Table 2

		Placebo gargle	Rebamipide gargle	P
Sex (Male/Female)		7/5	7/5
Age (years)	31-40	0	2	χ² = 6.8; df = 5; P = 0.238^b
	41-50	0	2
	51-60	5	5
	61-70	2	2
	71-80	4	1
	81-90	1	0
Mean age (SD)		65.9 (10.8)	54.9 (11.5)	0.077^b
Primary site of cancer
Maxillary gingiva		3	2	χ² = 3.7; df = 4; P = 0.522^b
Mandibular gingiva		4	3
Tongue		2	6
Oral floor		2	1
Buccal mucosa		1	0
Initial/relapse		11/1	11/1
Stage of cancer
Stage I		0	4	χ² = 6.0; df = 3; P = 0.125^b
Stage II		4	4
Stage III		1	1
Stage IV		6	2
T size of cancer
T₁		0	4	χ² = 7.2; df = 3; P = 0.065^b
T₂		5	5
T₃		3	2
T₄		3	0
WBC^a count at baseline, mean (SD)		6.56 (1.83)	5.80 (2.15)	0.34^b
Neutrophil^a count at baseline, mean (SD)		3.94 (1.37)	3.61 (2.15)	0.48^b

^a×10³ cells/mm³.
^bNo statistically significant at the level P < 0.05 (Monte Carlo test).
SD = Standard deviation; WBC = White Blood Cell; χ² = Chi-Square.