Table 1.

Correlation between RKIP expression and clinicopathological characteristics in NSCLC (n=93, χ² test)

Variables	N	RKIP		P-value
		Low	High
Gender				0.058
Male	75	23	52
Female	18	10	8
Age				0.520
≤60	46	18	28
>60	47	15	32
Pathological types				0.164
SCC	63	19	44
ADC	30	14	16
Primary tumor (T) stage				<0.001
T1–2	58	12	46
T3–4	35	21	14
Lymph node (N) metastasis				0.334
N0–1	25	11	14
N2–3	68	22	46
Clinical tumor/node/metastasis stage				0.800
II	21	8	13
III	72	25	47
Radiation response				<0.001
Radioresistant	44	24	20
Radiosensitive	49	9	40

Notes: P<0.05 by χ² test, RKIP expression vs NSCLC primary tumor (T) stage; RKIP expression vs NSCLC radiation response.

Abbreviations: ADC, adenocarcinoma; NSCLC, non-small-cell lung cancer; RKIP, Raf kinase inhibitor protein; SCC, squamous cell carcinoma.