Table 3.

Mean estimated fetal weight and newborn measurements according to maternal height, weight and lean mass at first antenatal visit

Maternal measurement	n	Estimated fetal weight (g)			Birthweight (kg)	Crown‐heel length (cm)	Head circumference (cm)
		15 weeks	25 weeks	35 weeks
Height (cm)
<159	81	125.2	745	2358	2.94	48.5	34.0
−163	92	127.7	765	2456	2.94	48.7	34.1
−167	95	134.3	782	2515	3.10	49.0	34.3
>167	92	130.7	776	2513	3.09	49.2	34.4
Change per 5 cm		1.7	9.3	49.1	0.047	0.293	0.131
P for trend		0.093	0.114	0.001	0.012	0.002	0.04
Weight (kg)
<55	90	130.2	752	2426	2.88	48.4	33.9
−62	90	126.6	747	2402	3.01	48.8	34.1
−73	89	131.1	770	2462	3.03	49.1	34.3
>73	91	130.9	801	2571	3.16	49.3	34.5
Change per 5 kg		0.2	5.9	20.9	0.037	0.139	0.092
P for trend		0.633	0.019	0.001	0.0001	0.001	0.001
Lean mass (kg)
<40	62	127.2	744	2403	2.83	48.1	33.9
−45	116	129.2	750	2403	3.00	48.9	34.1
−50	102	130.2	776	2506	3.04	49.0	34.2
>50	78	130.8	798	2534	3.16	49.2	34.5
Change per 5 kg		0.6	13.1	39.8	0.066	0.261	0.184
P for trend		0.504	0.010	0.003	0.0001	0.002	0.001

Regression coefficients obtained from a model including maternal age, parity and socio‐economic status are expressed as change in estimated fetal weight and neonatal measurement per 5 cm (height) or per 5 kg (weight and lean mass). Results represent the predicted mean values from the regression model.