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Table 2 Factors affecting the overall success rate of venous catheterisation extracted with multiple logistic regression analysis (n = 96)

From: Optimal site for ultrasound-guided venous catheterisation in paediatric patients: an observational study to investigate predictors for catheterisation success and a randomised controlled study to determine the most successful site

Independent variables

β

Odds ratio

95% confidence interval

P value

With ultrasound guidance

1.98

7.3

2.0-26.0

0.002

Venous diameter, per 0.1 mm

0.38

1.5

1.1-2.0

0.007

ASA-PS, per status 1

−0.86

0.4

0.2-0.9

0.03

Age, months

 

0.9

 

0.08

Sex, male/female

2.6

0.2

Systolic blood pressure, mm Hg

1.0

0.06

Depth of the vein, mm

0.7

0.42

  1. Area under the curve = 0.88. β = partial regression coefficient. ASA-PS, American Society of Anaesthesiologists physical status.