Validity and reliability of the Niigata PPPD Questionnaire in a Western population.

ABSTRACT:

Purpose

To analyze the psychometric properties of the Niigata Questionnaire (NPQ) for use in a European population with persistent postural-perceptual dizziness (PPPD).

Methods

Observational study included 140 patients with different vestibular conditions. Construct validity, internal consistency and concurrent validity were analyzed. Intra-class correlation coefficient (ICC), standard error of measurement (SEM) and minimal detectable change (MDC) were calculated. Receiver operating characteristic (ROC) curve was used to test diagnostic values.

Results

Of the 140 patients, 47 had a diagnosis of PPPD. Factorial analysis showed a single-factor structure and concurrent validity analysis showed strong correlations with other instruments. Cronbach alpha coefficients of 0.9

SUBMITTER: Castillejos-Carrasco-Munoz R 

PROVIDER: S-EPMC10620260 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature