1. Marijuana Use in Delaware: 2018 State Epidemiological Profile
Data from the
2018 State Epidemiological Profile
Prepared by the: University of Delaware
Center for Drug and Health Studies on behalf of the
Strategic Prevention Framework – Partnerships for Success Project

2. 2018 Delaware State Epidemiological Profile
National Survey of Drug Use and Health Selected drug use, perceptions of great risk, average annual rates of first use of marijuana in Delaware, by age group (in percentages)
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Notes:
a Estimates are based on a survey-weighted hierarchical Bayes estimation approach. b Average annual rate = 100*{[X1 ÷ (0.5 * X1 + X2) ]÷2 }, where X1 is the number of marijuana initiates in past 24 months and X2 is the number of persons who never used marijuana. Both of the computation components, X1 and X2, are based on a survey-weighted hierarchical Bayes estimation approach. Note that the age group is based on a respondent's age at the time of the interview, not his or her age at first use.
Source: “ National Survey on Drug Use and Health.” Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration
2018 Delaware State Epidemiological Profile

3. Source: 2018 Delaware State Epidemiological Profile
Notes: a Estimates are based on a survey-weighted hierarchical Bayes estimation approach. b Average annual rate = 100*{[X1 ÷ (0.5 * X1 + X2)]÷2 }, where X1 is the number of marijuana initiates in past 24 months and X2 is the number of persons who never used marijuana. Both of the computation components, X1 and X2, are based on a survey-weighted hierarchical Bayes estimation approach. Note that the age group is based on a respondent's age at the time of the interview, not his or her age at first use. Source: “ National Survey on Drug Use and Health: Model Based Prevalence Estimates.” Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration.
Source: 2018 Delaware State Epidemiological Profile

4. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Marijuana use among Delaware 5th graders (in percentages)
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Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

5. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Marijuana use among Delaware 5th graders (in percentages)
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

6. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Marijuana use among Delaware 8th graders (in percentages)
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Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

7. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Marijuana use among Delaware 8th graders (in percentages)
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

8. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Marijuana use among Delaware 11th graders (in percentages)
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

9. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Marijuana use among Delaware 11th graders (in percentages)
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

10. 2018 Delaware State Epidemiological Profile
2017 Youth Risk Behavior Survey Percentage of high school students who have ever used marijuana one or more times during their lifetime
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Source:“2017 Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware).
2018 Delaware State Epidemiological Profile

11. 2018 Delaware State Epidemiological Profile
2017 Youth Risk Behavior Survey Percentage of high school students who used marijuana one or more times during the past 30 days
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Source:“2017 Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware).
2018 Delaware State Epidemiological Profile

12. 2018 Delaware State Epidemiological Profile
2017 Youth Risk Behavior Survey Percentage of high school students who used synthetic marijuana one or more times during their lifetime
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Source:“2017 Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware).
2018 Delaware State Epidemiological Profile

13. 2017 Delaware School Survey Average age of onset for marijuana use
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Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

14. 2018 Delaware State Epidemiological Profile
Delaware School Survey Trends in Delaware students’ past month marijuana use by grade, 1989-present
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Sources: Data Base/DiagnosticsPlus ( )
Department of Public Instruction (1994)
“2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware. (1995- Present)
Note: These statistics contribute to the National Outcome Measures (NOMs)
2018 Delaware State Epidemiological Profile

15. 2018 Delaware State Epidemiological Profile
Youth Risk Behavior Survey Trends in Delaware High School students’ marijuana use, 1999-present
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Note: Weighted Data
Source: “Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware)
2018 Delaware State Epidemiological Profile

16. 2018 Delaware State Epidemiological Profile
High School Youth Risk Behavior Survey Past month use of marijuana (in percentages)
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Notes: Weighted Data
“--” National YRBS data for 2017 not yet available
Source: “Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware)
2018 Delaware State Epidemiological Profile

17. 2018 Delaware State Epidemiological Profile
High School Youth Risk Behavior Survey Past month use of marijuana (in percentages)
Table copied as image (cannot be altered)
Notes: Weighted Data
“--” National YRBS data for 2017 not yet available
Source: “Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware)
“Trends in the Prevalence of Marijuana, Cocaine, and Other Illegal Drug Use National YRBS: ” Centers for Disease Control and Prevention.
“National Youth Risk Behavior Survey” Centers for Disease Control and Prevention
2018 Delaware State Epidemiological Profile

