Table 4. . Patient responses to GerdQ for each item in terms of the number and percentage of patients prior to COVID-19 and the changes that occurred to symptomatic frequency during the COVID-19 pandemic.

Question	Frequency score (points) for symptom before COVID-19				Frequency score (points) for symptom during COVID-19
	0 day, n (%)	1 day, n (%)	2–3 day, n (%)	4–7 day, n (%)	0 day, n (%)	1 day, n (%)	2–3 day, n (%)	4–7 day, n (%)
How often did you have a burning feeling behind your breastbone (heartburn)?	69 (34.8%)	73 (36.9%)	39 (19.7%)	17 (8.6%)	57 (28.8%)	65 (32.8%)	53 (26.8%)	23 (11.6%)
How often did you have stomach contents (liquid or food) moving upwards to your throat or mouth (regurgitation)?	74 (37.4%)	69 (34.8%)	44 (22.2%)	11 (5.6%)	68 (34.3%)	65 (32.8%)	49 (24.7%)	16 (8.1%)
How often did you have pain in the center of the upper stomach?	39 (19.7%)	49 (24.7%)	57 (28.8%)	53 (26.8%)	44 (22.2%)	52 (26.3%)	56 (28.3%)	46 (23.2%)
How often did you have nausea?	43 (21.7)	62 (31.3%)	49 (24.7%)	44 (22.2%)	54 (27.3%)	64 (32.3%)	43 (21.7%)	37 (18.7%)
How often did you have difficulty getting a good night's sleep because of your heartburn and/or regurgitation?	79 (17.6)	73 (27.6%)	33 (33.8%)	13 (21.0%)	75 (11.4%)	74 (37.4%)	31 (15.7%)	18 (9.1%)
How often did you take additional medication or increase the dose for your heartburn and/or regurgitation, other than what the physician told you to take)	68 (34.3%)	76 (38.4%)	33 (16.7%)	21 (10.6%)	69 (34.8%)	76 (38.4%)	31 (15.7%)	22 (11.1%)