Table II.

Connection of KIF4A expression with clinicopathological characteristics of PCa in Taylor dataset and TCGA dataset.

	Taylor dataset (23)			TCGA dataset (25)
Variable	n	Mean ± SD	P	n	Mean ± SD	P-value
KIF4A expression
Benign	29	5.97±0.23		–
PCa	150	6.23±0.35	<0.001	498	0.121±1.569	–
Serum PSA						<0.001
<4 (ng/ml)	24	6.21±0.34		411	0.011±1.000
≥4 (ng/ml)	123	6.21±0.32	0.977	27	1.517±5.048
Age, years						0.306
<66	124	6.21±0.33		352	0.075±1.664
≥66	26	6.31±0.41	0.201	143	0.235±1.300
Pathological stage						<0.001
<T3A	86	6.16±0.24		186	−0.300±0.480
≥T3A	55	6.27±0.42	0.056	302	0.307±1.245
Gleason score						<0.001
<8	117	6.14±0.24		290	−0.255±0.528
≥8	22	6.50±0.47	<0.001	205	0.653±2.252
Overall survival						<0.001
Alive	131	6.18±0.29		485	0.069±1.068
Decease	19	6.57±0.51	<0.001	10	2.653±7.752
PSA failure						<0.001
Negative	104	6.13±0.24		398	−0.032±0.904
Positive	36	6.39±0.43	<0.001	91	0.524±1.508

-, lack of relative information. KIF, kinesin super-family protein; PCa, prostate cancer; PSA, prostate-specific antigen.