SCAN

SCAN or Schedules for Clinical Assessment in Neuropsychiatry is a set of tools created by WHO aimed at diagnosing and measuring mental illness that may occur in adult life. It is not constructed explicitly for use with either ICD-10 or DSM-IV but can be used for both systems. The SCAN system was originally called PSE, or Present State Examination, but since version 10 (PSE-10), the commonly accepted name has been SCAN. The current version of SCAN is 2.1.

The entire SCAN interview consists of 1,872 items, spread out over 28 sections. Most patients, however, will only need parts of the interview, and it is assessed in the beginning of each section if the section is actually relevant. The sections are as follows:

The first section in the SCAN interview is concerned with sociodemographic items such as age, gender, education, etc.

In section 1 (the second section), the interviewer starts to ask the respondent or patient about what kinds of symptoms has been experienced. This section is not used in diagnosis, but it is intended as a help for the interviewer to determine which items in the interview to emphasize on. As such, it is a screening tool for part 1 of the interview (sections 2 to 13).

Section 2 is primarily centered on somatoform and dissociative symptoms and is rated both by using direct questions and by observing the patient.

Section 3 explores the degree of worrying and tension in the patient, by direct questions about feelings of worrying, nervous tension, muscular tension, fatiguability, noise sensitivity, etc.

Section 4 measures the degree and physiological reactions associated with potential anxiety attacks and phobias, including behaviour in which situations are avoided due to phobias. Fear of dying and generalized anxiety disorder are also measured.

Section 5 explores, by direct questions, whether the respondent experiences behaviour characteristic of OCD.

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