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Table 2 Logistic regression analysis of ultrasound findings associated with scar status

From: Ultrasonographic findings of re-epithelialized skin after partial-thickness burns

Ultrasound Finding Mean(SD) Univariate Multivariate
NS (n = 74) HS (n = 17) B OR P value B OR P value
Skin thickness of re-epithelialized skin (mm) 1.510 (0.318) 1.658 (0.345) 0.001 1.001 0.097    
EE thickness of re-epithelialized skin (mm) 0.126 (0.014) 0.127 (0.018) 0.008 1.009 0.646    
Remained dermal echogenicity of re-epithelialized skin 30.653 (10.863) 20.984 (10.598) − 0.092 0.912 0.003** − 0.047 0.039 0.445
LEB thickness of re-epithelialized skin (mm) 0.241 (0.098) 0.453 (0.102) 0.019 1.019 < 0.001*** 0.005 1.005 0.533
Skin thickness ratioa 1.357 (0.262) 1.521 (0.438) 1.560 4.756 0.111    
EE thickness ratioa 1.023 (0.160) 1.006 (0.155) − 0.686 0.503 0.752    
Dermal echogenicity ratioa 0.783 (0.262) 0.612 (0.294) − 2.920 0.054 0.066    
Proportion of LEB thickness (%)b 17.398 (5.410) 29.971 (4.305) 0.575 1.776 < 0.001*** 0.574 1.775 0.019*
Healing time (days) 14.068 (4.473) 21.294 (3.405) 0.349 1.417 < 0.001*** 0.051 1.052 0.838
Interval from injury to ultrasound (days) 23.541 (4.963) 31.059 (4.67) 0.275 1.317 < 0.001*** − 0.019 0.037 0.918
  1. SD standard deviation, B regression coefficiency, OR odd ratio, NS normotrophic scar, HS hypertrophic scar, EE entrance echo, LEB low-echogenic band
  2. aRatio of re-epithelialized skin to contralateral normal skin
  3. bPercentage of LEB thickness in re-epithelialized skin thickness
  4. *P < 0.05, **P < 0.01, ***P < 0.001