	Intraop P	Intraop SBP	Intraop DBP	Postop P	Postop SBP	Postop DBP
Operating time (minutes)	R = 0.1306	R = −0.022	R = −0.0864	R = 0.0073	R = −0.0053	R = −0.091
Operating time (minutes)	P = 0.277665	P = 0.85549	P = 0.475778	P = 0.951821	P = 0.980191	P = 0.450407
0.9% NS (litres)	R = 0.1631	R = −0.0315	R = −0.167	R = 0.1973	R = 0.1361	R = 0.1123
0.9% NS (litres)	P = 0.17413	P = 0.79746	P = 0.182578	P = 0.099101	P = 0.257753	P = 0.351122
BMI	R = −0.0837	R = 0.1107	R = 0.1542	R = 0.0783	R = −0.022	R = −0.04
BMI	P = 0.491361	P = 0.358071	P = 0.199161	P = 0.516303	P = 0.855499	P = 0.740496
ASA	R = −0.1475	R = −0.0035	R = 0	R = 0.0117	R = 0.0298	R = −0.0102
ASA	P = 0.22121	P = 0.980191		P = 0.922854	P = 0.805143	P = 0.934036
IV fluids (ml)	R = 0.11	R = −0.0518	R = −0.1058	R = 0.105	R = 0.2065	R = 0.0996
IV fluids (ml)	P = 0.351122	P = 0.672747	P = 0.383506	P = 0.383506	P = 0.084026	P = 0.408574