TABLE 3.

Univariate and Multivariate Analyses of Prognostic Factors for Local Recurrence in T2N0 Oral Cavity Squamous Cell Carcinoma (n = 796)

		Univariate Analysis		Multivariate Analysis
Variable	No.	HR (95% CI)	P	HR (95% CI)	P
Sex			.5157		.41
Male	611	1		1
Female	183	1.13 (0.77–1.61)		0.81 (0.49–1.3)
Missing	2
Age			.243		.66
<70 y	673	1		1
≥70 y	123	1.29 (0.83–1.94)		1.13 (0.64–1.86)
Missing	0
Treatment			.63		.23
Surgery	557	1		1
S+ADJ	238	0.92 (0.63–1.3)		0.76 (0.48–1.18)
Missing	1
DOI			.23		.17
<4 mm	123	1		1
≥4 mm	547	1.32 (0.85–2.17)		1.37 (0.87–2.26)
Missing	126
Margins			<.0001		<.0001
Clear	620	1		1
Close	137	2.88 (2.03–4.04)		2.91 (1.88–4.38)
Positive	19	1.33 (0.33–3.54)		1.53 (0.25–5.05)
Missing	20

Abbreviations: CI, confidence interval; DOI, depth of invasion; HR, hazard ratio; S+ADJ, surgery and adjuvant treatment.