45.9
12-13 246 213 3.1 2.7 3.3 2.9 58.9 60.7
14-15 860 946 10.1 11.2 11.9 13.1 51.8 55.7
16-17 1,225 1,221 14.2 14.2 21.1 20.3 36.2 38.9
18 or Older 2,583 2,498 1.0 1.0 7.1 6.8 1.5 1.4
18-25 2,440 2,436 7.1 7.2 27.3 26.0 9.6 9.8
18-20 1,508 1,501 11.7 11.5 26.8 25.0 19.5 19.7
21-25 931 935 4.3 4.5 28.1 27.8 5.3 5.4
26 or Older 143 63 0.1a 0.0 0.5 0.2 0.1a 0.0
GENDER                
Male 2,315 2,300 1.8 1.7 9.3 9.3 2.6 2.6
Female 2,599 2,579 1.9 1.8 8.1 7.9 2.9 2.9
GENDER/AGE GROUP                
Male 12-17 1,054 1,090 8.3 8.6 10.0 10.3 41.6 44.1
Female 12-17 1,278 1,290 10.4 10.6 12.8 12.7 43.6 47.5
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.4B – Past Year Initiation of Substance Use among Persons Aged 12 or Older, Persons Aged 12 or Older At Risk for Initiation of Substance Use, and Past Year Substance Users Aged 12 or Older: Numbers in Thousands and Percentages, 2017 and 2018
Substance Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
ILLICIT DRUGS nr nr nr nr nr nr nr nr
Marijuana 3,033 3,061 1.1 1.1 2.0 2.0 7.4 7.0
Cocaine 1,037 874 0.4 0.3 0.4 0.4 17.5 15.8
Crack 83 101 0.0 0.0 0.0 0.0 8.9 13.3
Heroin 81 117 0.0 0.0 0.0 0.0 9.2 14.5
Hallucinogens 1,194 1,116 0.4 0.4 0.5 0.5 23.3a 19.9
LSD 794 778 0.3 0.3 0.3 0.3 35.4 33.5
PCP 23 14 0.0 0.0 0.0 0.0 * *
Ecstasy 787 722 0.3 0.3 0.3 0.3 31.6 28.7
Inhalants 575 576 0.2 0.2 0.2 0.2 32.7 28.8
Methamphetamine 195 205 0.1 0.1 0.1 0.1 11.9 11.0
Misuse of Psychotherapeutics nr nr nr nr nr nr nr nr
Pain Relievers 2,010 1,908 0.7 0.7 nr nr 18.1 19.2
Stimulants 1,192 1,001 0.4a 0.4 nr nr 20.4 19.6
Tranquilizers or Sedatives nr nr nr nr nr nr nr nr
Tranquilizers 1,446 1,210 0.5 0.4 nr nr 24.3 21.1
Sedatives 271 251 0.1 0.1 nr nr 20.0 23.2
Benzodiazepines -- -- -- -- -- -- -- --
Opioids nr nr nr nr nr nr nr nr
Illicit Drugs Other Than Marijuana1 nr nr nr nr nr nr nr nr
CIGARETTES 1,898 1,825 0.7 0.7 1.6 1.5 3.2 3.2
Daily Cigarette Use 608 495 0.2 0.2 0.3 0.3 -- --
SMOKELESS TOBACCO 1,013 918 0.4 0.3 0.4 0.4 8.7 8.4
CIGARS 2,338 2,274 0.9 0.8 1.2 1.2 10.0 9.9
ALCOHOL 4,914 4,878 1.8 1.8 8.6 8.5 2.7 2.7
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
NOTE: Methodological limitations preclude the estimation of past year initiates for the overall prescription psychotherapeutics category and consequently the overall illicit drugs and illicit drugs other than marijuana categories.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
1 Illicit Drugs Other Than Marijuana excludes respondents who used only marijuana but includes those who used marijuana in addition to other illicit drugs.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.5B – Past Year Initiation of Substance Use among Persons Aged 12 to 17, Persons Aged 12 to 17 At Risk for Initiation of Substance Use, and Past Year Substance Users Aged 12 to 17: Numbers in Thousands and Percentages, 2017 and 2018
Substance Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
ILLICIT DRUGS nr nr nr nr nr nr nr nr
Marijuana 1,204 1,339 4.8 5.4 5.4 6.0 38.9a 43.1
Cocaine 98 74 0.4 0.3 0.4 0.3 * *
Crack 9 4 0.0 0.0 0.0 0.0 * *
Heroin 9 7 0.0 0.0 0.0 0.0 * *
Hallucinogens 344a 234 1.4a 0.9 1.4a 1.0 67.1 62.1
LSD 188 142 0.8 0.6 0.8 0.6 72.7 69.4
PCP 13 5 0.1 0.0 0.1 0.0 * *
Ecstasy 146 105 0.6 0.4 0.6 0.4 * *
Inhalants 289 308 1.2 1.2 1.3 1.3 50.4 46.5
Methamphetamine 27 31 0.1 0.1 0.1 0.1 * *
Misuse of Psychotherapeutics nr nr nr nr nr nr nr nr
Pain Relievers 316 310 1.3 1.2 nr nr 41.2 44.6
Stimulants 217 181 0.9 0.7 nr nr 48.0 49.1
Tranquilizers or Sedatives nr nr nr nr nr nr nr nr
Tranquilizers 223 215 0.9 0.9 nr nr 48.7 51.0
Sedatives 34 36 0.1 0.1 nr nr * *
Benzodiazepines -- -- -- -- -- -- -- --
Opioids nr nr nr nr nr nr nr nr
Illicit Drugs Other Than Marijuana1 nr nr nr nr nr nr nr nr
CIGARETTES 604 571 2.4 2.3 2.6 2.5 38.6 41.8
Daily Cigarette Use 86 63 0.3 0.3 0.3 0.3 -- --
SMOKELESS TOBACCO 397a 307 1.6a 1.2 1.6a 1.3 53.1 49.1
CIGARS 599a 493 2.4a 2.0 2.5a 2.0 52.7 53.1
ALCOHOL 2,332 2,380 9.3 9.6 11.4 11.5 42.7a 45.9
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
NOTE: Methodological limitations preclude the estimation of past year initiates for the overall prescription psychotherapeutics category and consequently the overall illicit drugs and illicit drugs other than marijuana categories.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
1 Illicit Drugs Other Than Marijuana excludes respondents who used only marijuana but includes those who used marijuana in addition to other illicit drugs.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.6B – Past Year Initiation of Substance Use among Persons Aged 18 or Older, Persons Aged 18 or Older At Risk for Initiation of Substance Use, and Past Year Substance Users Aged 18 or Older: Numbers in Thousands and Percentages, 2017 and 2018
Substance Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
ILLICIT DRUGS nr nr nr nr nr nr nr nr
Marijuana 1,829 1,722 0.7 0.7 1.4 1.3 4.8 4.3
Cocaine 939 799 0.4 0.3 0.5 0.4 16.1 14.8
Crack 73 97 0.0 0.0 0.0 0.0 8.0 12.9
Heroin 72 110 0.0 0.0 0.0 0.0 8.3 13.8
Hallucinogens 850 882 0.3 0.4 0.4 0.4 18.4 16.9
LSD 606 636 0.2 0.3 0.3 0.3 30.5 30.1
PCP * * * * * * * *
Ecstasy 641 617 0.3 0.2 0.3 0.3 27.7 25.9
Inhalants 286 269 0.1 0.1 0.1 0.1 24.2 20.1
Methamphetamine 168 174 0.1 0.1 0.1 0.1 10.6 9.5
Misuse of Psychotherapeutics nr nr nr nr nr nr nr nr
Pain Relievers 1,694 1,598 0.7 0.6 nr nr 16.4 17.3
Stimulants 975 820 0.4 0.3 nr nr 18.1 17.3
Tranquilizers or Sedatives nr nr nr nr nr nr nr nr
Tranquilizers 1,222 995 0.5 0.4 nr nr 22.3 18.7
Sedatives 237 216 0.1 0.1 nr nr 18.5 21.1
Benzodiazepines -- -- -- -- -- -- -- --
Opioids nr nr nr nr nr nr nr nr
Illicit Drugs Other Than Marijuana1 nr nr nr nr nr nr nr nr
CIGARETTES 1,293 1,254 0.5 0.5 1.4 1.3 2.3 2.2
Daily Cigarette Use 522 433 0.2 0.2 0.3 0.3 -- --
SMOKELESS TOBACCO 615 611 0.2 0.2 0.3 0.3 5.6 5.9
CIGARS 1,739 1,781 0.7 0.7 1.1 1.1 7.8 8.1
ALCOHOL 2,583 2,498 1.0 1.0 7.1 6.8 1.5 1.4
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
NOTE: Methodological limitations preclude the estimation of past year initiates for the overall prescription psychotherapeutics category and consequently the overall illicit drugs and illicit drugs other than marijuana categories.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
1 Illicit Drugs Other Than Marijuana excludes respondents who used only marijuana but includes those who used marijuana in addition to other illicit drugs.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.7B – Past Year Initiation of Substance Use among Persons Aged 18 to 25, Persons Aged 18 to 25 At Risk for Initiation of Substance Use, and Past Year Substance Users Aged 18 to 25: Numbers in Thousands and Percentages, 2017 and 2018
Substance Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
ILLICIT DRUGS nr nr nr nr nr nr nr nr
Marijuana 1,304 1,197 3.8 3.5 7.4 6.8 10.9 10.1
Cocaine 729 616 2.1 1.8 2.4 2.0 34.3 31.3
Crack 21 36 0.1 0.1 0.1 0.1 * *
Heroin 46 35 0.1 0.1 0.1 0.1 * *
Hallucinogens 683 632 2.0 1.9 2.3 2.2 28.4 27.1
LSD 487 468 1.4 1.4 1.5 1.5 37.1 39.4
PCP 9 8 0.0 0.0 0.0 0.0 * *
Ecstasy 507 460 1.5 1.4 1.7 1.5 41.9 43.3
Inhalants 212 210 0.6 0.6 0.7 0.7 37.6 42.5
Methamphetamine 95 68 0.3 0.2 0.3 0.2 25.5 24.9
Misuse of Psychotherapeutics nr nr nr nr nr nr nr nr
