Sleep Related Questionnaires

Cataplexy Questionnaire

Name of questionnaire Cataplexy Questionnaire
Type of original questionnaire-description, age/population

Self-administered narcolepsy questionnaire with focus on cataplexy-obtained from the cataplexy section of the Stanford Center for Narcolepsy Sleep Inventory.
Ages 1-92 years, mostly Caucasians

Number of items 51
Number of domains & categories 3
Name of categories/domains

1. Muscle weakness trigger.
2. Type of attack.
3. Other in relation to injury or witnessed by others

Scaling of items Check-list of questions with multiple choice or yes/no answers
Scoring available: with permission or free With permission; contact developer for scoring
Scoring test-retest reliability Not evaluated
Scoring Internal consistency Not evaluated
Validity Validated against impression of sleep specialist blinded to content of questionnaire
Available forms (short and/or long etc.) Long
Language English
Translations in other languages (if yes, then list the languages) N/A
Developer(s) name Emmanuel Mignot
Developer contact information for permission mignot@stanford.edu
Availability of questionnaire: needs permission from developer, cost or freely available Questionnaire available within original publication
Limitations Test-retest reliability information not available
Link to the questionnaire (if available) N/A
Other comments

Questionnaire determined that cataplexy was best differentiated from other types of muscle weakness when triggered by only three typical situations: "when hearing and telling a joke," "while laughing," or "when angry." Face or neck, rather than limbs, were also more specifically involved in clear-cut cataplexy.

Other items, such as length of attacks, bilaterality, and alteration in consciousness, were poorly predictive.

Patient populations in who questionnaire has been validated Patients referred to a Sleep Disorder Clinic
References (including original publication, validity and reliability in different countries/languages, populations and long/short versions) Anic-Labat S, Guilleminault C, Kraemer HC, Meehan J, Arrigoni J, Mignot E. Validation of a cataplexy questionnaire in 983 sleep-disorder patients. Sleep 1999;22:77-87.
Updated by Shazia M. Jamil
The last date of update April 2023