Item reduction of the Wisconsin Upper Respiratory Symptom Survey (WURSS-21) leads to the WURSS-11.

ABSTRACT:

Purpose

To develop a shorter version of the Wisconsin Upper Respiratory Symptom Survey (WURSS-21), a self-report questionnaire for evaluating daily symptoms and functional impairments during acute respiratory illness (ARI).

Methods

WURSS-21 data were retrieved from 4 studies (n = 1167) spanning the years 2002-2010. Similar methodologies were employed among these studies. Degree of missingness, ceiling/floor effects, and exploratory (EFA) and confirmatory (CFA) factor analyses were investigated and used to guide item retention. Stability of the reduced WURSS was evaluated across the first 3 days of ARI.

Results

Degree of missingness was <1 % and appeared to be completely at random. Seven WURSS items with >30 % of ratings of zero (floor effects) were eliminated. Cross-l

SUBMITTER: Obasi CN 

PROVIDER: S-EPMC3966930 | biostudies-literature | 2014 May

REPOSITORIES: biostudies-literature