Table 1.

SL no	Risk factor	Cases (n=34)	Controls (n=21)	P value
1	Reintubation	31 (91.1%)	9 (42.9%)	0.001
2	Bigger size ET tube for age	10 (29.4%)	0 (0.0%)	0.009
3	Intubated at other hospitals	12 (35.3%)	0 (0.0%)	0.008
4	Uncuffed ET tube	18 (52.9%)	3 (14.3%)	0.010
5	Shock with MODS	15 (44.1%)	10 (47.6%)	1.0
6	Duration of ventilation (>25 days)	N= 7 (21.2%)	N= 0 (0.0%)	0.035