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Table 2 Sites of contamination during doffing of personal protective equipment

From: Self-contamination during doffing of personal protective equipment by healthcare workers to prevent Ebola transmission

 

Small sized contaminated patches (< 1 cm 2), median

Extra large sized contaminated patches (≥ 5 cm2), median

Location

PPE1

PPE2

PPE3

p-value

PPE1

PPE2

PPE3

p-value

Hair and head

1.00

2.00

2.50

0.68

0.00

17.00

0.00

N/A

Face

1.00

4.00

2.00

0.602

0.00

0.00

8.00

N/A

Neck (anterior)

2.50

5.00

11.00

0.095

0.00

0.00

24.00

N/A

Neck (posterior)

2.00

1.00

18.50

0.824

0.00

0.00

0.00

N/A

Arms (right)

3.50

1.00

4.00

0.414

0.00

0.00

28.00

N/A

Arms (left)

2.00

2.00

1.00

0.909

0.00

0.00

49.00

N/A

Hands or wrists

1.00

1.00

6.00

0.414

8.00

61.00

0.00

N/A

Working clothes (upper)

8.50

9.00

7.00

0.997

21.00

48.50

42.00

0.690

Working clothes (lower)

2.00

2.50

6.00

0.111

12.00

46.00

17.50

0.276

Clogs

3.00

5.00

13.50

< 0.001*

121.00

55.00

133.00

0.397

Environment (rubbish bin cover)

2.00

7.00

2.50

0.254

20.00

14.00

23.00

0.737

Environment (chair)

3.00

6.50

2.00

0.053

0.00

36.00

0.00

N/A

Faucet

2.00

2.00

1.50

0.659

0.00

16.00

14.00

N/A

Sink

12.50

14.00

10.00

0.072

75.50

66.50

44.00

0.649

Overall

5.00

7.00

7.00

0.05*

39.00

43.00

47.00

< 0.001*

  1. *significant p values
  2. N/A: There are fewer than two groups for the dependent variables, so no inferential statistics are computed using ANOVA
  3. PPE1: Hospital Authority Standard Ebola PPE set
  4. PPE2: DuPont™ Tyvek®, Model 1422A
  5. PPE3: Hospital Authority isolation gown for routine patient care and performing aerosol-generating procedures