Table 3. Comparison among people who have/have not been diagnosed with GERD.

Variables	Have you ever been diagnosed with GERD or heartburn?
		No		Yes
		300	43.4%	391	56.6%
		Frequency	%	Frequency	%
Do you suffer from any diseases?	No	262	37.9%	260	37.6%
	Hypertension	5	0.7%	27	3.9%
	Diabetes	10	1.4%	36	5.2%
	Heart diseases	6	0.9%	10	1.4%
	Dyslipidemia	3	0.4%	28	4.1%
	Stroke	0	0.0%	3	0.4%
	Other diseases	14	2.0%	27	3.9%
Have you ever heard about heart attacks?	No	23	3.3%	36	5.2%
	Yes	277	40.1%	355	51.4%
Do you know anyone who has had a heart attack before?	No	125	18.1%	122	17.7%
	Yes	175	25.3%	269	38.9%
Have you ever received any information related to heart attacks?	No	99	14.3%	115	16.8%
	Yes				39.8%
Does sudden heart attack require prompt treatment?	No	25	3.6%	32	4.6%
	Yes	285	39.8%	359	52.0%
	Take them to hospital.	143	20.7%	170	24.6%
If someone shows signs and symptoms of a heart attack, what do you think should do first?	Call his/her doctors	9	1.3%	20	2.9%
	Call an ambulance	146	21.1%	196	28.4%
	Contact their family	2	0.3%	5	0.7%
	Other actions	0	0.0%	0	0.0%
If you want to call an ambulance, do you know the phone number?	No	60	8.7%	60	8.7%
	Yes	240	34.7	331	47.9%
Have you heard about the risk factors of heart attacks?	No	76	11.0%	84	12.2%
	Yes	224	32.4%	307	44.4%