Table 2.

Pre- and postoperative laboratory values, transfusion rates, and estimated blood loss in cerebral palsy patients undergoing proximal femoral varus derotational osteotomies.

Characteristic	No-TXA (n = 310)	TXA (n = 80)	P value
Preoperative Hb, g/dL	13.5 (1.2)	13.3 (1.3)	.27
Preoperative Hct	39.8 (3.1)	39.6 (3.4)	.61
Initial postoperative Hb, g/dL	9.5 (1.7)	9.5 (1.7)	.87
Initial postoperative Hct	28.0 (4.7)	28.3 (5.0)	.69
Change pre- to postoperative Hb, g/dL	−3.9 (2.0)	−3.8 (1.8)	.85
Change pre- to postoperative Hct	−11.8 (4.7)	−11.4 (5.1)	.58
Overall transfusion rate	78/310 (25.2%)	11/80 (13.8%)	.04∗
Intra-operative Transfusion rate	32/310 (10.3%)	6/80 (7.5%)	.53
Post-operative Transfusion rate	57/310 (18.4%)	6/80 (7.5%)	.02∗
Estimated blood loss, cc∗∗	177.4 (169.1)	142.9 (113.1)	.09
Percentage blood loss based on TBW, %∗∗	10.1 (8.7)	9.2 (7.0)	.40
Estimated blood Loss, cc∗∗∗	792.8 (515.5)	630.1 (500.7)	.07
Length of stay, days	2.9 (3.2)	2.9 (3.0)	.84

Values are presented as mean (standard deviation) unless otherwise noted; P values were determined using unpaired t tests and Fishers exact test for continuous and categorical variables, respectively.

^∗indicates significance at the P < .05 level.

^∗∗Estimated blood loss based on anesthesia records.

^∗∗∗Estimated blood loss using Hemoglobin balance method.

Hb = hemoglobin, Hct = hematocrit, TBW = total body weight.