biostudies-literatureObasi CNNCATS NIH HHSNCCIH NIH HHSNCRR NIH HHSPHS HHS1293-8https://www.ebi.ac.uk/biostudies/studies/S-EPMC3966930biostudies-literatureUnknown23(4)<h4>Purpose</h4>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).<h4>Methods</h4>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.<h4>Results</h4>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-lQuality of life research : an international journal of quality of life aspects of treatment, care and rehabilitationItem reduction of the Wisconsin Upper Respiratory Symptom Survey (WURSS-21) leads to the WURSS-11.PMC39669301R01AT001428K23 AT000051R01 AT004313K24AT006543T32 AT000051R01 AT001428K24 AT0065431R01AT004313M01 RR03186F32 AT000051UL1 TR000427T32HP10010K23 AT00051-01UL1 RR0250111UL1RR025011M01 RR003186Barrett BPBrown RLObasi CNfalseItem reduction of the Wisconsin Upper Respiratory Symptom Survey (WURSS-21) leads to the WURSS-11.<h4>Purpose</h4>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).<h4>Methods</h4>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.<h4>Results</h4>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-l2014-01-01T00:00:00Z2014 May2025-04-04T01:26:43.616Z2019-03-27T01:24:00ZS-EPMC39669302414223710.1007/s11136-013-0561-z