The proposed study is a 12-year follow-up of 321 cocaine- dependent men who were originally admitted in 1988-89 to the West Los Angeles Veterans Affairs Medical Center (WLA-VAMC). These subjects have been previously interviewed at intake and in two follow-up interviews conducted in 1990-91 and 1991-92 as part of a NIDA-funded study (DA04268). These subjects' cocaine use careers from onset of use to treatment entry averaged 11.5 years. The natural history database established by the previous interviews will be supplemented by the proposed work for almost 12 years after treatment admission. The proposed research will represent an unusually long-term follow-up study of cocaine- dependent individuals.
The specific aims of the study are: (1) To provide a detailed natural history description of approximately 24-year-long cocaine use careers of cocaine- dependent men; (2) To identify factors that influence relapse and cessation of use over the course of the cocaine use career; (3) To analyze and describe morbidity and mortality among this cocaine-dependent sample; (4) To evaluate the extent of criminal activity, identify specific criminal career patterns in relation to cocaine use, and to assess patterns of institutionalization and legal supervision over the cocaine use career and their effects; (5) To analyze the history of treatment intervention and assess the effects of specific and cumulative treatment episodes on cocaine use. Advanced statistical models (including growth curve modeling) will be applied to assess longitudinal relationships. The study results will inform policy and strategies for treating cocaine use by adding to and refining the understanding of long-term patterns and consequences of cocaine use and other drug use, utilization of drug treatment and other social interventions, and their associated outcomes.

Agency
National Institute of Health (NIH)
Institute
National Institute on Drug Abuse (NIDA)
Type
Research Project (R01)
Project #
5R01DA013594-03
Application #
6523144
Study Section
Special Emphasis Panel (ZRG1-SNEM-2 (01))
Program Officer
Hilton, Thomas
Project Start
2000-09-30
Project End
2004-07-31
Budget Start
2002-08-01
Budget End
2003-07-31
Support Year
3
Fiscal Year
2002
Total Cost
$441,734
Indirect Cost
Name
University of California Los Angeles
Department
Type
Schools of Medicine
DUNS #
119132785
City
Los Angeles
State
CA
Country
United States
Zip Code
90095
Herbeck, Diane M; Hser, Yih-Ing; Lu, Ake T H et al. (2006) A 12-year follow-up study of psychiatric symptomatology among cocaine-dependent men. Addict Behav 31:1974-87
Yang, Joy C; Huang, David; Hser, Yih-Ing (2006) Long-term morbidity and mortality among a sample of cocaine-dependent black and white veterans. J Urban Health 83:926-40
Hser, Yih-Ing; Stark, Maria Elena; Paredes, Alfonso et al. (2006) A 12-year follow-up of a treated cocaine-dependent sample. J Subst Abuse Treat 30:219-26