Figure 2.
3-dimensional factor model of Wisconsin Upper Respiratory Symptom Survey (WURSS-11)*
*Standardized values
The 3 dimensions are Nasal (Runny nose, Plugged nose, Sneezing), Throat (Cough, Sore and Scratchy throat) and QOL (Feeling tired, Think clearly, Accomplish daily activities). Introductory “How sick do you feel today?” and concluding item “Compared to yesterday, I feel…? which measure different time frames were not included during the analysis but will be added to the retained 9 items to form the WURSS-11.