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Table 5 Multivariate Cox proportional hazards regression for progression free (PFS) and overall survival (OS) in a model including post-treatment laboratory analyses after one cycle of docetaxel (q1) with either continuous or categorical CTC-counts

From: Categorical versus continuous circulating tumor cell enumeration as early surrogate marker for therapy response and prognosis during docetaxel therapy in metastatic prostate cancer patients

 

PFS

OS

CTC-assessment

Values in model

Hazard ratio

95 % CI

p=

Hazard ratio

95 % CI

p=

Continuous CTC-values

CTC-value Continuous

1.02

0.99-1.05

0.14

1.02

1.01-1.04

0.04

PSA-value ≥30 % decline

1.8

0.6-5.6

0.3

2.6

0.9-7.78

0.09

Lactate dehydrogenase ≤ ULN vs. >ULN

1.2

0.2-10.2

0.8

0.7

0.1-3.4

0.65

Alkaline phosphatase ≤ ULN vs. >ULN

3.2

0.95-10.99

0.06

3.4

1.1-10.3

0.03

Hemoglobin < LLN vs. ≥LLN

2.7

0.3-28.4

0.4

1.7

0.2-17.0

0.63

Categorical CTC-counts

CTC-count <5 CTCs vs. ≥5 CTCs

3.9

1.1-13.8

0.04

4.9

1.6-15.7

0.007

PSA-value ≥30 % decline

1.8

0.6-5.3

0.3

3.0

1.03-8.8

0.04

Lactate ehydrogenase ≤ ULN vs. >ULN

1.5

0.2-11.8

0.7

0.8

0.2-3.9

0.84

Alkaline phosphatase ≤ ULN vs. >ULN

1.9

0.5-7.4

0.4

2.0

0.6-6.5

0.27

Hemoglobin < LLN vs. ≥LLN

3.3

0.3-34.3

0.3

2.2

0.2-21.0

0.5