2. Additional data of adverse events.

Adverse events from Elbadawy 2014	Group I (NGT + intubation)		Group II (PEG + intubation)		Group III (PEG + tracheostomy)		P1	P2	P3
	No.	%	No.	%	No.	%
Infection of tracheostomy wound	0	0.0	0	0.0	16	80.00	‐	‐	‐
Bleeding from tracheostomy	0	0.0	0	0.0	0	0.00	‐	‐	‐
Pneumothorax	0	0.0	0	0.0	3	15.00	‐	‐	‐
Tracheo‐oesophageal fistula	0	0.0	0	0.0	5	25.00	‐	‐	‐
Infection of gastrostomy wound	0	0.0	10	50.00	9	45.00	‐	‐	0.635
Leakage around gastrostomy tube	0	0.0	11	55.00	10	50	‐	‐	0.732
Dislodgement of gastrostomy tube	0	0.0	10	50.00	9	45.00	‐	‐	0.751
GIT Fistula	0	0.0	0	0.00	0	0.00	‐	‐	‐
GIT Perforation	0	0.0	0	0.00	0	0.00	‐	‐	‐
Buried Pumper syndrome	0	0.0	0	0.00	0	0.00	‐	‐	‐
Obstruction	0	0.0	1	5.00	1	0.00	‐	‐	0.742
Paransal sinusitis	12	60.0	0	0.0	0	0.0	‐	‐	‐

P1 is the comparison between group I and group II

P2 is the comparison between group I and group III

P3 is comparison between group II and group III