Improved survival among oral cancer patients: findings from a retrospective study at a tertiary care cancer centre in rural Kerala, India

Table 1 Clinical profile of oral cancer patients who underwent surgery during June 2009–June 2013 at Malabar Cancer Centre, Thalassery, Kerala, India

Variable	Category	N	%
Age group (in years)	< 25	01	0.5
	25–44	24	10.9
	45–64	111	50.5
	65 and above	84	38.2
Sex	Male	136	61.8
Sex	Female	84	38.2
Co-morbidity	Absent	143	65.0
Co-morbidity	Present	77	35.0
Tobacco use	Absent	32	14.5
Tobacco use	Present	188	85.5
Subsite of primary cancer	Tongue	113	51.4
	Buccal mucosa	48	21.8
	Lower alveolus	34	15.5
	Floor of mouth	09	04.1
	Retromolar trigone	08	03.6
	Upper alveolus	08	03.6
Ipsilateral neck dissection	Selective neck dissection	93	45.1
Ipsilateral neck dissection	Comprehensive neck dissection	113	54.9
Contralateral neck dissection	Selective neck dissection	21	87.5
Contralateral neck dissection	Comprehensive neck dissection	03	12.5
T stage of patients	T1	60	27.3
	T2	73	33.2
	T3	12	05.5
	T4	75	34.1
N stage of patients	N0	141	64.1
	N1	30	13.6
	N2a	01	0.5
	N2b	28	12.7
	N2c	07	03.2
	No neck dissection	13	05.9
Extracapsular invasion of node (of 62 positive nodes)	Absent	45	72.6
Extracapsular invasion of node (of 62 positive nodes)	Present	17	27.4
Histological differentiation	Well differentiated	127	57.7
	Moderately differentiated	92	41.8
	Poorly differentiated	01	0.5
Margin status	Negative	215	97.7
Margin status	Positive	05	2.2
Dysplasia at margin	Absent	209	95.0
Dysplasia at margin	Present	11	05.0
Perineural infiltration	Absent	194	88.2
Perineural infiltration	Present	26	11.8
Stage of cancer	Stage 1	48	21.8
	Stage 2	54	24.5
	Stage 3	26	11.8
	Stage 4	92	41.8
Postoperative radiotherapy	Not received	112	50.9
Postoperative radiotherapy	Received	108	49.1
Recurrence status	No	180	81.8
Recurrence status	Yes	40	18.2

ISSN: 1477-7819