Table 1

 Clinical characteristics of patients with GORD and cough and normal subjects

Patients with GORD and cough(n = 15)Healthy control subjects(n = 10)
*Denotes significant difference (p<0.05).
Male83
Mean age (years)59*34.5
Age range (years)29–7221–65
24 hour oesophageal pH monitoring13
% of total time pH <4
    Mean (SD)7.8 (2.2)*0.74 (0.17)
    Range2.4–42.9*0.3–3.9
No of reflux events over 24 hours
    Mean56.3*14.8
    Range42–1123–26
Endoscopy grading14
    Normal (grade 0)
    Mild to moderate(grade 1–2)4
    Severe (grade 3–4)