Table 2.

Comparative analysis of intraoperative variables.

Parameter				Group A		Group B			Group C		p value (95%CI)
Intraoperative visibility score (mean)				3.05	3.70			3.55			0.003 (3.27–3.60)
A	B		p = 0.003 95%CI (-1.1 - -0.2)
A	C		p = 0.027 95%CI (-0.95 - -0.05)
B	C		p = 0.705
Surgeon VAS (mean)				2.90		1.05			1.35		0.002 (1.3–2.24)
A		B	0.010 95%CI (0.39–3.31)
A		C	0.042 95%CI (0.04–3.06)
B		C	0.805 95%CI (-1.22–0.62)
Conversion to tourniquet (no. Of patients)				2		–			0		0.126
Amount of fluid required (ml)				2530		1895			2105		0.001
A		B	p < 0.001
A		C	p < 0.001
B		C	p = 0.024
Duration of surgery (minutes)				26.25		19.25			20.75		0.001
A		B	p < 0.001
A		C	p < 0.001
B		C	p = 0.05
Mean MAP (mm Hg) (Overall range 42–172)			0 min	71.60			79.95			76.43		0.242
			10 min	76.85			80.00			81.35		0.475
			20 min	79.16			82.47			79.41		0.616
			30 min	77.00			88.67			78.40		0.342
Mean HR (bpm) (Overall range 42–172)			0 min	75.10			74.25			74.98		0.909
			10 min	78.25			73.65			74.65		0.399
			20 min	74.74			74.94			73.94		0.967
			30 min	72.75			82.17			77.60		0.302