Treatment Principle Based on the Clinical Staging of Pharyngocutaneous Fistula

Table 3

Incidence of postoperative PCF in patients with laryngeal and hypopharyngeal SCC with or without preoperative chemoradiotherapy.

PCF	Malignant tumor			Laryngeal SCC			Hypopharyngeal SCC
	Yes	No		Yes	No		Yes	No
Yes	9	30	0.038	2	16	1.000	7	14	0.047
No	34	278		25	217		9	61

Chi-square tests (crosstabs).