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. Author manuscript; available in PMC: 2019 May 20.

Published in final edited form as: J Perinatol. 2018 Nov 20;39(3):393–400. doi: 10.1038/s41372-018-0274-9

Table 6.

Logistic regression model for late transfusion and severe ROP.

							95% C.I.for EXP(B)
	B	S.E.	Wald	df	Sig.	Exp(B)	Lower	Upper
Late transfusion	−.619	.403	2.356	1	.125	.539	.244	1.187
EGA	−.256	.087	8.639	1	.003	.774	.653	.918
Birth weight	−.001	.001	2.929	1	.087	.999	.998	1.000
BPD^a	1.270	.281	20.354	1	.000	3.561	2.051	6.182
Postnatal steroids	1.133	.243	21.780	1	.000	3.106	1.930	5.000
PDA	.470	.251	3.520	1	.061	1.600	.979	2.614
Chorioamnionitis^b	−.297	.239	1.548	1	.213	.743	.465	1.187
Inotrope use	.373	.260	2.070	1	.150	1.453	.874	2.416
Constant	4.135	1.966	4.423	1	.035	62.518

Nagelkerke R Square .404, P<0.001.

^a

Defined as need for supplemental oxygen at 36 weeks postmenstrual age,

^b

based on histologic examination of placenta.