Table 2.

Factors associated with recurrence in oral cancer patients who underwent surgery during June 2009–June 2013 at Malabar Cancer Centre, Thalassery, Kerala, India

Variables	Factors		Recurrence status				p value
		Total	Present		Absent
			N	%	N	%
Use of Tobacco	Tobacco smoking	90	17	18.9	73	81.1	0.82
	Tobacco chewing	145	28	19.3	117	80.7	0.55
	Use of alcohol	82	13	15.9	69	84.1	0.49
Site of primary	Bucco alveolar	99	15	15.2	84	84.8	0.29
	Tongue/floor of mouth	121	25	20.7	96	79.3
Neck dissection	Ipsilateral neck dissection	206	38	18.4	168	81.6	0.69
	Selective neck dissection	93	14	15.1	79	84.9	0.25
	Comprehensive neck dissection	113	24	21.2	89	78.8
	Contralateral neck dissection	24	3	12.5	21	87.5	0.45
Histopathology	Positive margin*	5	1	20	4	80	0.72
	Ipsilateral node positive	61	19	31.1	42	68.9	0.002
	Contralateral node positive	6	1	16.7	5	83.3	0.92
	Extra capsular spread	17	6	35.3	11	64.7	0.5
	Perineural invasion	26	7	26.9	19	73.1	0.22
	Advanced stage	118	28	23.7	90	76.3	0.02

*Positive margin—reported in final histopathology