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Table 2 Comparison of intra- and postoperative characteristics between the two groups

From: The use of tranexamic acid to reduce blood loss in uncemented total hip arthroplasty for avascular necrosis of femoral head: a prospective blinded randomized controlled study

ParametersStudy group
(n = 36)
Control group
(n = 37)
p value
Operative time (minutes)a125.8 ± 10.2128.8 ± 9.40.195
Intraoperative blood loss (mL)230.9 ± 41.6344 ± 144< 0.0001
Drain (mL)- 12 h115 ± 31.2168 ± 51.3< 0.0001
 24 h74.2 ± 20.4136 ± 8.5< 0.0001
 48 h61 ± 18.698.6 ± 35.6< 0.0001
Total blood loss (clinical method)481 ± 43.9737.6 ± 137.8< 0.0001
Total blood loss- Gross’ formula484.2 ± 260.9847 ± 374.5< 0.0001
Post-op Hb
 Day112.1 ± 1.411.3 ± 1.2=0.0106
 Day 211.5 ± 1.111 ± 1=0.046
Drop in Hb
 Day11.1 ± 0.42 ± 0.7< 0.0001
 Day 21.8 ± 1.12.4 ± 0.5=.004
Post-op Hct
 Day 134.1 ± 3.431.5 ± 3.5=0.0019
 Day 233.4 ± 2.531.1 ± 1.9< 0.0001
Drop in Hct
 Day 12.7 ± 1.85.2 ± 2.1< 0.0001
 Day 23.4 ± 1.95.5 ± 2.60.0002
Blood transfusion (no. of patients)b17.027299
ComplicationsNoneNone1.000
  1. Hb Haemoglobin, Hct Haematocrit, aTime from induction tol wound closure, beach patient was given one unit of whole blood transfusion