Pain Relievers 465 464 1.4 1.4 nr nr 18.9a 25.0
Stimulants 581 517 1.7 1.5 nr nr 22.8 23.4
Tranquilizers or Sedatives nr nr nr nr nr nr nr nr
Tranquilizers 473 434 1.4 1.3 nr nr 25.2 27.7
Sedatives 51 73 0.1 0.2 nr nr 25.4 *
Benzodiazepines -- -- -- -- -- -- -- --
Opioids nr nr nr nr nr nr nr nr
Illicit Drugs Other Than Marijuana1 nr nr nr nr nr nr nr nr
CIGARETTES 1,151 1,141 3.4 3.4 6.2 5.8 10.8 12.0
Daily Cigarette Use 393 353 1.1 1.0 1.4 1.2 -- --
SMOKELESS TOBACCO 398 414 1.2 1.2 1.4 1.4 15.0 17.2
CIGARS 1,118 1,246 3.3 3.7 4.7 5.2 18.2a 21.4
ALCOHOL 2,440 2,436 7.1 7.2 27.3 26.0 9.6 9.8
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
NOTE: Methodological limitations preclude the estimation of past year initiates for the overall prescription psychotherapeutics category and consequently the overall illicit drugs and illicit drugs other than marijuana categories.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
1 Illicit Drugs Other Than Marijuana excludes respondents who used only marijuana but includes those who used marijuana in addition to other illicit drugs.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.
190404
Table 4.8B – Past Year Initiation of Substance Use among Persons Aged 26 or Older, Persons Aged 26 or Older At Risk for Initiation of Substance Use, and Past Year Substance Users Aged 26 or Older: Numbers in Thousands and Percentages, 2017 and 2018
Substance Number of Past Year
Initiates (1,000s)
Percentage of
Past Year Initiates
Percentage of Past Year
Initiates among Persons At
Risk for Initiation
Percentage of Past Year
Initiates among Past Year
Users
2017 2018 2017 2018 2017 2018 2017 2018
ILLICIT DRUGS nr nr nr nr nr nr nr nr
Marijuana 525 525 0.2 0.2 0.5 0.5 2.0 1.8
Cocaine 210 184 0.1 0.1 0.1 0.1 5.7 5.3
Crack 52 61 0.0 0.0 0.0 0.0 6.5 9.2
Heroin 26a 75 0.0a 0.0 0.0a 0.0 4.0a 11.7
Hallucinogens 167 250 0.1 0.1 0.1 0.1 7.6 8.7
LSD 120 169 0.1 0.1 0.1 0.1 17.7 18.1
PCP * * * * * * * *
Ecstasy 134 157 0.1 0.1 0.1 0.1 12.1 11.9
Inhalants 75 58 0.0 0.0 0.0 0.0 12.0 6.9
Methamphetamine 73 106 0.0 0.0 0.0 0.1 6.0 6.8
Misuse of Psychotherapeutics nr nr nr nr nr nr nr nr
Pain Relievers 1,229 1,134 0.6 0.5 nr nr 15.7 15.3
Stimulants 394 302 0.2 0.1 nr nr 13.9 12.0
Tranquilizers or Sedatives nr nr nr nr nr nr nr nr
Tranquilizers 749 560 0.4 0.3 nr nr 20.8a 14.9
Sedatives 186 143 0.1 0.1 nr nr 17.3 17.3
Benzodiazepines -- -- -- -- -- -- -- --
Opioids nr nr nr nr nr nr nr nr
Illicit Drugs Other Than Marijuana1 nr nr nr nr nr nr nr nr
CIGARETTES 142 113 0.1 0.1 0.2 0.1 0.3 0.2
Daily Cigarette Use 130 80 0.1 0.0 0.1 0.1 -- --
SMOKELESS TOBACCO 218 197 0.1 0.1 0.1 0.1 2.6 2.5
CIGARS 622 535 0.3 0.2 0.4 0.4 3.8 3.3
ALCOHOL 143 63 0.1a 0.0 0.5 0.2 0.1a 0.0
* = low precision; -- = not available; da = does not apply; nc = not comparable due to methodological changes; nr = not reported due to measurement issues.
NOTE: Methodological limitations preclude the estimation of past year initiates for the overall prescription psychotherapeutics category and consequently the overall illicit drugs and illicit drugs other than marijuana categories.
a The difference between this estimate and the 2018 estimate is statistically significant at the .05 level. Rounding may make the estimates appear identical.
1 Illicit Drugs Other Than Marijuana excludes respondents who used only marijuana but includes those who used marijuana in addition to other illicit drugs.
Definitions: Measures and terms are defined in Appendix A.
Source: SAMHSA, Center for Behavioral Health Statistics and Quality, National Survey on Drug Use and Health, 2017 and 2018.

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