Table 1: Demographic data of the studied groups.

Continuous
wheeze group
Episodic
wheeze group

(%)27 (51.9)25 (48.1)0.34
Age, median (rang)9 (3–24)9 (5–23.5)0.79
Sex, male (%)21 (77.8)14 (56)0.09
Presence of typical GERD symptoms, (%)10 (37)11 (44)0.81
Abnormal MII-pH, (%)18 (66.6)14 (56)0.2
Reflux esophagitis, (%)6 (22.2)8 (32)0.15

GERD, gastroesophageal reflux disease; MII-pH, multiple channel intraluminal impedance-pH.