3.3 Diagnostic criteria
When diagnosing bronchiolitis, 44.01% (103/234) of participants
correctly included the presence of all the following criteria: onset
with rhinorrhea and/or upper respiratory tract infections; first episode
of respiratory distress associated with crackles and/or wheezing, use of
accessory muscles or lower chest wall retractions, low O2 saturation
levels, high respiratory rate relative to age, skin colour changes,
nasal flaring, fever; exposure to persons presenting with upper
respiratory tract viral infections; and presentation during the epidemic
season. For 5.5% (13/234) of participants, diagnostic criteria included
rhinorrhea and/or upper respiratory tract infections. For 33.76%
(79/234) of participants, diagnostic criteria included the first episode
of respiratory distress associated with crackles and/or wheezing, use of
accessory muscles or lower chest wall retractions, low O2 saturation
levels, high respiratory rate relative to age, skin colour changes,
nasal flaring, fever. For 6% (14/234) of participants, diagnostic
criteria included exposure to persons presenting with upper respiratory
tract viral infections. For 10.68% (25/234) of participants, diagnostic
criteria included clinical presentation during the epidemic season.