Decreased P27 protein expression is correlated with the progression and poor prognosis of nasopharyngeal carcinoma

Table 1 Correlation between the clinicopathologic characteristics and expression of p27 protein in NPC

Characteristics	n	p27 (n)		P
		High expression	Low expression
Gender
Male	93	49	44
Female	37	13	24	0.082
Age(y)
≥50	62	30	32
<50	68	32	36	1.000
Smoking
Yes	32	21	11
No	98	41	57	0.025
Recurrence
Yes	4	2	2
No	126	60	66	1.000
T classification
T₁-T₂	90	51	39
T₃-T₄	40	11	29	0.002
N classification
N₀-N₁	73	38	35
N₂-N₃	57	24	33	0.291
Distant metastasis
Yes	10	5	5
No	129	57	63	1.000
TNM Clinical stage
I~II	49	30	19
III~IV	81	32	49	0.019

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