Table 2. Distribution of Saliva Inventory Scale in patients with COVID-19 (n = 301).

Q	Saliva Inventory Scale	COVID-19 Patients
		S	Never		Hardly ever		Occasionally		Fairly often		Very often
			n	%	n	%	n	%	n	%	n	%
1.	I sip liquids to help swallow food.	A	172	57.1	40	3.3	63	20.9	16	5.3	10	3.3
		R	185	61.5	51	16.9	44	14.6	13	4.3	8	2.7
2.	My mouth feels dry when eating a meal	A	174	57.8	30	10	53	17.6	30	10.0	14	4.7
		R	181	60.1	46	15.3	43	14.3	25	8.3	6	2.0
3.	I get up at night to drink.	A	140	46.5	42	14.0	56	18.6	44	14.6	19	6.3
		R	149	49.5	48	15.9	55	18.3	34	11.3	15	5.0
4.	My mouth feels dry	A	112	37.2	70	23.3	74	24.6	30	10.0	15	5.0
		R	120	39.9	76	25.2	66	21.9	26	8.6	13	4.3
5.	I have difficulty in eating dry foods	A	169	56.1	37	12.3	45	15.0	34	11.3	16	5.3
		R	173	57.5	51	16.9	46	15.3	22	7.3	9	3.0
6.	I suck sweets or cough lollies to relive dry mouth	A	193	64.1	40	13.3	35	11.6	27	9.0	6	2.0
		R	186	61.8	53	17.6	36	12.0	15	5.0	11	3.7
7.	I have difficulties swallowing certain foods	A	177	58.8	49	16.3	43	14.3	26	8.6	6	2.0
		R	179	59.5	42	14.0	45	15.0	26	8.6	9	3.0
8.	The skin of my face feels dry	A	162	53.8	44	14.6	42	14.0	24	8.0	14	4.7
		R	150	49.8	71	23.6	42	14.0	24	8.0	14	4.7
9.	My eyes feel dry	A	176	58.5	39	13.0	44	14.6	28	9.3	14	4.7
		R	174	57.8	58	19.3	37	12.3	15	5.0	17	5.6
10.	My lips feel dry	A	101	33.6	73	24.3	69	22.9	38	12.6	20	6.6
		R	105	34.9	86	28.6	64	21.3	28	9.3	18	6.0
11.	The inside of my nose feels dry	A	162	53.8	41	13.6	54	17.9	32	10.6	12	4.0
		R	174	57.8	39	13.0	49	16.3	29	9.6	10	3.3

Notes.

Q

question

Saliva Inventory Scale

The top readings in each question are responses from active COVID-19 patients (A) while bottom readings are from COVID-19 recovered patients (R)

n

frequency

%

percentage

COVID-19

coronavirus disease 2019

S

patient status