Table 5 Correlation (logistic regression test) between the variables of the esophageal manometry and surface electromyography (EMG) values in patients with Chagas’ disease (n = 29).

From: Suprahyoid Muscle Activity in Patients with Chagasic Megaesophagus

EMG

LES

Esophageal body

UES

Resting Pressure

Distal Amplitude

Distal Duration

Resting Pressure

p value

p value

p value

p value

MVIC

0.555

0.786

0.326

0.872

SL

0.230

0.547

0.408

0.332

SP

0.415

0.572

0.294

0.150

  1. LES: lower esophageal sphincter; UES: upper esophageal sphincter; MVIC: maximum voluntary isometric contraction; SL: swallowing liquid; SP: swallowing paste.
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