18. 2018 Delaware State Epidemiological Profile
National Survey of Drug Use and Health Marijuana use in past year, by age group and state: and (in percentages)
Notes:
a Estimates are based on a survey-weighted hierarchical Bayes estimation approach.
b p value: Bayes significance levels for the null hypothesis of no change between the and population percentages.
Table copied as image (cannot be altered)
Source: “National Survey on Drug Use and Health: Comparison of and Population Percentages.” Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration
2018 Delaware State Epidemiological Profile

19. 2018 Delaware State Epidemiological Profile
National Survey of Drug Use and Health Marijuana use in past month, by age group and state: and (in percentages)
Notes:
a Estimates are based on a survey-weighted hierarchical Bayes estimation approach.
b p value: Bayes significance levels for the null hypothesis of no change between the and population percentages.
Table copied as image (cannot be altered)
Source: “National Survey on Drug Use and Health: Comparison of and Population Percentages.” Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration
2018 Delaware State Epidemiological Profile

20. 2018 Delaware State Epidemiological Profile
National Survey of Drug Use and Health Average annual rate of first use of marijuana, by age group and state: and NSDUH (in percentages)
Notes:
a Estimates are based on a survey-weighted hierarchical Bayes estimation approach.
b p value: Bayes significance levels for the null hypothesis of no change between the and population percentages.
Table copied as image (cannot be altered)
Source: “National Survey on Drug Use and Health: Comparison of and Population Percentages.” Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration
2018 Delaware State Epidemiological Profile

21. 2018 Delaware State Epidemiological Profile
Delaware School Survey, Youth Risk Behavior Survey and Monitoring the Future Comparison of recent National and Delaware estimates of marijuana use among High School Students (in percentages)
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Notes: “--“ Not Available. Weighted data.
Sources: “Delaware School Survey.” Center for Drug and Health Studies, University of Delaware. ( )
“Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware). ( )
National Adolescent Drug Trends Press Release: Text and Tables. Monitoring the Future Study (MTF), University of Michigan. (2017)
2018 Delaware State Epidemiological Profile

22. 2018 Delaware State Epidemiological Profile
Youth Risk Behavior Survey Percentage of high school students who think people moderately or greatly risk harming themselves physically or in other ways when they smoke marijuana once or twice a week
Table copied as image (cannot be altered)
Note: Weighted Data
Source: “2017 Delaware Youth Risk Behavior Survey (YRBS).” Centers for Disease Control and Prevention (Administered by the Center for Drug and Health Studies, University of Delaware).
2018 Delaware State Epidemiological Profile

23. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Perceived “a lot of risk” in using marijuana weekly among 5th graders
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

24. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Perceived “great risk” in using marijuana regularly among 8th and 11th graders
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

25. 2018 Delaware State Epidemiological Profile
National Survey of Drug Use and Health Perceptions of great risk of smoking marijuana once a month, by age group and state: and NSDUH (in percentages)
Table copied as image (cannot be altered)
Notes:
a Estimates are based on a survey-weighted hierarchical Bayes estimation approach.
b p value: Bayes significance levels for the null hypothesis of no change between the and population percentages.
“--” Data not available
Source: “ National Survey on Drug Use and Health: Model-Based Prevalence Estimates.” Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration.
2018 Delaware State Epidemiological Profile

26. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Reported smoking marijuana and driving among Delaware 11th graders (in percentages)
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

27. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Reported smoking marijuana and driving among Delaware 11th graders (in percentages)
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware.
2018 Delaware State Epidemiological Profile

28. 2018 Delaware State Epidemiological Profile
2017 Delaware School Survey Trends in Delaware eleventh graders' reporting smoking marijuana and driving in the past month,
Table copied as image (cannot be altered)
Source: “2017 Delaware School Survey.” Center for Drug and Health Studies, University of Delaware ( ).
2018 Delaware State Epidemiological Profile

29. 2018 DELAWARE STATE EPIDEMIOLOGICAL PROFILE: SUBSTANCE USE AND RELATED ISSUES
This data chapter is an excerpt from the 2018 Delaware Epidemiological Profile. For more information about the Profile, please visit Delaware Epidemiological Reports
Prepared by the University of Delaware Center for Drug and Health Studies & Its State Partners for The Delaware SPF-PFS Program, The Delaware Division of Substance Abuse and Mental Health, & The State Epidemiological Outcomes Workgroup (SEOW, formerly the Delaware Drug and Alcohol Tracking Alliance/DDATA) Sponsored by Award SP to the Division of Substance Abuse and Mental Health, Delaware Health and Social Services, from the Center for Substance Abuse Prevention, Substance Abuse and Mental Health Services Administration. Please address all inquiries to: Laura Rapp, PhD, University of Delaware Center for Drug and Health Studies, Department of Sociology and Criminal Justice: