Table 3. Regression analysis of factors impacting postoperative major wound infection of all patients.

Factor		Odds ratio	95% Confident Interval		p value
Postoperative albumin (g/dL)	≧3.5	1			.002
	<3.5	9.811	2.288	42.065
Primary cancer site	Not Hypopharynx	1			.030
	Hypopharynx	2.591	1.095	6.129