Efficacy of the Combined Administration of Systemic and Intra-Articular Tranexamic Acid in Total Hip Arthroplasty Secondary to Femoral Neck Fracture: A Retrospective Study

Table 3

t-test for the TXA group and the control group.

Independent samples test
		Levene’s test for equality of variances		t-test for equality of means
		F	Sig.	T	Df	Sig. (2-tailed)	Mean difference	Std. error difference	95% confidence interval of the difference
									Lower	Upper
Pre-op Hgb	Equal variances assumed	4.680	0.032	−0.317	193	0.751	−0.0913	0.2879	−0.6591	0.4765
	Equal variances not assumed			−0.350	136.438	0.727	−0.0913	0.2605	−0.6064	0.4238
D1 PO Hgb	Equal variances assumed	0.000	0.988	−2.247	193	0.026	−0.4884	0.2174	−0.9172	−0.0597
	Equal variances not assumed			−2.253	108.127	0.026	−0.4884	0.2167	−0.9180	−0.0588
D5 PO Hgb	Equal variances assumed	0.486	0.487	−0.351	192	0.726	−0.0580	0.1655	−0.3844	0.2684
	Equal variances not assumed			−0.344	100.365	0.732	−0.0580	0.1689	−0.3930	0.2770
Total transfusion	Equal variances assumed	1.450	0.230	2.225	193	0.027	0.480	0.216	0.055	0.906
	Equal variances not assumed			2.390	127.083	0.018	0.480	0.201	0.083	0.878
Age	Equal variances assumed	1.707	0.193	−1.367	193	0.173	−3.335	2.440	−8.149	1.478
	Equal variances not assumed			−1.495	132.919	0.137	−3.335	2.232	−7.749	1.079

Pre-op = preoperative, Hgb = hemoglobin, D = day, PO = postoperative.