Table 7.

Logistic regression analysis of risk factor for static and dynamic true EUGR with Fenton and IW-21.

	B	Error standard	p value	OR	95% CI
Static true EUGR for INTERGROWTH-21st
Gestational age (weeks)	0.944	0.162	<0.0001	2.57	1.87–3.52
Birth weight (g)	−0.008	0.001	<0.0001	0.992	0.989–0.994
Male sex	1.32	0.3	<0.0001	3.77	2.08–6.81
RDS	0.768	0.318	0.016	2.15	1.15–4.02
Anemia	1.34	0.322	<0.0001	3.83	2.04–7.2
ROP ≥ 2	0.951	0.473	0.045	2.58	1.02–6.54
NEC	2.62	1.15	0.023	13.85	1.43–133.96
Static true EUGR for Fenton 2013
Gestational age (weeks)	1.16	0.16	<0.0001	3.21	2.33–4.43
Birth weight (g)	−0.01	0.001	<0.0001	0.99	0.987–0.993
Male sex	0.632	0.283	0.025	1.88	1.08–3.27
RDS	1.27	0.30	<0.0001	3.56	1.94–6.53
Anemia	0.87	0.328	0.008	2.38	1.25–4.53
ROP ≥ 2	0.201	0.501	0.688	1.22	0.45–3.26
NEC	1.68	1.12	0.134	5.37	0.59–48.36
Dynamic true EUGR for INTERGROWTH-21st
Gestational age (weeks)	−0.45	0.13	0.001	0.63	0.49–0.828
Birth weight (g)	0.002	0.001	0.06	1.002	1–1.004
Male sex	0.983	0.271	<0.0001	2.67	1.57–4.54
RDS	0.848	0.304	0.005	2.33	1.28–4.23
Anemia	0.819	0.288	0.004	2.26	1.29–3.98
ROP ≥ 2	0.668	0.45	0.14	1.95	0.79–4.76
NEC	21.18	12,879.7	0.999	1.5E8	0.00–
Dynamic true EUGR for Fenton 2013
Gestational age (weeks)	−0.23	0.12	0.059	0.791	0.62–1.009
Birth weight (g)	0.000	0.001	0.9	1	0.998–1.002
Male sex	0.518	0.259	0.045	1.67	1.01–2.78
RDS	0.79	0.27	0.003	2.22	1.3–3.79
Anemia	0.802	0.28	0.005	2.22	1.26–3.92
ROP ≥ 2	1.11	0.54	0.042	3.05	1.04–8.95
NEC	20.5	12,827.69	0.99	8.0E8	0.00–

RDS, respiratory distress syndrome; NEC, necrotizing enterocolitis; ROP, retinopathy of prematurity.