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Findings
(updated 06/14/04 with the most recent yearly data)

Click to see the tables; you will need the Adobe Acrobat Reader since these tables are presented in "pdf" format.  This format enabled tables to be reduced in size by about 90% in most cases, resulting in an equivalent reduction in download time.  The "Reader" can be downloaded for free at the following location:  http://www.adobe.com/products/acrobat/readstep.html

Notes:  "by Grade" indicates 8th, 10th, and 12th.  Attempting to compare totals using the "N of Cases" will not work due to missing values.  The percentages presented in the tables are based on "valid cases".  Results are not based on a  representative sample of students in Michigan, and should not be generalized to all students in the state without extreme caution.  


10 Year Trends in Lifetime Use of Various Substances by Grade  

10 Year Trends in Past-Month Use of Various Substances by Grade 

10 Year Trends in Heavy (or Frequent) Use of Various Substances by Grade 

5 Year Trends in Past-Month Use of Various Substances by Gender for 12th Graders

5 Year Trends in Past-Month Use of Various Substances by Race for 12th Graders

5 Year Trends in Past-Month Use of Various Substances by College Plans for 12th Graders

10 Year Trends in Driving Under the Influence by Grade 

10 Year Trends in Setting in Which Past Month Use Occurred 

10 Year Trends in Perceived Availability of Various Substances by Grade

5 year Trends in Safety and Violence Issues by Grade 

2 year Comparison of Friends Perceived Approval with Parents Perceived Approval