Abnormal expression and potential clinical value of oncogenic Krüppel-like factor-5 in lung squamous cell carcinoma

Table 2 Clinicopathological characteristics of positive Krüppel-like factor 5 expression in lung squamous-cell carcinoma

Groups	No. of patient (%)	KLF5 positive (n)	%	χ2	P value
Lung cancer	60	51	85.0	-	-
Gender
Male	51	43	84.3	0.023	0.879
Female	9	8	88.9
Age (years)
≤ 60	28	23	82.1	0.047	0.828
> 60	32	28	87.5
Tumor diameter (cm)
≤ 2	15	12	80.0	0.044	0.835
> 2	45	39	86.7
Differentiation
Well	18	11	61.1	8.989	0.003a
Moderate/poor	42	40	95.2
Lymph node metastasis
Without	16	10	62.5	6.424	0.011a
With	44	41	93.2
TNM staging
I-II	49	41	83.7	0.020	0.889
III-IV	11	10	90.9
Five-year survival
Yes	19	17	89.5	0.074	0.786
No	41	34	82.9

^aP value < 0.05.

KLF5: Krüppel-like factor 5; TNM: Tumor node metastasis staging.