Skip to main content

Table 1 Efficacy of chlorhexidine-alcohol (CHG-ALC) versus povidone-iodine-alcohol (PVP-I-ALC) against aerobic and anaerobic flora at 2.5 and 30 min contact time; immediate and 3-h values

From: Comparison of the antimicrobial efficacy of povidone-iodine-alcohol versus chlorhexidine-alcohol for surgical skin preparation on the aerobic and anaerobic skin flora of the shoulder region

Preparation

Contact time (min)

Pre-values (log10)

Immediate effect

3-h effect

RFa

n (0 cfu)b

RFa

n (0 cfu)b

Aerobic values

CHG-ALC

2.5

2.26 ± 0.93

1.94 ± 0.91

13

1.74 ± 1.08

10

30

2.17 ± 0.73

2.17 ± 0.73

16

1.93 ± 0.92

13

PVP-I-ALC

2.5

2.55 ± 0.75

2.55 ± 0.75

16

2.25 ± 1.05

13

30

2.20 ± 0.87

2.11 ± 0.93

15

1.94 ± 1.11

13

Anaerobic values

CHG-ALC

2.5

3.99 ± 1.52

1.74 ± 1.24

6

1.46 ± 1.23

4

30

3.55 ± 1.52

1.38 ± 1.16

7

1.59 ± 1.85

7

PVP-I-ALC

2.5

4.24 ± 1.27

3.96 ± 1.46

12

2.14 ± 1.65

4

30

3.50 ± 1.40

3.14 ± 1.20

13

2.71 ± 1.36

10

  1. aMean reduction factor (RF) and standard deviation
  2. bNumber of volunteers with “0” cfu counts