The Influence of Monoamine Oxidase Variants on the Risk of Betel Quid-Associated Oral and Pharyngeal Cancer

Table 2

Clinical characteristics and substance use status comparison of male BQ chewers with oral cancer ().

Number	Age	Tumor site	ICD 9 code	TNM	Stage	Pathological diagnosis	A^a	B^b	C^c
136	45	Tongue	141	T2N1M0	III	SCC^d	+	+	+
149	71	Oral	145.9	T2N0M0	II	Verrucous carcinoma	−	+	+
152	46	Tongue	141	T2N0M0	II	SCC	+	+	+
154	39	Buccal	145	T3N0M0	III	SCC	+	+	+
156	57	Buccal	145	T3N0M0	III	SCC, grand II	NA	+	+
163	39	Oral	145.9	T2N0M0	II	SCC, grand II	−	+	+
167	45	Tongue	141	T2N0M0	II	SCC, grand II	+	+	+
168	56	Buccal	145	T2N0M0	II	SCC	+	+	−
174	45	Buccal	145	T4N1M0	IV A	SCC	−	+	+
186	46	Buccal	145	T4N1M0	IV A	SCC	+	+	+

Alcohol use.
^bBetel use.
^cCigarette use.
^dSCC: squamous cell carcinoma.
NA: no information can be available.