Knowledge Item: CA-Summary of Patient Outcomes-05
Psychosocial and Medical Outcomes by Drug Abuse Status

Positive Outcomes: Maintained or Enhanced Functioning Over Time During Program
[by Drug Abuse Status]

Outcomes

Difference Due to Drug Abuse Status

Chi-Square
Quality of Life Yes c2(2) = 14.033, p = .001
Symptoms No c2(2) = 4.666, p =.097 
Psychological Distress No c2(2) = .571, p = .752
Service Barriers No c2(2) = 3.451, p = .178 
CD4 Count No c2(2) = .035, p = .983
Karnofsky Severity Rating No c2(2) = .739, p = .691
Viral Load No c2(2) = 1.909, p = .385

Notes:

  1. Psychosocial Projects did not collect medical indicators.

  2. The number of patients in each group varies by outcome and may be quite small in some cases.

  3. Symptom severity is considered to be a Psychosocial Outcome because the index of symptom severity is derived from patient self reports.


This Knowledge Item is a direct follow-up to a series of Knowledge Items that use hierarchical linear models to study the degree of change per day in patients (clients) in different kinds of programs. The following table shows the Knowledge Items to which this Knowledge Item is a follow-up.

Dependent Variable Knowledge Item
Quality of Life CA-Quality of Life and Health-39
Self-Perceived Symptom Severity CA-Quality of Life and Health-61
Psychological Distress CA-Psychological Distress-14
Self-Perceived Barriers to Services CA-Barriers and Facilitators-30
CD4 Counts CA-Medical Outcomes-14
Karnofsky Severity Rating CA-Medical Outcomes-18
Viral Load CA-Medical Outcomes-22

The hierarchical linear modeling (HLM) results presented throughout this Knowledge Base permit an assessment of whether patients change over time on a variety of outcome measures. 

This Knowledge Item follows up on the prior results by examining whether groups of patients, disaggregated by their drug abuse status, have greater than chance levels of improvement. Overall, there is a tendency for individuals known not to abuse drugs to have significant psychosocial and medical outcomes from their participation in the programs. Prior users of drugs tend to have positive outcomes from the programs. It is less clear that the current substance abusers have such positive outcomes, although in many cases the result may be a function of the much smaller sample of current drug abusers going through the programs and staying long enough to be assessed on multiple occasions. Note that this definition of program success means that a patient is either maintained at baseline level or that the scores have an overall (linear) trend toward improvement throughout the entire course of the treatment episode. The parallel Knowledge Item: Summary of Maximum Patient Outcomes-05 uses an alternate definition of patient successful outcomes and suggests approximately the same result.

Positive Outcomes: Maintained or Enhanced Functioning Over Time During Program
[by Drug Abuse Status]

The following chart is another way of looking at the same data presented in the top figure.

Notes:

  1. Psychosocial Projects did not collect medical indicators.

  2. The number of patients in each group varies by outcome and may be quite small in some cases.

  3. Symptom severity is considered to be a Psychosocial Outcome because the index of symptom severity is derived from patient self reports.

Knowledge Item Citation: Huba, G. J., Panter, A. T., Melchior, L. A., and the HRSA/HAB SPNS Cooperative Agreement Steering Committee (1998-2001). Knowledge Item: CA-Summary of Patient Outcomes-05 from HRSA/HAB's SPNS Cooperative Agreements on Innovative Models of Care, The Measurement Group Knowledge Base on HIV/AIDS Care, Online at www.TheMeasurementGroup.com.

Last Updated: March 25, 2005; data through June 15, 1999; analyses conducted August 2000.




Knowledge Base Citation: The Knowledge Base and this Knowledge Item were designed and authored by G. J. Huba, Ph.D.; in collaboration with Lisa A. Melchior, Ph.D.; A. T. Panter, Ph.D.; and the staff of The Measurement Group. Cite this work as "Huba, G. J., Melchior, L. A., and Panter, A. T. (1998 - 2001). The Measurement Group Knowledge Base on HIV/AIDS Care. On the World Wide Web: http://www.TheMeasurementGroup.com."

Questions or Comments: Contact The Measurement Group.

Use of Knowledge Base Information: Acceptable Uses and Limitations.

Collaborators from Participating Projects: Cooperative Agreement Steering Committee 1999

Participating Projects: This Knowledge Base is based on the service delivery experiences of 27 Cooperative Agreement Projects on Innovative Models of HIV/AIDS Care. These projects and the Evaluation and Dissemination Center which produced this Knowledge Base were funded by the Health Resources and Services Administration (HRSA), HIV/AIDS Bureau (HAB) as Special Projects of National Significance (SPNS) between 1994 and 1999. Click the Model Programs button above for descriptions of the projects that contributed to this specific Knowledge Item, a list of key staff, and project grant numbers.

Why This Evaluation was Conducted: Editorial.

More Information: Design of this Knowledge Base.

Recommended Citation Format for Web Materials: American Psychological Association Publication Manual Section, Revised 2001.

Work on the Knowledge Base and the cross-cutting evaluation was supported in part by Grant Number 5 U90 HA 00030-05 from the Health Resources and Services Administration (HRSA), HIV/AIDS Bureau's (HAB) Special Projects of National Significance (SPNS). The contents of this Knowledge Base are solely the responsibility of The Measurement Group and do not necessarily represent the official views of HRSA or HRSA/HAB's Special Projects of National Significance nor may they represent the positions of the individual grantees whose projects are included in the cross-cutting evaluation.



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