Table 1.
Baseline characteristics of prostate cancer patients (n=209)
| Variable | Total (n=209) | Open (n=41) | Laparoscopic (n=63) | Robot (n=105) | p-value |
|---|---|---|---|---|---|
| Age (yr) | 66.6±6.6 | 67.6±6.1 | 67.5±6.2 | 65.7±6.9 | 0.124 |
| Height (cm) | 166.7±5.6 | 166.5±6.3 | 167.0±5.5 | 166.9±5.4 | 0.881 |
| Weight (kg) | 66.8±8.4 | 66.9±9.1 | 66.5±8.6 | 67.0±8.0 | 0.931 |
| Comorbidity, any | 118±56.5 | 26±63.4 | 35±55.6 | 57±54.3 | 0.598 |
| Education level | |||||
| Less than high school | 112 (53.9) | 27 (65.9) | 37 (58.7) | 48 (46.2) | 0.065 |
| High school and above | 96 (46.1) | 14 (34.1) | 26 (41.3) | 56 (53.8) | |
| Marital status | |||||
| Married | 187 (89.5) | 39 (95.1) | 53 (84.1) | 95 (90.5) | 0.181 |
| Unmarried | 22 (10.5) | 2 (4.9) | 10 (15.9) | 10 (9.5) | |
| Smoking | |||||
| Current | 22 (10.6) | 3 (7.3) | 7 (11.1) | 12 (11.5) | 0.386 |
| Past | 120 (57.7) | 24 (58.5) | 31 (49.2) | 65 (62.5) | |
| None | 66 (31.7) | 14 (34.2) | 25 (39.7) | 27 (26.0) | |
| Drinking | |||||
| Current | 84 (40.2) | 16 (39.0) | 20 (31.8) | 48 (45.7) | 0.349 |
| Past | 69 (33.0) | 14 (34.2) | 21 (33.3) | 34 (32.4) | |
| None | 56 (26.8) | 11 (26.8) | 22 (34.9) | 23 (21.9) | |
| Pathologic T category | |||||
| 2 | 153 (73.2) | 29 (70.7) | 40 (63.5) | 84 (80.0) | 0.060 |
| 3 | 56 (26.8) | 12 (29.3) | 23 (36.5) | 21 (20.0) | |
| Pathologic N category | |||||
| 0 | 100 (47.9) | 27 (65.9) | 29 (46.03) | 44 (41.9) | 0.053 |
| 1 | 3 (1.4) | 0 | 0 | 3 (2.9) | |
| x | 106 (50.7) | 14 (34.1) | 34 (53.97) | 58 (55.2) | |
| Pathologic Gleason score | |||||
| 6 | 41 (19.6) | 6 (14.6) | 15 (23.8) | 20 (19.1) | 0.795 |
| 7 | 130 (62.2) | 26 (63.4) | 37 (58.7) | 67 (63.8) | |
| ≥ 8 | 38 (18.2) | 9 (22.0) | 11 (17.5) | 18 (17.1) | |
| PSA (ng/mL) | 10.4±11.9 | 8.6±7.1 | 10.9±9.5 | 10.7±14.5 | 0.578 |
| Karnofsky performance status | |||||
| 100 | 159 (76.4) | 21 (52.5) | 63 (100) | 75 (71.4) | < 0.001 |
| 90 | 47 (22.6) | 17 (42.5) | 0 | 30 (28.6) | |
| 80 | 2 (1.0) | 2 (5.0) | 0 | 0 |
Values are presented as mean±standard deviation or number (%). Numbers may not sum to total number due to missing responses. p-values were calculated by chi-square test or Fisher exact test. PSA, prostate-specific antigen.