|Benefit-Cost Summary Statistics Per Participant|
|Taxpayers||$96||Benefits minus costs||$177|
|Participants||$179||Benefit to cost ratio||$2.73|
|Others||$42||Chance the program will produce|
|Indirect||($37)||benefits greater than the costs||54 %|
|Net program cost||($102)|
|Benefits minus cost||$177|
|Meta-Analysis of Program Effects|
|Outcomes measured||Treatment age||No. of effect sizes||Treatment N||Adjusted effect sizes(ES) and standard errors(SE) used in the benefit - cost analysis||Unadjusted effect size (random effects model)|
|First time ES is estimated||Second time ES is estimated|
Alcohol use before end of high school
Any use of alcohol by the end of high school, typically between ages 14 and 18.
Alcohol use before end of middle school
Any use of alcohol by the end of middle school, typically by age 13.
Cannabis use before end of middle school
Any use of cannabis by the end of middle school, typically by age 13.
Problem alcohol use
Alcohol use reflecting problem behaviors (e.g., high frequency drinking, binge drinking, or drinking that has a high impact on daily life) for individuals who do not have an alcohol use disorder.
Smoking before end of middle school
Any smoking of tobacco by the end of middle school, typically by age 13.
|Detailed Monetary Benefit Estimates Per Participant|
|Affected outcome:||Resulting benefits:1||Benefits accrue to:|
|Alcohol use before end of middle school||Criminal justice system||$14||$0||$34||$7||$55|
|Problem alcohol use||Labor market earnings associated with problem alcohol use||$75||$177||$0||$0||$253|
|Property loss associated with problem alcohol use||$0||$1||$1||$0||$1|
|Health care associated with problem alcohol use||$6||$1||$7||$3||$17|
|Mortality associated with problem alcohol||$0||$1||$0||$4||$5|
|Program cost||Adjustment for deadweight cost of program||$0||$0||$0||($51)||($51)|
|Detailed Annual Cost Estimates Per Participant|
|Annual cost||Year dollars||Summary|
|Program costs||$35||2018||Present value of net program costs (in 2018 dollars)||($102)|
|Comparison costs||$0||2018||Cost range (+ or -)||20 %|
Benefits Minus Costs
Benefits by Perspective
Taxpayer Benefits by Source of Value
|Benefits Minus Costs Over Time (Cumulative Discounted Dollars)|
|The graph above illustrates the estimated cumulative net benefits per-participant for the first fifty years beyond the initial investment in the program. We present these cash flows in discounted dollars. If the dollars are negative (bars below $0 line), the cumulative benefits do not outweigh the cost of the program up to that point in time. The program breaks even when the dollars reach $0. At this point, the total benefits to participants, taxpayers, and others, are equal to the cost of the program. If the dollars are above $0, the benefits of the program exceed the initial investment.|
Komro, K.A., Perry, C.L., Veblen-Mortenson, S., Farbakhsh, K., Toomey, T.L., Stigler, M.H., Jones-Webb, R., . . . Williams, C.L. ( 2008). Outcomes from a randomized controlled trial of a multi-component alcohol use preventive intervention for urban youth: Project Northland Chicago. Addiction, 103(4), 606-618.
Perry, C.L. et al. (1996). Project Northland: Outcomes of a communitywide alcohol use prevention program during early adolescence. American Journal of Public Health, 86(7), 956-965.
Perry, C.L., Williams, C.L., Komro, K.A., Veblen-Mortenson, S., Stigler, M.H., Munson, K.A., et al. (2002). Project Northland: Long-term outcomes of community action to reduce adolescent alcohol use. Health Education Research, 17(1), 117-132.
West, B., Abatemarco, D., Ohman-Strickland, P.A., Zec, V., Russo, A., & Milic, R. (2008). Project Northland in Croatia: results and lessons learned. Journal of Drug Education, 38(1), 55-70.