Mean differences

p values

Peripheral venous access

Lumbar puncture

9.237

0.916

Blood sampling

−3.945

0.851

Injection

26.570

<0.001

Lumbar puncture

Peripheral venous access

−9.237

0.916

Blood sampling

−13.182

0.806

Injection

17.333

0.649

Blood sampling

Peripheral venous access

3.945

0.851

Lumbar puncture

13.182

0.806

Injection

30.515

<0.001

Injection

Peripheral venous access

−26.570

<0.001

Lumbar puncture

−17.333

0.649

Blood sampling

−30.515

<0.001