Table 3.

Multivariate analysis

Variable	Univanate analysis P value	Multiple variable analysis	P value
		OR (95% CI)
Male gender	<0.01†	1.71 (1.13–2.59)	0.012
Age	<0.01†	1.04 (1.02–1.06)	<0.01
BMI (increments of 5)	0.403	0.997 (0.88–1.13)	0.96
Smoking status	0.682	1.09 (0.69–1.68)	0.71
Obstructive sleep apnea	<0.01†	3.26 (1.72–6.85)	<0.01
Hiatal hernia	0.685	0.98 (0.62–1.53)	0.939
GERD	0.010†	2.23 (1.45–3.49)	<0.01
Helicobacter pylori positivity	0.607	1.39 (0.55–3.09)	0.44

^†Denotes significance.

BMI, body mass index; GERD, gastroesophageal reflux disease.