Table 1. Demographic variables.
pQLB: Posterior quadratus lumborum block; CRNA: Certified registered nurse anesthetist; MSH: Mount Sinai Hospital; MSW: Mount Sinai West; ASA: American Society of Anesthesiology; TIVA: Total intravenous anesthesia
| Variables | pQLB (n=211) | NO pQLB (n=343) | P value | ||
| Age (in Years) | 60 ± 13 | 59 ± 12 | 0.5 | ||
| Sex (Male/Female) | 75/136 | 136/207 | 0.3 | ||
| Diabetes | 34 (16%) | 64 (18%) | 0.4 | ||
| Hypertension | 115 (54.5%) | 214 (62.4%) | 0.05 | ||
| Smoking Status (Yes/No) | 19 (11.1%) | 51 (14.8%) | 0.04 | ||
| Anesthesia Team | Resident | 200 (94.7%) | 259 (75.5%) | 0.01 | |
| CRNA | 11 (0.03%) | 84 (24.5%) | |||
| Hospital Site | MSH | 21 (10%) | 65 (19%) | 0.005 | |
| MSW | 190 (90%) | 278 (81%) | |||
| Anesthesia Type | General anesthesia with TIVA | 173 | 17 | 0.001 | |
| General anesthesia with volatile | 38 | 326 | |||
| ASA Status | 1 | 8 | 11 | 0.07 | |
| 2 | 126 | 168 | |||
| 3 | 67 | 139 | |||
| 4 | 10 | 25 | |||
| Surgery Duration (min) | 136 (118, 161) | 151 (120, 182) | 0.001 | ||
| Type of Surgery | Laparoscopic | 127 (60%) | 233 (68%) | 0.001 | |
| Robotic | 84 (40%) | 110 (32%) | |||
| Partial | 121 (57.3%) | 229 (66.7%) | |||
| Radical | 90 (42.6%) | 114 (33.2%) | |||
| Block Timing | Before Incision | 191 (90%) | - | 0.001 | |
| After Surgery | 20 (10%) | - | |||
| Local Anesthesia | Bupivacaine | 202 (95.8%) | - | 0.001 | |
| Ropivacaine | 9 (4.2%) | - | |||