Table 1

Questions on cough and GERD symptoms


Weighted Kappa


For each symptom, please circle if cough are related
(95% CI)
A. Heartburn
0.85 (0.60, 1)
     always/sometimes/occasionally/never

B. Vomiting or regurgitation without any cause
0.89 (0.69, 1)
     always/sometimes/occasionally/never

C. Regurgitation that is swallowed (seen or heard)
0.89 (0.61, 1)
     always/sometimes/occasionally/never

D. Difficulty in swallowing
1.0
     always/sometimes/occasionally/never

E. Wakes up at night with pain or abdominal discomfort
0.71 (0.38, 1)
     always/sometimes/occasionally/never

F. A bitter taste in the mouth or pooling of saliva in the mouth
0.79 (0.59,1.0)
     always/sometimes/occasionally/never


Chang et al. BMC Pediatrics 2006 6:4   doi:10.1186/1471-2431-6-4