Page 63 - Journal of Special Operations Medicine - Spring 2016

Table 2 Mean Scores per Question and Comparison
Question CRoC JETT Z Test Score p Value
How satisfied are you in general terms with the junctional 2.56 2.733 1.510 <.131
hemorrhage control device?
Would you choose to carry it in your med bag? 2 2.427 3.272 <.00108
Stops bleeding effectively from junctional areas such as the 2.827 2.893 0.570 <.569
groin, pelvis, buttock, shoulder, or neck
Compresses bleeding from sites where regular tourniquets 2.92 3.107 2.081 <.038
cannot be applied
Can be used effectively for prehospital care on the battlefield 2.307 2.787 4.087 <.001
and in tactical situations
Easy to use; requires minimal training or familiarization 2.52 2.76 2.073 <.03846
Quickly applied 1.907 2.533 6.294 <.001
Does not slip on tightening or in use 2.027 2.467 3.522 <.001
Provides easy release of compression 2.693 2.827 1.423 <.156
Easy to reapply 2.467 2.773 3.114 <.002
Safe to use 2.827 2.947 1.521 <.129
Small with low profile 2.453 2.653 1.869 <.063
Lightweight 2.573 2.893 3.2 <.0014
CRoC, Combat Ready Clamp; JETT, Junctional Emergency Treatment Tool.
Color key:
Highest scores for the CRoC Lowest scores for the CRoC Biggest difference between devices’ scores
Highest scores for the JETT Lowest scores for the JETT Statistically significant

Figure 2 Mean scores per question for each device.

How satisfied are you in general terms with the junctional hemorrhage control device?
Would you choose to carry it in your med bag?
Stops bleeding effectively from junctional areas such as the groin, pelvis, buttock, shoulder, or neck
Compresses bleeding from sites where regular tourniquets cannot be applied
Can be used effectively for prehospital care on the battlefield and in tactical situations
Easy to use; requires minimal training or familiarization
Quickly applied
Does not slip on tightening or in use
Provides easy release of compression
Easy to reapply
Safe to use
Small with low profile
Lightweight
Scores higher than 2.5 represent positive evaluations. Translucent bars, difference between mean scores is
not statistically significant. CRoC, Combat Ready Clamp; JETT, Junctional Emergency Treatment Tool. Mean Scores

SOF Testing of CRoC and JETT Tourniquets 47