Table 1.

Patient characteristics

	Control group	SpHb group	p value
No. of patients	61	45	–
Gender (M/F) (%)	49/51	44/55	–
Age range (y)	13–60	12–60	0.66
Weight, range (kg)	44–76	42–74	0.03
ASA Status I/II (%)	78/21	64/35	0.11
Procedures n (%)	61	45
Glioma excision	12 (20)	11 (24)
Meningioma excision	11 (18)	10 (22)
Frontal/temporal/occipital mass excision	4 (7)	4 (9)
Other (e.g. frontal lobectomy, depressed compound skull fracture, cerebral vascular anastomosis, pituitary adenoma)	34 (56)	20 (44)

Demographics of 106 neurosurgery patients allocated to Control Group (standard care hemoglobin monitoring) or SpHb Group (standard of care plus SpHb monitoring) for blood management

SD standard deviation