Table 3.

Comparison between groups using Mann–Whitney U test (n = 20).

Item	Category	Median (IQR)	p-Value
ACE2-receptor-positive proportion of tongue
Age	Low group	17.7 (11.0–29.1)	0.50
	High group	18.7 (7.7–24.5)
Gender	Male	11.2 (6.7–23.1)	0.14
	Female	19.6 (14.5–28.2)
Alcohol consumption	Regular drinkers	18.7 (6.8–25.3)	1.00
	None or Social drinkers	17.7 (8.6–25.4)
Smoking history	Yes	25.4 (14.0–29.1)	0.14
	No	16.2 (7.7–22.4)
Brinkman index	Low group	16.2 (7.7–22.4)	0.14
	High group	25.4 (14.0–29.1)
ACE2-receptor-positive proportion of Palate
Age	Low group	1.9 (0.9–3.6)	0.94
	High group	2.2 (0.9–2.7)
Gender	Male	1.6 (0.9–2.2)	0.19
	Female	2.6 (1.1–3.2)
Alcohol consumption	Regular drinkers	2.5 (2.1–3.0)	0.17
	None or Social drinkers	1.4 (0.8–2.7)
Smoking history	Yes	2.2 (1.7–2.5)	0.80
	No	1.8 (0.8–3.2)
Brinkman index	Low group	1.8 (0.8–3.2)	0.80
	High group	2.2 (1.7–2.5)
ACE2-receptor-positive proportion of Gingiva
Age	Low group	17.1 (11.8–20.1)	0.30
	High group	11.9 (3.7–22.5)
Gender	Male	15.6 (8.1–20.1)	0.91
	Female	13.9 (6.4–23.5)
Alcohol consumption	Regular drinkers	11.9 (6.6–38.2)	0.87
	None or Social drinkers	15.2 (8.9–19.2)
Smoking history	Yes	21.0 (10.0–33.9)	0.23
	No	12.6 (7.3–19.2)
Brinkman index	Low group	12.6 (7.3–19.2)	0.23
	High group	21.0 (10.0–33.9)