Table 4.

Associations between discordances of fetal growth parameters in the third-trimester with growth discordance by using multivariate logistic regression model^a

Parameter	Early third-trimester						Late third-trimester
	B	S.E.	Wald	P	OR	95%CI	B	S.E.	Wald	P	OR	95% CI
BPD	0.20	0.07	7.82	0.005	1.23	1.06–1.39	0.16	0.05	8.58	0.003	1.17	1.05–1.30
HC	0.28	0.10	7.92	0.005	1.32	1.09–1.61	0.17	0.07	6.66	0.010	1.19	1.04–1.35
AC	0.21	0.05	15.48	< 0.001	1.23	1.11–1.36	0.18	0.04	21.55	< 0.001	1.20	1.11–1.29
FL	0.27	0.06	17.84	< 0.001	1.31	1.16–1.49	0.32	0.05	34.79	< 0.001	1.38	1.24–1.53
EFW	0.16	0.04	19.81	< 0.001	1.17	1.09–1.26	0.16	0.03	38.23	< 0.001	1.17	1.11–1.23

^aBPD biparietal diameter; HC head circumference; AC abdominal circumference; FL femur length; EFW estimated fetal weight; OR odds ratio; CI confidence interval

Note: relative risk is more suitable when prevalence of an outcome is more than 10%, despite common application and acceptance of OR