Table 2.

Predictive model following CART analysis with probability for GT.

Node	Probability	PMAff (weeks)	Gestational age (weeks)	HFV ever	NEC
1	0.9999	≥46.4
2	0.8695	≥38 and <46.4		Yes
3	0.5554	≥38 and <46.4		No
4	0.3447	<38		Yes	Yes
5	0.49989	<38	<24.6	Yes	No
6	0.36353	<38	≥24.6	Yes	No
7	0.074	≥35.4 and <38		No
8	0.18175	<35.4 and <38		No

PMAff post-menstrual age at first oral feeding, HFV high-frequency ventilation, NEC necrotizing enterocolitis stage II or III.