Risk factors		RQS^Ò				p
		≥16 (n = 38)		<16 (n = 62)
		n	%	n	%
Age	≥40 years	18	47	49	79	0.01
Age	<40 years	20	53	13	21	0.01
Sex	Female	21	55	47	76	0.03
Sex	Male	17	45	15	24	0.03
Frequency	yes	15	39	48	77	0.001
Frequency	no	23	61	14	23	0.001
PPIs intake	yes	9	24	45	73	0.001
PPIs intake	no	29	76	17	27	0.001
Chronic smoking	yes	9	24	11	18	0.3
Chronic smoking	no	29	76	51	82	0.3