SBP Nalbuphine Group Morphine Group T-test Pre Mean ± SD 115.150 ± 4.626 115.000 ± 3.129 0.120 0.905 Post Mean ± SD 117.900 ± 3.370 125.550 ± 4.947 -5.716 <0.001 Difference Mean ± SD -2.750 ± 5.210 -10.550 ± 5.206   Paired t-test t -2.361 -9.063 P-value 0.029 <0.001

Table 5: Systolic blood pressure in pre and post-operative periods in both groups