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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