Table 3 Comparison of the total mean detected CFUs/Plate above the cover compared to beneath the cover in Groups 2 and 3 during different time-points of experiment

60 min

Static

The standard two-drape method

1.98 ± 2.30

0.22 ± 0.94

0.005

The novel single-drape cover

1.89 ± 1.84

0.11 ± 0.32

0.003

P-value

0.93

0.60

Dynamic

The standard two-drape method

2.28 ± 2.89

0.33 ± 0.67

0.031

The novel single-drape cover

1.78 ± 2.045

0.22 ± 0.43

0.027

P-value

0.66

0.86

120 min

Static

The standard two-drape method

2.28 ± 2.052

0.44 ± 0.70

0.002

The novel single-drape cover

1.89 ± 1.937

0.11 ± 0.32

0.003

P-value

0.64

0.56

Dynamic

The standard two-drape method

2.83 ± 2.53

0.28 ± 0.67

0.005

The novel single-drape cover

4.00 ± 4.14

0.22 ± 0.55

0.002

P-value

0.79

0.26

180 min

Static

The standard two-drape method

3.50 ± 3.034

0.33 ± 0.59

0.004

The novel single-drape cover

2.50 ± 2.61

0.17 ± 0 .38

0.002

P-value

0.64

0.56

Dynamic

The standard two-drape method

3.4 ± 3.45

0.61 ± 1.38

0.007

The novel single-drape cover

4.8 ± 4.74

0.28 ± 0.67

0.002

P-value

0.73

0.60

240 min

Static

The standard two-drape method

4.22 ± 4.48

0.61 ± 0.78

.01 0

The novel single-drape cover

3.56 ± 3.365

0.17 ± 0.38

0.001

P-value

0.50

0.053

Dynamic

The standard two-drape method

7.22 ± 6.57

0.61 ± 0.78

013 0

The novel single-drape cover

7.44 ± 6.0

0.39 ± 0.60

0.004

P-value

0.96

0.22

24 hours

Static

The standard two-drape method

10.8 ± 9.55

0.72 ± 1.2

0.004

The novel single-drape cover

8.33 ± 7.10

0.22 ± 0.43

< 0.0001

P-value

0.67

0.29