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The Ultrasound Journal

Table 1 Mean, median, minimum, and maximum aspiration times and number of attempts overall

From: Ultrasound-guided oblique approach for peripheral venous access in a phantom model

Variable

Mean

Standard deviation

Median

Minimum

Maximum

Time

     

Time T (s)

9.47

10.15

5.15

2.30

36.90

Time L (s)

9.74

14.44

5.25

1.00

63.10

Time O (s)

12.50

11.08

8.15

2.10

45.20

Attempt

     

Attempt T

1.75

1.51

1.00

1.00

6.00

Attempt L

1.71

2.16

1.00

1.00

10.00

Attempt O

2.33

1.83

2.00

1.00

9.00

  1. The p value for times when comparing T, L, and O is 0.572. When comparing attempts, the p value for Cochran’s Q was 0.046. The p values for the Wilcoxon signed ranked tests or the adjustment Bonferroni correction were not significant for the approaches when compared two at a time.
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