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. 2024 May 30;24:90. doi: 10.1186/s12873-024-01005-x

Table 6.

Regression analysis on blood loss for single-layer clothing

CAT
explanatory variables coefficients standard error p
bloodloss (constant) 87.16
applied pressure -0.06 0.03 0.046
time 2.38 0.70 0.001
thickness 5.58 7.38 0.452
weight 0.14 0.21 0.512
deformation -378.83 183.26 0.042
R2 0.48
R2adjusted 0.44
F (df = 5; 74) 13.47
SAMXT
explanatory variables coefficients standard error p
bloodloss (constant) 66.86
applied pressure -0.21 0.05 < 0.001
time 2.99 0.43 < 0.001
thickness -40.86 12.12 0.001
weight 0.79 0.33 < 0.001
deformation 1148.27 308.34 0.02
R2 0.57
R2adjusted 0.54
F (df = 5; 74) 19.571
SOFTT-W
explanatory variables coefficients standard error p
bloodloss (constant) 126.21
applied pressure -0.22 0.05 < 0.001
time 2.74 0.48 < 0.001
thickness 7.74 11.81 0.51
weight − 0.09 0.33 0.78
deformation − 298.64 294.27 0.31
R2 0.50
R2adjusted 0.47
F (df = 5; 74) 15.01

Regression analysis of the effect of application time, applied pressure, and textile characteristics (total thickness, mean mass per unit area, and mean deformation) on blood loss for single-layer clothing

CAT: Combat Application Tourniquet® Generation 7; SAMXT: SAM® Extremity Tourniquet; SOFTT-W: SOF® Tactical Tourniquet Wide Generation 4