Abstract
Sources of variability in nasal airway resistance measured by posterior rhinomanometry were studied in 5 subjects tested on 5 different days and 56 subjects tested on 2 different days. On each day, a questionnaire on upper airway health and nasal symptoms was completed. The mean individual difference in nasal airway resistance between the 2 test days in the group of 56 subjects was 5.3% (SD 52.7%). Between-subject variability accounted for 74.9% and 72.5% of the total variability in the group of 5 and the group of 56 subjects, respectively. For the 5 subjects, by accounting for a change in upper airway symptoms or upper respiratory tract infection that occurred over the 5 test days, there was a significant decrease in the between-subject variability. The difference in sources of variation due to a change in upper airway symptoms was not seen in the group of 56 subjects. We conclude that the largest source of variability in nasal airway resistance is due to between-subject differences.
Original language | English (US) |
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Pages (from-to) | 631-638 |
Number of pages | 8 |
Journal | Annals of Otology, Rhinology & Laryngology |
Volume | 102 |
Issue number | 8 |
DOIs | |
State | Published - Aug 1993 |
Externally published | Yes |
Keywords
- nasal airway resistance
- rhinomanometry
ASJC Scopus subject areas
- Otorhinolaryngology