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Table 4 Univariate analysis of factors in relation to scar outcome

From: Identification of factors predicting scar outcome after burn injury in children: a prospective case-control study

Explanatory variable

 

Scar height =0 mm (n = 60)

Scar height >0 to 1 mm (n = 62)

Scar height >1 mm OR scar reconstructive surgery/steroids/laser (n = 64)

Total (n = 186)

p value

Test

  

n

%a

n

%a

n

%a

n

%a

  

Sex

Female

28

46.7

24

38.7

26

40.6

78

41.9

0.650

Pearson’s chi-square (df = 2)

Male

32

53.3

38

61.3

38

59.4

108

58.1

  

Age (years)

Median (IQR)

8.20 (3.48–12.58)

4.25 (1.70–9.15)

3.80 (1.55–9.22)

5.30 (1.90–10.50)

0.015

Kruskal-Wallis

Time from injury to scar assessment (months)b

Median (IQR)

6.60 (2.70–21.68)

13.10 (8.52–52.38)

34.40 (10.32–68.00)

13.25 (6.08–47.35)

<0.0001

Kruskal-Wallis

Asthmac

Yes

8

14.0

3

4.8

11

17.2

22

12.0

0.088

Pearson’s chi-square (df = 2)

Eczemad

Yes

9

15.8

9

14.5

5

7.8

23

12.6

0.355

Pearson’s chi-square (df = 2)

Diabetes (type 1 or type 2)

Yes

0

0.0

0

0.0

0

0.0

0

0.0

N/A

Pearson’s chi-square (df = 2)

Fitzpatrick skin typee

1–3

17

29.8

18

29.5

22

34.9

57

31.5

0.768

Pearson’s chi-square (df = 2)

4–6

40

70.2

43

70.5

41

65.1

124

68.5

  

% TBSAf

Median (IQR)

3.00 (1.00–5.00)

3.00 (1.00–7.25)

4.00 (1.50–9.75)

3.00 (1.00-7.00)

0.018

Kruskal-Wallis

Level of surgical intervention (proxy for wound depth)

Conservative

40

66.7

14

22.6

13

20.3

67

36.0

<0.0001

Pearson’s chi-square (df = 2)

Split-thickness skin graft

20

33.3

48

77.4

51

79.7

119

64.0

  

Multiple surgical procedures (>1)

Yes

0

0.0

5

8.1

20

31.3

25

13.4

<0.0001

Pearson’s chi-square (df = 2)

Healed within 14 daysg

Yes

33

63.5

19

30.6

3

5.8

55

34.4

<0.0001

Pearson chi-square (df = 2)

Wound complicationsh

Yes

10

17.2

28

45.9

29

50.0

67

37.9

<0.0001

Pearson’s chi-square (df = 2)

Length of stay (days)i

Median (IQR)

3.00 (0.00–8.00)

6.50 (1.75–15.25)

14.00 (5.00–25.50)

7.00 (1.00–16.00)

<0.0001

Kruskal-Wallis

Worst scar locationj

Head/neck

3

5.1

2

3.2

3

5.3

8

4.5

0.850

Pearson’s chi-square (df = 14)

Chest/ abdomen

14

23.7

12

19.4

7

12.3

33

18.5

  

Back/buttocks

4

6.8

3

4.8

2

3.5

9

5.1

  

Arm

7

11.9

13

21.0

9

15.8

29

16.3

  

Hand

11

18.6

8

12.9

12

21.1

31

17.4

  

Leg

15

25.4

17

27.4

16

28.1

48

27.0

  

Foot

5

8.5

6

9.7

8

14.0

19

10.7

  

Genitalia

0

0.0

1

1.6

0

0.0

1

0.6

  
  1. aColumn percentage
  2. bMissing data, n = 10
  3. cMissing data, n = 3
  4. dMissing data, n = 3
  5. eMissing data, n = 5
  6. fMissing data, n = 1
  7. gMissing data, n = 26
  8. hMissing data, n = 9
  9. iMissing data, n = 3
  10. jMissing data, n = 1
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Burns & Trauma

ISSN: 2321-3876

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