Correlation between Cocaine Prices and Purity with Trends in Emergency Department Visits in a Major Metropolitan Area
Illicit drug use not only causes acute and chronic adverse health outcomes but also results in a significant burden to health care providers. The objective of this study is to examine the relationship between cocaine prices and purity with emergency department (ED) visits for the Chicago-Naperville-Joliet metropolitan area. Our primary outcome was number of cocaine-related ED visits per quarter provided by the Drug Abuse Warning Network. The predictor variables of cocaine purity and price were provided by the System to Retrieve Information from Drug Evidence database. Autoregressive integrated moving average (ARIMA) regressions were used to estimate the effects of cocaine price and purity on cocaine-related ED visits. Although cocaine prices did not change substantially over time, cocaine purity decreased by over 30 % between 2006 and 2010. ARIMA regression results suggest that cocaine-related ED visits were not significantly associated with powder or crack cocaine prices; however, a decrease in powder cocaine purity was associated with 2,081 fewer ED visits overall from 2007 to 2010. The cocaine trade continues to be a major public health and law enforcement threat to large metropolitan cities like Chicago. Regular monitoring of cocaine purity levels may provide early warning of impending changes in cocaine-related ED visits for law enforcement and health care providers.
KeywordsCocaine Emergency room Drug abuse Substance abuse Illicit drugs Economic factors
- 1.National Institute on Drug Abuse. Cocaine: abuse and addiction. 2010. http://www.drugabuse.gov/sites/default/files/cocainerrs.pdf. Accessed June 10, 2013.
- 2.National Drug Intelligence Center. The economic impact of illicit drug use on American society. 2011. http://www.justice.gov/archive/ndic/pubs44/44731/44731p.pdf. Accessed June 10, 2013.
- 3.Drug Enforcement Administration. Drugs of abuse: a DEA resource guide. 2011 edition. http://www.justice.gov/dea/docs/drugs_of_abuse_2011.pdf. Accessed April 4, 2013.
- 6.National Survey on Drug Use and Health. Results from the 2011 National Survey on Drug Use and Health: mental health findings and detailed tables. http://www.samhsa.gov/data/NSDUH/2011SummNatFindDetTables/NSDUH-DetTabsPDFWHTML2011/2k11DetailedTabs/Web/HTML/NSDUH-DetTabsSect1peTabs1to46-2011.htm#Tab1.1A. Accessed October 20, 2013.
- 10.Substance Abuse and Mental Health Services Administration. Drug Abuse Warning Network, 2011: national estimates of drug-related emergency department visits. HHS publication no. (SMA) 13–4760, DAWN Series D-39. http://www.samhsa.gov/data/2k13/DAWN2k11ED/DAWN2k11ED.htm. Published 2013. Accessed October 20, 2013.
- 12.Dave D. The effects of cocaine and heroin prices on drug-related emergency department visits. 2004. http://www.nber.org/papers/w10619.pdf?new_window=1. Access June 1, 2013.
- 16.Substance Abuse and Mental Health Services Administration. DAWN Cases Report. 2011.Google Scholar
- 17.Drug Enforcement Administration. STIDE data. http://www.justice.gov/dea/resource-center/stride-data.shtml. Accessed April 1, 2013.
- 18.Office of National Drug Control Policy. Technical report for the price and purity of illicit drugs: 1981 through the second quarter of 2003. Washington: Executive Office of the President (Publication Number NCJ 207769; 2004.Google Scholar
- 19.Drug Enforcement Administration. All cocaine purchase prices domestic STRIDE data April 2005-September 2008. http://www.justice.gov/dea/divisions/hq/2008/pr121108_PPGcocaine_05to08graph111408_with%20box.pdf. Accessed April 1, 2013.
- 22.Community Epidemiology Work Group. Epidemiologic trends in drug abuse Volume II. 2011 June. http://www.drugabuse.gov/sites/default/files/cewgjune2011_vol_ii_508.pdf. Accessed October 20, 2013.
- 26.Substance Abuse and Mental Health Services Administration. Drug Abuse Warning Network. http://www.samhsa.gov/data/DAWN.aspx. Accessed January 15, 2013.
- 27.Arkes J, Pacula RL, Paddock SM, Caulkins JP, Reuter P. Why the DEA Stride data are still useful for understanding drug markets. 2008. http://calhoun.nps.edu/public/bitstream/handle/10945/37075/NBER_w14224.pdf?sequence=1. Accessed March 8, 2013.
- 28.STATA Corporation. STATA. 2013. College Station, TX.Google Scholar
- 33.DrugScope.org.uk. Purity. http://www.drugscope.org.uk/resources/drugsearch/drugsearchpages/purity. Accessed September 5, 2013.
- 34.Drugs of abuse–cocaine/crack. http://www.clarkprosecutor.org/html/substnce/crack.htm. Accessed September 5, 2013.
- 35.National Drug Intelligence Center. Chicago high intensity drug trafficking area: drug market analysis 2011. 2011. http://www.justice.gov/archive/ndic/dmas/Chicago_DMA-2011(U).pdf. Accessed August 28, 2013.
- 36.Substance Abuse and Mental Health Services Administration. National Survey on Drug Use and Health. http://www.samhsa.gov/data/NSDUH.aspx. Accessed May 5, 2013.
- 37.Office of National Drug Control Policy. 2013 National Drug control Strategy. http://www.whitehouse.gov/ondcp/national-drug-control-strategy. Accessed January 10, 2014.
- 38.Donohue III JJ, Ewing B, Pelopquin D. Rethinking America’s illegal drug policy. In: Cook PJ, Ludwig J, McCrary J, ed. Controlling Crime: Strategies and Tradeoffs. Chicago, IL: University of Chicago Press; 2010:215-281.Google Scholar