Variability of platelet aggregation in patients with clopidogrel treatment and hip fracture: A retrospective case-control study on 112 patients

Table 3 Anaesthesia and transfusions n (%)

Variable	Control (n = 84)	Responder (n = 20)	Non-responder (n = 8)	P-value
Anaesthesia
Spinal	82 (98)	5 (25)	7 (88)	1
General	2 (2)	15 (75)	1 (12)
Tranexamic acid
No	9 (11)	3 (15)	0 (0)
Yes	75 (89)	17 (85)	8 (100)	0.003
Plasma transfusion transfusion
No	83 (99)	15 (75)	7 (88)
Yes	1 (1)	5 (25)	1 (12)	0.003
Thrombocyte transfusion
No	84 (100)	9 (45)	7 (88)
Yes	0 (0)	11 (55)	1 (12)	0.003

P-value derived from χ² test. Bonferroni correction has been applied to all P-values.