Rxivist logo

Rxivist combines preprints from bioRxiv with data from Twitter to help you find the papers being discussed in your field. Currently indexing 57,793 bioRxiv papers from 266,023 authors.

Abbreviated assessment of psychopathology in patients with suspected seizure disorders

By Charles B Malpas, Albert Wang, Michelle Leong, Ben Johnstone, Genevieve Rayner, Tomas Kalincik, Patrick Kwan, Terence J O'Brien, Dennis Velakoulis

Posted 20 Jun 2019
bioRxiv DOI: 10.1101/677278

Objectives: Psychopathology is common in patients undergoing investigation for seizure-related disorders. Psychometric examination using self-report instruments, such as the SCL-90-R, can assist diagnosis. The SCL-90-R, however, is a lengthy instrument and might not be tolerated by all patients. We assessed several abbreviated forms of the SCL-90-R in patients undergoing video encephalographic monitoring (VEM). Methods: 687 patients completed the SCL-90-R and scores were computed for the full SCL-90-R and five abbreviated forms. Correlations and mean differences were computed between different forms. Classification accuracy was assessed via receiver operating characteristic (ROC) curves, and measurements models were examined using confirmatory factor analysis (CFA). Results: All abbreviated forms were strongly correlated with the SCL-90-R for general psychopathology (r = .93 - .99), depression (r = .89 - .95), and anxiety (r = .97 - .98). Classification performance was similar across forms, showing high negative predictive values for depression and anxiety (.90 - .94), but lower positive predictive values (.34 - .38). Differences were observed between the full SCL-90-R and its abbreviated forms across most domains (d = 0.00 - 0.65). The published measurement model was most strongly validated for the SCL-27, SCL-14, and the SCL-K-9. Conclusions: These five SCL-90-R abbreviated forms show high convergent validity with the full version. In patients undergoing investigation for seizure-related disorders, the BSI or BSI- 18 are most appropriate where screening for both depression and anxiety is required. The SCL-K-9 is appropriate when only a single measure of global psychological distress is required. Caution should be exercised when making direct comparisons across the different forms.

Download data

  • Downloaded 43 times
  • Download rankings, all-time:
    • Site-wide: 56,273 out of 57,793
    • In neuroscience: 9,920 out of 10,199
  • Year to date:
    • Site-wide: 52,951 out of 57,793
  • Since beginning of last month:
    • Site-wide: 33,471 out of 57,793

Altmetric data

Downloads over time

Distribution of downloads per paper, site-wide

Sign up for the Rxivist weekly newsletter! (Click here for more details.)