Genotoxic damage assessment using the micronucleus assay in buccal mucosa of different types of smokers: A cross-sectional study

Table 2 Distribution of lesions and affected anatomical sites

Variables		NS	CS	MS	ES	RS	Total
Type of lesion (presumptive diagnosis)	Absent	20	7	16	15	0	58
	White lesions (leukoplakia)	0	3	1	2	6	12
	Red and/or heterogeneous lesions (erythroplasia/Leukoerythroplasia)	0	0	0	0	3	3
	Reverse smoker’s palate	0	0	0	0	16	14
	Carcinoma in situ	0	0	0	1	1	2
	Melanosis	0	5	0	0	14	21
	Leukoedema	0	5	3	2	2	12
Anatomical site	Palate	0	5	0	2	20	27
	Tongue	0	1	0	1	4	6
	Buccal mucosa	0	6	4	2	10	22
	Gingiva	0	8	0	0	3	11
	Oropharynx	0	0	0	2	0	2
	Lips	0	2	0	0	1	3

NS: Non-smokers; CS: Conventional smokers; MS: Marijuana smokers; ES: Electronic cigarette smokers; RS: Reverse smokers.