Effects of intervention

Bupivacaine

Mean ± SD

Bupivacaine + Morphine

Mean ± SD

P-value

Duration of spinal anaesthesia (in minutes)

294.75 ± 195.532

1004.25 ± 310.425

<0.001

Pain severity in 24 hrs after surgery

4.80 ± 1.105

1.90 ± 0.641

<0.001

Pain severity in 48 hrs after surgery

3.00 ± 0.725

1.70 ± 0.657

<0.001

Pain Severity in 72 hrs after surgery

2.75 ± 1.020

2.00 ± 0.973

0.022