Table 2.

The regression analysis components of the cell-free DNA in the patients with PCA.

Parameter		Publication, year	Age, mean, year	Treatments	Number of patients, n	Early stage,%	Detected Method (QPCR vs Others)	Sample source (Serum vs Others)
PFS-analysis	B(95%CI)	(−0.9794655–1.503457)	(−0.0871355–0.5698736)	(−1.348412–1.11412)	(−0.0176474–0.0092637)	(−5.154026–8.596189)	(−0.8999634–1.686611)	(−2.408176–4.270278)
	P-value	0.624	0.122	0.824	0.475	0.563	0.485	0.521
OS-analysis	B(95%CI)	(−0.0174465–0.0944092)	(−0.5664279–0.5376342)	(−0.2184801–0.5279275)	(−0.0039293–0.0032868)	/	(−0.3082015–0.3026709)	(−2.249472–0.6187506)
	P-value	0.143	0.951	0.350	0.835	/	0.983	0.214

Early stage,%, mainly according to the AJCC and other systems; PFS, progression-free survival; OS, overall survival.