Table 3 Univariate analysis using modified least squares regression.

From: Sites of blood collection and topical antiseptics associated with contaminated cultures: prospective observational study

 

Contaminants (%)

Risk difference

95% CI

P

Topical antiseptics

PVI

16.2

15.4

11.2–19.6

 < 0.001

ACHX

0.8

-

  

Blood sampling sites

CV Other

21.2

19.0

4.9–33.2

0.009

Femoral

18.0

15.9

10.8–21.0

 < 0.001

Venous

2.2

-

  
  1. ACHX, 1.0% alcohol/chlorhexidine gluconate; CI confidence interval; CV Other, blood culture sample from recently inserted central venous, venous and arterial catheters, implanted port; Femoral, femoral artery or vein; PVI, 10% aqueous povidone-iodine; Venous, venipuncture without catheter insertion.
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