Table 1: Factors linked with the presence or absence of esophageal symptoms.

Esophageal symptoms
Presence ( 𝑛 = 1 1 8 )Absence ( 𝑛 = 7 6 ) 𝑃

Limited/diffuse form91/2767/90.05
Duration of the disease (years)7.2 ± 75 ± 7.80.22
Reflux esophagitis60 (50.8%)13 (17.1%)<0.001
EMDs109 (92.3%)48 (63.1%)<0.001

EMDs: esophageal motor disorders.