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Positive and Negative Syndrome Scale

The Positive and Negative Syndrome Scale (PANSS) is a medical scale used for measuring symptom severity of patients with schizophrenia. It was published in 1987 by Stanley Kay, Lewis Opler, and Abraham Fiszbein. It is widely used in the study of antipsychotic therapy. The scale is the "gold standard" for evaluating the effects of psychopharmacological treatments.

Interview items
To assess a patient using PANSS, an approximately 45-minute clinical interview is conducted. The patient is rated from 1 to 7 on 30 different symptoms based on the interview as well as reports of family members or primary care hospital workers. Positive scale 7 Items, (minimum score = 7, maximum score = 49) • Delusions • Conceptual disorganization • Hallucinations • Excitement • Grandiosity • Suspiciousness/persecution • Hostility Negative scale 7 Items, (minimum score = 7, maximum score = 49) • Blunted affect • Emotional withdrawal • Poor rapport • Passive/apathetic social withdrawal • Difficulty in abstract thinking • Lack of spontaneity and flow of conversation • Stereotyped thinking General Psychopathology scale 16 Items, (minimum score = 16, maximum score = 112) • Somatic concern • Anxiety • Guilt feelings • Tension • Mannerisms and posturing • Depression • Motor retardation • Uncooperativeness • Unusual thought content • Disorientation • Poor attention • Lack of judgment and insight • Disturbance of volition • Poor impulse control • Preoccupation • Active social avoidance PANSS Total score minimum = 30, maximum = 210 == Scoring ==
Scoring
As 1 rather than 0 is given as the lowest score for each item, a patient cannot score lower than 30. Scores are often given separately for the positive items, negative items, and general psychopathology. In their original publication on the PANSS scale, Stanley Kay and colleagues tested the scale on 101 adult patients (20-68 years-old) with schizophrenia == See also ==
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