The GAF and psychiatric outcome: a descriptive report

Area of Science:

• Psychiatry
• Clinical Psychology
• Healthcare Assessment

Background:

• The Global Assessment of Functioning Scale (GAF) has been a standard clinical tool since its introduction in DSM-III-R.
• Despite widespread use, the GAF has been minimally researched, particularly regarding its application in routine clinical practice.
• Previous research has not fully explored the GAF's reliability and validity across diverse patient populations and treatment settings.

Purpose of the Study:

• To investigate the application and outcomes of the Global Assessment of Functioning Scale (GAF) in routine psychiatric clinical practice.
• To assess changes in patient functioning levels as measured by the GAF from admission to discharge.
• To identify potential factors influencing GAF ratings, such as patient demographics and the scale's instructional clarity.

Main Methods:

• Clinicians administered the GAF to adult inpatients, adult day hospital patients, and adolescent inpatients.
• GAF ratings were collected at both admission and discharge from psychiatric treatment.
• Statistical analyses were performed to compare GAF scores between admission and discharge, and between adult and adolescent samples.

Main Results:

• All patient groups (adult inpatients, adult day hospital patients, adolescent inpatients) showed statistically significant improvements in functioning from admission to discharge.
• Significant differences in mean dysfunction levels were observed between adult and adolescent samples at both admission and discharge.
• Hypothesized discrepancies in GAF ratings may stem from the scale's unclear instructional format.

Conclusions:

• The Global Assessment of Functioning Scale (GAF) demonstrates sensitivity to change in psychiatric patients, reflecting clinical improvement.
• Differences in GAF scores between adult and adolescent populations suggest potential demographic influences or interpretation variations.
• The study highlights the need for clearer GAF instructions to enhance consistency and reliability in clinical assessments, with findings likely applicable to DSM-IV.