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Table 2 Frequencies and comparison between symptoms and relevant characteristics with the presence of esophageal dilation.

From: Air column in esophagus and symptoms of gastroesophageal reflux disease

characteristics presence of esophageal dilation comparing with the reference values/yes, no question
  SV CV V-LES
  ED-**
20.50%
ED+
79.50%
ED-
41.90%
ED+
70.50%
ED-
29.50%
ED+
Chronic coughs       
% * 44.4% 71.4% 55.6% 72% 58.1% 84.6%
P-value 0.235 0.264 0.162
Smoking       
% 11.1% 41.2% 41.2% 32% 30% 46.2%
P-value 0.129 0.542 0.324
History of taking proton       
pump inhibitors       
% 22.2% 25.7% 33.3% 20% 25.8% 23.1%
P-value 1 0.48 1
Hiatal hernia       
% 0% 14.3% 16.7% 8% 0% 38.5%
P-value 0.566 0.634 0.01
Heartburn       
% 22.1% 51.4% 61.1% 36% 32.3% 76.9%
P-value 0.15 0.103 0.007
Epigastric pain       
% 33.3% 40% 44.4% 36% 35.5% 46.2%
P-value 1 0.576 0.507
Regurgitation       
% 44.4% 60% 55.6% 60% 48.4% 76.9%
P-value 0.467 0.771 0.081
History of pregnancy(in women)       
% 80% 63.2% 83.3% 58.8% 70.6% 57.1%
P-value 0.702 0.407 0.738
  1. * Percent of patients who presented symptom (positive symptom).
  2. **- shows cases with no ED and + shows cases wi