Research Article
Alkaline Phosphatase Kinetics Predict Metastasis among Prostate Cancer Patients Who Experience Relapse following Radical Prostatectomy
Table 1
Descriptive characteristics of study sample (n=701).
| | | Study Cohort (N=701) |
| | Continuous Variables | Mean ± SD |
| | Age at CaP Diagnosis (years), Mean ± SD | 62.6 ± 6.4 | | Age at RP (years), Mean ± SD | 62.8 ± 6.4 | | Time from RP to Distant Metastasis (years), Mean ± SD | 10.1 ± 4.7 |
| | Categorical Variables | N () |
| | Distant Metastasis, N () | 63 (9.0) | | Neo- and/or Adjuvant Treatments Received, N () | 127 (18.1) | | Salvage Treatments Received, N () | 437 (62.3) | | PSA Doubling Time (Months), N () | | | Missing | 22 (3.1) | | <10 | 129 (18.4) | | ≥ 10 | 550 (78.5) | | D’Amico risk stratum, N () | | | Missing | 165 (23.5) | | Low | 171 (24.4) | | Intermediate | 199 (28.4) | | High | 166 (23.7) | | Race, N () | | | Missing | 8 (1.1) | | African American | 163 (23.3) | | Caucasian | 494 (70.5) | | Other | 36 (5.1) | | PSA at CaP Diagnosis, N () | | | Missing | 126 (18.0) | | <10 | 371 (52.9) | | 10-20 | 139 (19.8) | | >20 | 65 (9.3) | | Pathologic Gleason Sum, N () | | | Missing | 98 (14.0) | | ≤6 | 234 (33.3) | | 3+4 | 201 (28.7) | | 4+3 | 73 (10.4) | | ≥ 8 | 95 (13.6) | | Pathological T stage, N () | | | Missing | 15 (2.1) | | T2 | 334 (47.6) | | T3-T4 | 352 (50.3) | | Positive Surgical Margin Status, N () | 311 (44.4) | | Positive Extracapsular Extension, N () | 265 (37.8) | | Positive Seminal Vesicle Invasion, N () | 96 (13.7) |
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