1 / 17

The Cigarette Withdrawal Scale CWS-21

The Cigarette Withdrawal Scale CWS-21. Jean-François E T T E R, PhD Institute of social and preventive medicine Faculty of Medicine University of Geneva Switzerland. Background. Valid measurement is essential to science

elmo-barr
Télécharger la présentation

The Cigarette Withdrawal Scale CWS-21

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The Cigarette Withdrawal ScaleCWS-21 Jean-François E T T E R, PhD Institute of social and preventive medicine Faculty of Medicine University of Geneva Switzerland

  2. Background • Valid measurement is essential to science • Comprehensive validation studies are lacking, for most withdrawal scales • Available scales were developed in UK or USA, and may not reflect situation in other countries • Some widely used scales are not recent: - Minnesota Withdrawal Scale (Hughes) = 1986 - Shiffman-Jarvik = 1976

  3. Objective To develop and assess the validity of a new, self-administered scale measuring cigarette withdrawal symptoms, using state-of-the-art psychometric methods

  4. Qualitative survey: methods • Questionnaires sent out by mail to a representative population sample in Geneva, n=2,000 • "Please describe how a smoker feels when he is deprived of nicotine" • 404 answers from smokers and ex-smokers

  5. Qualitative survey: results • Nervous, impatient 288 • Irritable, bad mood, frustrated 158 • Urgent, strong need to smoke 116 • Somatic signs (various) 91 • Anxiety, fear 72 • Stressed 57 • Difficulty concentrating 51 • Increased appetite 48 • Depressed, sad 29 • Insomnia, fatigue 26

  6. Methods • Qualitative data + theory (DSM, ICD) = 61 items • 5-point Likert scales (agree-disagree) • Survey on STOP-TABAC.CH, in French • N=3,050 • Retest after 17 days (n=118) • Follow-up after 41 days (n=1,119)

  7. Results • 21-item scale • 6 dimensions, cover DSM-IV and ICD-10 • Sound factor structure (bootstrap resampling) • Depression-Anxiety • Craving • Irritability- Nervousness-Impatience • Appetite-Weight Gain • Insomnia • Difficulty Concentrating

  8. Reliability

  9. Relapse at 41 days: odds ratios

  10. Change 0-17 days in recent quitters

  11. Scores for various intervals post-quit

  12. Conclusions • CWS-21 is a reliable withdrawal scale, • performed well on tests of construct validity, • is sentitive to change over time • predicts relapse

  13. Get these slides and CWS-21 at: • STOP-TABAC.CH => Documents

More Related