Table 2. Comparison of mean LA volume (mL) and duration of anesthesia and surgery (min) between control and test sites using student paired t-test.

	Sites	N	Mean	SD	Mean diff	P-value
LA Volume (mL)	Control	15	3.17	0.31	0.00	..
	Test	15	3.17	0.31
Quality of anesthesia	Control	15	198.67	30.15	193.33	< 0.001*
	Test	15	392.00	40.96
Duration of surgery	Control	15	70.33	18.47	0.67	0.33
	Test	15	71.00	19.38

^*P < 0.05 is statistically significant. LA, local anesthetics; SD, standard deviation.