Predictors of haematocrit in lumbar fusion for lumbar disc herniation: a surgical assessment

Table 1 Description of quantitative data

	Minim	Maximum	Mean	Std-deviation
Age (Y)	18	80	52.86	12.38
Height (cm)	1.45	1.86	1.67	0.07
Weight (Kg)	40	126	66.40	11.16
BMI index (Kg/m²)	15.63	38.89	23.78	3.25
BL(surgeon) (mL)	50	2800	574.35	337.81
BL(anaesthetist) (mL)	50	2800	599.17	375.67
EBL(intra) (mL)	75	2800	586.76	346.62
PD (mL)	50	2065	489.33	274.32
Units of ABT (U)	0	11	1.49	1.84
Hb(pre) (g/L)	85	188	137.74	16.79
Hct(pre) (%)	28.7	72.4	41.23	4.57
Hb(post) (g/L)	72	164	109.2	16.14
Hct (post) (%)	21.3	46.7	32.61	4.52
Hct Decline(%)	−4.2	35.6	8.62	4.07
EBV(mL)	2625.20	6799.80	4268.57	665.11
Length of Post-op Hos Stay (Day)	3	86	12.4	5.8

BL (surgeon) volume of intra-operative blood loss estimated by the surgeon, BL (anaesthetist) volume of intra-operative blood loss estimated by the anaesthetist, EBL (intra) estimated intra-operative blood loss, PD post-operative drainage, Units of ABT units of allogenic red blood cell transfusion, Hb (pre) pre-operative haemoglobin, Hct (pre) pre-operative haematocrit, Hb (post) post-operative haemoglobin, Hct (post) post-operative haematocrit, Hct decline decline of haematocrit, EBV(mL) estimated blood volume in millilitres, Length of Post-op Hos Stay The length of the post-operative hospital stay

ISSN: 1471-2474