Table 1.
Patient characteristics by preoperative eGFR
| Variable | Overall (n=572) | Preoperative eGFR | P Value | |
|---|---|---|---|---|
| ≥60 ml/min per 1.73 m2 (n=363 [63%]) | <60 ml/min per 1.73 m2 (n=209 [37%]) | |||
| Median age at surgery, yr | 61.5 (25.1, 91.6) | 57.5 (25.1, 91.6) | 68.2 (28.3, 87.9) | <0.001 |
| Median BMI, kg/m2a | 28.7 (15.5, 69.7) | 28.4 (18.9, 69.7) | 29.0 (15.5, 51.0) | 0.36 |
| Sex | 0.06 | |||
| Female | 185 (32.3) | 107 (29.5) | 78 (37.3) | |
| Male | 387 (67.7) | 256 (70.5) | 131 (62.7) | |
| Race | 0.10 | |||
| Other | 66 (11.5) | 48 (13.2) | 18 (8.6) | |
| White | 506 (88.5) | 315 (86.8) | 191 (91.4) | |
| Diabetes | 96 (16.8) | 51 (14) | 45 (21.5) | 0.03 |
| Hypertension | 357 (62.4) | 205 (56.5) | 152 (72.7) | <0.001 |
| Coronary artery disease | 62 (10.8) | 30 (8.3) | 32 (15.3) | 0.01 |
| Smokingb | 0.73 | |||
| Never | 281 (49.1) | 180 (49.6) | 101 (48.3) | |
| Ever | 289 (50.5) | 181 (49.9) | 108 (51.7) | |
| NA | 2 (0.3) | 2 (0.6) | 0 (0) | |
| ASA grade | 0.03 | |||
| 1, 2 | 236 (41.3) | 162 (44.6) | 74 (35.4) | |
| 3, 5 | 336 (58.7) | 201 (55.4) | 135 (64.6) | |
| Median tumor size, cmc | 7.7 (0.4, 32) | 8 (1.3, 32) | 7.2 (0.4, 23) | 0.01 |
| T stage | 0.01d | |||
| Tx, T0 | 10 (1.7) | 7 (1.9) | 3 (1.4) | |
| T1 | 111 (19.4) | 63 (17.4) | 48 (23) | |
| T2 | 71 (12.4) | 57 (15.7) | 14 (6.7) | |
| T3, T4 | 380 (66.4) | 236 (65) | 144 (68.9) | |
| Type of surgery | 0.43 | |||
| Laparoscopic/robotic | 104 (18.2) | 70 (19.3) | 34 (16.3) | |
| Open | 468 (81.8) | 293 (80.7) | 175 (83.7) | |
Median values are expressed with minimum, maximum values in parentheses. All other values are expressed as number (percentage). BMI, body mass index; NA, not available; ASA, American Society of Anesthesiologists.
a
BMI value missing for one patient.
b
Smoking values missing for two patients.
c
Tumor size value missing for one patient.
d
P value from chi-squared test comparing Tx, T0, T1 versus T2 versus T3, T4.