EBP numeric value outcome of each needle type with respect to the BMI subgroup
| Variable | EBP | No EBP | P Value |
|---|---|---|---|
| BMI ≤25 | |||
| Whitacre–Quincke | .12 | ||
| 22W (%) | 17 (2.11) | 787 (97.89) | |
| 22Q (%) | 7 (4.14) | 162 (95.86) | |
| 20Q–22Q | .70 | ||
| 20 ga (%) | 23 (4.86) | 450 (95.14) | |
| 22 ga (%) | 7 (4.14) | 162 (95.86) | |
| BMI >25 to ≤30 | |||
| Whitacre–Quincke | .03 | ||
| 22W (%) | 8 (1.2) | 661 (98.8) | |
| 22Q (%) | 6 (3.8) | 152 (96.2) | |
| 20Q–22Q | .69 | ||
| 20 ga (%) | 19 (4.55) | 399 (95.45) | |
| 22 ga (%) | 6 (3.8) | 152 (96.2) | |
| BMI >30 | |||
| Whitacre–Quincke | <.001 | ||
| 22W (%) | 5 (0.71) | 699 (99.29) | |
| 22Q (%) | 15 (3.48) | 416 (96.52) | |
| 20Q–22Q | .44 | ||
| 20 ga (%) | 27 (4.43) | 582 (95.57) | |
| 22 ga (%) | 15 (3.48) | 416 (96.52) |