Table 2.

Onset, duration of sensory & motor block & duration of analgesia

Parameter	Group C (n= 35) Mean± S.D	Group D (n=35) Mean± S.D	t- value	P -value
Onset of sensory block ( min)	14.76± 3.24	12.24± 2.8	3.48	0.001
Onset of motor block (min)	20.53± 2.43	15.8± 1.9	9.07	0.0001
Duration of sensory block (min)	200± 33.85	698± 43.9	53.14	0.0001
Duration of motor block (min)	188± 28.67	673± 79.46	33.96	0.0001
Duration of analgesia (min)	210± 35.88	722± 88.45	31.73	0.0001