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. 2021 Jul 30;17(1):15–24. doi: 10.1177/19322968211035128

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© 2021 Diabetes Technology Society

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Figure 4. — Significant linear relationship between wound and/or vascular parameters.

Dashed lines represent the linear regression fit to all participants’ data. Solid orange and green lines represent the linear regression fit to individual data in the intervention (IG) and control (CG) groups, respectively. (A) At baseline (BL), overall patients who had lower skin perfusion pressure (SPP) showed greater wound area. (B) Overall patients who had lower wound saturation of oxygen (SatO2) at BL showed greater gain than participants who had higher SatO2 at BL. Additionally, patients who had lower SatO2 at BL in the IG (ie, orange line: slope = −2.5461) showed higher gain in SatO2 than those who had higher SatO2 at BL in the CG (ie, green line: slope = −1.9730). (C) Subgroup of patients with moderate to severe PAD: Overall and IG patients who had lower SatO2 at BL showed greater gain than those who had higher SatO2 at BL.