Socioeconomic differences in childhood length/height trajectories in a middle-income country: a cohort study

BMC Public Health

Table 3 Crude & multiple analysis of mean growth rate per category of maternal education, N = 12,463

	Per category of mother’s education change in length/height rate
	Unadjusted model			Model 1			Model 2			Model 3
	¹Coef	95% CI	P for trend	Coef	95% CI	P for trend	Coef	95% CI	P for trend	Coef	95% CI	P for trend
Girls N = 6,010
Birth length, cm	0.22	(0.14, 0.29)	<0.001	0.24	(0.17, 0.32)	<0.001	0.20	(0.12, 0.27)	<0.001	0.17	(0.10, 0.25)	<0.001
Growth, cm/year:
0-3 months	0.31	(-0.03, 0.65)	0.08	0.11	(-0.23, 0.44)	0.53	-0.03	(-0.37, 0.31)	0.85	-0.04	(-0.38, 0.30)	0.81
>3-12 months	0.07	(-0.07, 0.20)	0.33	0.06	(-0.08, 0.20)	0.39	0.01	(-0.13, 0.14)	0.94	0.02	(-0.12, 0.16)	0.79
>12-34 months	0.31	(0.18, 0.43)	<0.001	0.28	(0.15, 0.41)	<0.001	0.22	(0.10, 0.35)	0.001	0.25	(0.12, 0.38)	<0.001
>34-84 months	0.01	(-0.05, 0.08)	0.71	0.03	(-0.04, 0.09)	0.45	-0.01	(-0.08, 0.05)	0.72	-0.02	(-0.09, 0.05)	0.56
Boys N = 6,453
Birth length, cm	0.15	(0.07, 0.23)	<0.001	0.19	(0.11, 0.27)	<0.001	0.13	(0.06, 0.21)	0.001	0.11	(0.03 , 0.18)	0.005
Growth, cm/year:
0-3 months	0.83	(0.48, 1.17)	<0.001	0.50	(0.16, 0.84)	0.004	0.37	(0.03, 0.70)	0.03	0.38	(0.04 , 0.72)	0.03
>3-12 months	0.08	(-0.06, 0.22)	0.25	0.08	(-0.06, 0.22)	0.27	0.04	(-0.10, 0.18)	0.57	0.04	(-0.11 , 0.18)	0.62
>12-34 months	0.23	(0.11, 0.35)	<0.001	0.21	(0.09, 0.33)	0.001	0.16	(0.04, 0.28)	0.01	0.17	(0.04 , 0.29)	0.008
>34-84 months	0.03	(-0.03, 0.10)	0.33	0.04	(-0.02, 0.11)	0.17	0.01	(-0.06, 0.07)	0.79	0.00	(-0.06 , 0.07)	0.99

Model 1: adjusted for urban or rural residence and East or West of Belarus.
Model 2: as Model 1 additionally adjusted for mid-parental height.
Model 3: as Model 2 additionally adjusted for study trial arm, maternal smoking (never, ever or unknown) and older siblings (none, 1 or >1).
¹Coef = Coefficient.

ISSN: 1471-2458