Table 1. Demographic data on patients with and without gastroesophageal reflux disease.

Variables	GERD (n = 29,688)		Control (n = 29,597)		p-value
Age (years)	50.99±16.61		50.85±16.85		0.311
Male	14,373	(48.41%)	14,333	(48.43%)	0.974
Hypertension	11,366	(38.28%)	11,324	(38.26%)	0.953
Diabetes mellitus	6,979	(23.51%)	6,931	(23.42%)	0.801
Hyperlipidemia	10,180	(34.29%)	10,137	(34.25%)	0.924
Congestive heart failure	2,003	(6.75%)	1,939	(6.55%)	0.347
Coronary artery disease	8,457	(28.49%)	8,402	(28.39%)	0.792
Ischemic stroke	2,489	(8.38%)	2,431	(8.21%)	0.457
Chronic obstructive pulmonary disease	13,287	(44.76%)	13,233	(44.71%)	0.914
Thyrotoxicosis	1,800	(6.06%)	1,745	(5.90%)	0.396

GERD, gastroesophageal reflux disease.