Table 1.

Basic demographics.

	Before PSM			Optimization degree (%)	After PSM			Optimization degree (%)
Variable	Non-PCa n = 458	PCa n = 229	P value	Relative bias	Non-PCa n = 458	PCa n = 229	P value	Relative bias	Bias (%)
AGE	54.733	66.279	.000	119.3	66.899	66.274	.504	−6.5	94.6
WEIGHT	77.019	72.611	.000	−41.5	72.367	72.686	.758	3.0	92.8
BMI	25.882	24.876	.000	−31.9	24.901	24.906	.987	0.2	99.5
Apo C3	11.801	10.956	.109	−8.8	10.343	10.975	.484	6.6	25.3
Apo A2	27.925	26.724	.001	−23.9	26.674	26.761	.851	1.7	92.8
Apo C2	5.1609	4.0804	.000	−37.8	4.0751	4.0728	.847	−0.1	99.8
Apo E	4.2864	4.7976	.000	30.1	4.9889	4.8034	.365	−10.9	63.7
ALB	43.553	41.414	.000	−54.7	41.168	41.395	.642	5.8	89.4
CKMB	12.48	16.034	.000	36.7	16.548	16.095	.682	−0.3	87.3
fPSA	0.4132	3.9925	.000	14.8	1.1049	1.538	.136	1.8	87.9
tPSA	1.9376	25.824	.000	31.8	8.9587	14.662	.061	5.8	76.1
Ca	2.2898	2.2544	.000	−32.1	2.2439	2.2541	.387	9.2	71.2
CL	105.05	103.22	.000	−58.5	102.93	103.23	.341	9.6	83.7
IP	1.1793	1.1541	.064	−13.2	1.1378	1.155	.340	9.1	31.5
iCa	1.2019	1.1589	.000	−73.8	1.1521	1.1586	.217	11.2	84.8
LDH	150.65	158	.000	22.3	159.28	158.13	.722	−3.5	84.3
CK	103.83	98.169	.443	−6.4	101.64	98.779	.670	−3.2	49.5
Cre	80.962	84.258	.318	6.8	85.771	84.32	.722	−3.0	56.0
TG	1.9869	1.4027	.000	−42.2	1.411	1.4054	.330	−0.4	99.0
HDL-C	1.1229	1.217	.000	31.2	1.2167	1.223	.839	−2.1	93.4
Apo A1	1.1679	1.3294	.000	67.0	1.3451	1.3301	.566	−6.2	90.7
K	4.0508	4.0311	.409	−6.1	4.0239	4.0322	.799	2.6	58.0
Apo B	0.8912	0.96598	.000	31.8	0.99848	0.96743	.218	−13.2	58.5
Na	141.9	141.94	.851	1.2	141.79	141.91	.661	4.7	−300.7
ALP	68.444	71.784	.039	9.1	66.53	71.433	.159	13.3	−46.8
LDL-C	2.8569	2.9132	.322	6.8	2.919	3.0009	.330	−10.0	−45.5