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Table 3 Appearance of respiratory distress signs at PCW and PC20-FEV1

From: Methacholine bronchial provocation measured by spirometry versus wheeze detection in preschool children

Symptom Cough Wheeze Prolonged Audible Expiration Decrease SaO2 Increased HR Increased RR
# Children at PCW 32 26 24 33 28 25
# Children at PC20-FEV1 28 2 7 15 3 7