Table 3.  . Immunostaining scores and correlation of p16 and p53 in ADCs and SQCCs.

p16		p53		r	p-value
		Positive	Negative
ADC	Positive	24	14	0.119	0.308
	Negative	19	18
SQCC	Positive	18	13	0.085	0.429
	Negative	38	19

ADC: Adenocarcinoma; IHC: Immunohistochemistry; SQCC: Squamous cell carcinoma.