Outcome | Group A (landmark based) | Group B (USG guided) | P value |
First attempt success | 148 (64.3) | 167 (72.6) | 0.057 |
Needle redirections | 1 (0 - 2) | 1 (0 - 2) | 0.544 |
Time to dural puncture | 25 (17 - 37) | 32 (24.7 - 38.25) | 0.001 |
Successful spinal anaesthesia | 225 (97.8) | 222 (96.5) | 0.399 |