Skip to main content

Table 1 Comparison of hidden blood loss under different factors (X±s)

From: An analysis of perioperative hidden blood loss in femoral intertrochanteric fractures: bone density is an important influencing factor

Variable Number of cases Hidden blood loss t/F P
Gender
 Male 57 529.28±193.17   
 Female 61 506.48±190.79 0.648 0.518
Age (years)
 ≥60 87 531.49±188.37   
 <60 31 413.98±188.98 2.190 0.030
Time of the operation
 <3 h 78 511.37±188.37   
40 529.58±200.87 −0.487 0.627
Fracture type
 Stable 58 437.97±164.04   
 Unstable 60 536.84±163.26 −3.059 0.003
Anaesthesia
 General anaesthesia 47 596.20±177.26   
 Intraspinal anaesthesia 71 465.48±183.64 −3.838 0.000
Hypertension
 Yes 60 530.90±194.70   
 No 58 503.74±188.75 0.769 0.443
Diabetes
 Yes 57 527.35±202.12   
 No 61 508.39±182.16 0.536 0.593
Bone mineral density
 Normal 23 391.43±145.44   
 Osteopenia 46 497.42±181.97   
 Osteoporosis 49 595.63±185.44 10.895 0.000
Use of anticoagulants
 Yes 64 559.17±190.16   
 No 54 468.22±182.68 −2.635 0.010
BMI
 ≥28 46 500.39±178.38   
 <28 72 528.51±199.83 −0.777 0.439