Translation and Psychometric Validation of the Patient-Reported Apnea Questionnaire (PRAQ) for Assessing Health-Related Quality of Life in Obstructive Sleep Apnea

Translation and Psychometric Validation of the Patient-Reported Apnea Questionnaire (PRAQ) for Assessing Health-Related Quality of Life in Obstructive Sleep Apnea - PRAQ-D

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00037082

Enrollment

200

Registered

2026-04-01

Start date

2026-04-15

Completion date

Unknown

Last updated

2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

G47.31

Interventions

Group 1: Patients receive the German translation of the PRAQ (PRAQ-D) at three time points, as well as additional questionnaires to assess convergent validity.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Adult patients with suspected obstructive sleep apnea requiring treatment

Exclusion criteria

Exclusion criteria: • Patients in whom there is no OSA requiring treatment. • Patients who are unable to understand the questionnaire or to answer the questions independently (cognitive impairment). • Pediatric patients. • Patients represented by a court-appointed guardian. • Patients with missing or limited German language proficiency.

Design outcomes

Primary

Measure	Time frame
Validation of the German version of the PRAQ (PRAQ-D) and comparison with the Dutch version of the PRAQ with respect to psychometric parameters across three time points: baseline (V1), test–retest after 10–14 days (V2), and follow-up after 6–8 weeks following stable therapy initiation (V3).	—

Countries

Germany

Contacts

Public ContactChristoph Schöbel

Universitätsmedizin Essen - Ruhrlandklinik

schlafinfo@rlk.uk-essen.de+49 201 433 01

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: May 1, 2026