Clinicopathological parameters, recurrence, locoregional and distant metastasis in 115 T1-T2 oral squamous cell carcinoma patients

Table 2 Demographic details of 43 patients with recurrent oral squamous cell carcinoma

	Recurr.	Fisher's exact p-values		Recurr.	Fisher's exact p-values
Gender			Differentiation
Male	23 (53.5%)		Well	8 (18.6%)
Female	20 (46.5%)	0.377	Moderate	19 (44.2%)
			Moderate-poorly	7 (16.3%)
Race			Poorly	9 (20.9%)	<0.001
Caucasian	29 (67.4%)
Indian	5 (11.6%)		pTNM
Middle-Eastern	0 (0.0%)		T1N0M0	10 (23.3%)
Oriental	0 (0.0%)		T2N0M0	6 (14.0%)
Other Asians	2 (4.7%)		T1N1M0	4 (9.3%)
African	5 (11.6%)		T2N1M0	4 (9.3%)
Caribbean	2 (4.7%)	0.491	T1N2aM0	5 (11.6%)
			T2N2aM0	7 (16.3%)
Primary site			T1N2bM0	1 (2.3%)
Floor of mouth	12 (27.9%)		T2N2bM0	3 (7.0%)
Tongue (lateral)	15 (34.9%)		T1N2cM0	2 (4.7%)
Tongue (dorsal)	2 (4.7%)		T2N2cM0	1 (2.3%)	<0.001
Tongue (ventral)	0 (0.0%)
Buccal mucosa	2 (4.7%)		IF, cohesive	26 (60.5%)
Hard palate	2 (4.7%)		IF, non-cohesive	17 (39.5%)	0.039
Upper alveolus	2 (4.7%)		Dys. At Margin	30 (69.8%)	<0.001
Lower alveolus	3 (7.0%)		Lymphvascular Invasion	21 (48.8%)	<0.001
Retromolar area	3 (7.0%)		Nerve Invasion	9 (20.9%)	0.006
Tuberosity	1 (2.3%)		B/C Invasion	3 (7.0%)	0.270
Upper lip	0 (0.0%)		SD present	37 (86.0%)	<0.001
Lower lip	1 (2.3%)		Tumour clearance	8 (18.6%)	<0.001
Neck Lump	0 (0.0%)	0.345
			Age at 1st OSCC
cTNM			Mean	59.53	0.703
T1N0M0	14 (32.6%)
T2N0M0	7 (16.3%)		Depth of Invasion (mm)
T1N1M0	1 (2.3%)		Mean	7.6	<0.001
T2N1M0	3 (7.0%)
T1N2aM0	4 (9.3%)
T2N2aM0	7 (16.3%)
T1N2bM0	1 (2.3%)
T2N2bM0	3 (7.0%)
T1N2cM0	3 (7.0%)	<0.001