Table 1.

Demographic data

	Group Marsh (n = 32)	Group Schnider (n = 32)	P-value
Age	32.3 (11.2)	31.3 (10.9)	0.727
Height (m)	1.60 (0.05)	1.57 (0.07)	0.059
Weight (kg)	64.3 (11.2)	56.4 (9.8)	0.004*
ASA:
I	28 (87.5%)	28 (87.5%)	1.000
II	4 (12.5%)	4 (12.5%)
Sex:
Male	11 (34.4%)	22 (68.8%)	0.006*
Female	21 (65.6%)	10 (31.3%)
Type of Surgery:
Gen. Surgery	8 (25.0%)	13 (40.6%)	0.157
Gynaecology	1 (3.1%)	3 (9.4%)
Orthopaedics	21(65.6%)	11 (34.4%)
ENT	1 (3.1%)	3 (9.4%)
Plastic Surgery	1 (3.1%)	0
Ophthalmology	0	1 (3.1%)
Dental	0	1 (3.1%)

All numerical data were expressed in mean (SD); all categorical data were expressed in n (%)