Table 4: Results of multiple logistic regression analysis of GERD in Parkinson’s disease.

Odds ratio95% CIP value

Gender0.680.09–5.32NS
Age1.950.31–12.09NS
Disease duration1.000.99–1.01NS
Wearing-off phenomenon3.470.37–32.85NS
UPDRS part II1.351.03–1.770.03
PDQ-391.000.94–1.05NS
NMSS1.051.00–1.100.05

NS: no significance; GERD: gastroesophageal reflux disease; CI: confidence interval; UPDRS: unified Parkinson’s disease rating scale; PDQ-39: Parkinson’s disease questionnaire-39; NMSS: nonmotor symptom scale.