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J Am Geriatr Soc. 1998 Dec;46(12):1499-505.

Psychiatric diagnosis and intervention in older and younger patients in a primary care clinic: effect of a screening and diagnostic instrument.

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1
Serious Mental Illness Treatment Research and Evaluation Center, Department of Psychiatry, University of Michigan, Ann Arbor 48113-0170, USA.

Abstract

OBJECTIVES:

To determine whether patient age is associated with psychiatric diagnosis or provider intervention in a busy primary care clinic, and, if so, whether a screening and diagnostic tool, the PRIME-MD, modifies age-related differences.

DESIGN, SETTING, AND PARTICIPANTS:

PRIME-MD use, psychiatric diagnosis, and provider interventions for psychiatric conditions were recorded for eligible patients attending a Veterans Affairs Medical Center primary care clinic. Data from 952 younger (<65 years) and 1135 older patients (> or =65 years) were analyzed to determine whether there were age-related differences in diagnosis/intervention and if use of the PRIME-MD modified these differences.

INTERVENTION:

Implementation of the PRIME-MD, a two-step instrument consisting of a self-administered patient questionnaire and a provider-administered structured diagnostic interview.

MEASUREMENTS:

Outcome measures were rates of (1) PRIME-MD use, (2) overall psychiatric diagnosis, (3) new psychiatric diagnosis, and (4) provider intervention for psychiatric conditions.

RESULTS:

There was no association between patient age and PRIME-MD use. Older patients were less likely to receive a psychiatric diagnosis in analyses that adjusted for "highly positive" screening questionnaires (OR = .45; P<.001). Older patients were also less likely to receive an intervention for a psychiatric condition in analyses that adjusted for whether a psychiatric diagnosis (OR = .62, P = .015) or a new psychiatric diagnosis (OR = .36, P<.001) was made during the study visit. The PRIME-MD increased rates of diagnosis and intervention but did not alter age-related disparities.

CONCLUSIONS:

Decreased rates of psychiatric diagnosis and intervention in older primary care patients are of concern. Implementing the PRIME-MD will likely increase rates of diagnosis and intervention but will need to be accompanied by additional measures to eliminate age-related disparities.

PMID:
9848809
[Indexed for MEDLINE]
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