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Table 2 Results of the analysed data

From: Zimmer Natural Nail and ELOS nails in pertrochanteric fractures

  ZNN ELOS Student’s t test
Duration of surgery 41.76 (15–130) min; 17.2 SD 45.82 (20–110) min; 17.76 SD P = 0.151
Transfusions performed 1.98 (0–6) U of blood; 1.43 SD 1.63 (0–5) U of blood; 1.46 SD P = 0.350
TAD 17.50 (4.42–41.85) mm; 7.25 SD 19.65 (5.08–31.4) mm; 7.28 SD P = 0.064
CalTAD 20.76 (10.82–43.63) mm; 5.58 SD 22.86 (12.66–33.77) mm; 5.75 SD P = 0.027
Hospitalization time 10.19 (4–22) days; 3.44 SD 10.45 (5–24) days; 3.43 SD P = 0.630
Haemoglobin variation 3.5 (0.3–6.6) g; 1.25 SD 3.25 (1.2–6.8) g; 1.28 SD P = 0.209
Nail positioning Cen-Ant: 4 Cen-Ant: 3  
Cen-Cen: 43 Cen-Cen: 15
Cen-pos: 8 Cen-pos: 5
Inf-Cen: 10 Inf-Cen: 7
Inf-Pos: 48 Inf-Pos: 25
sup-ant: 4 sup-ant: 1
pos-sup: 0 pos-sup: 0
ant- inf: 0 ant- inf: 1
sup-cent: 2 sup-cent: 2
Costs 700 euro Short: 450 euro  
Long: 520 euro