Table 1.
Baseline characteristics of study participants.
| ESPB group (n = 32) | Control group (n = 31) | p value | |
|---|---|---|---|
| Age | 62 [50, 74] | 60 [49, 71] | 0.820 |
|
| |||
| Sex | 0.859 | ||
| Male | 11 (17.5%) | 10 (15.9%) | |
| Female | 21 (33.3%) | 21 (33.3%) | |
|
| |||
| BMI | 33.9 [27.9, 40.0] | 33.2 [24.1, 42.3] | 0.271 |
|
| |||
| Preoperative marijuana use | 3 (4.8%) | 2 (3.2%) | 0.548 |
| Medical history | |||
| Diabetes mellitus | 11 (17.5%) | 5 (7.9%) | 0.096 |
| Osteoporosis | 2 (3.2%) | 4 (6.3%) | 0.368 |
| Sciatica | 20 (58.8%) | 26 (65.0%) | 0.680 |
| Herniated disc | 2 (3.2%) | 1 (1.6%) | 0.573 |
| Case time (minutes) | 115 [82, 148] | 118 [88, 148] | 0.441 |
| Length of stay (days) | 2 [1, 3] | 3 [1, 5] | 0.389 |
Categorical variables are reported as frequencies (proportions); continuous variables, as median [interquartile range]. ESPB, erector spinae plane block; BMI, body mass index.