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Table 7 Difference between the width of the ICS and the diameter of different needles for 10-year-old children, mean ± standard deviation and minimum, all measurements in cm

From: Determining optimal needle size for decompression of tension pneumothorax in children – a CT-based study

Diameter Length 4. ICS AAL
Mean (SD) Minimum
20G 0.11 cm 3.2 cm 1.01 ± 0.36 0.27
18G 0.13 cm 4.5 cm 0.99 ± 0.36 0.25
16G 0.15 cm 4.5 cm 0.94 ± 0.36 0.2