Table 3. Complications in the intervention and control arms of each study.

References	Aspiration	ITD
Harvey et al. [20]	NR	NR
Andrivet et al. [17]	NR	NR
Noppen et al. [21]	0	NR
Ayed et al. [22]	Subcutaneous emphysema (1)	Subcutaneous emphysema (2) Tube blockage (2) Exit site infection (1)
Parlak et al. [18]	NR	NR
Korczynski et al. [19]	0	0
	Catheterization connected to a one-way valve	ITD
Roggla et al. [23]	Skin emphysema (3) Primary malposition (1) Secondary dislocation (3)	Skin emphysema (3)

ITD: intercostal tube drainage; NR: not reported.