Table 4.

Variables predicting percentage of feeding with SpO₂ < 90% (N = 22)

Source	df	Sum squares	Mean square	F value	p
Model	3	3853.34	1284.45	7.89	0.0014
Error	18	2931.89	162.88
Total	21	6785.23

Variable	df	Coefficient	S.E.	T	P
Percentage of feeding SpO2 < 90%	1	20.13	2.72	7.40	0.0001
On Oxygen	1	−13.39	6.11	−2.19	0.042
Baseline SpO2	1	−2.53	1.02	−2.48	0.023
PCA	1	−4.66	1.79	−2.60	0.018

PCA= Postconceptual age.

R² = 0.57.

Formula: Percentage feeding SpO₂ < 90% = 20.13+(−13.39) On oxygen+(−2.53) Baseline SpO₂+(−4.66) PCA.