An educational intervention to prevent overweight in pre-school years: a cluster randomised trial with a focus on disadvantaged families

Table 4 Baseline and final BMI z-scores of the study children and their parents

	n	Child age 2-years			Child age 4-years			Change
	n	Mean	SD	SE	Mean	SD	SE	Mean	SD	SE
Child BMI z-score:
Control centres
C1	8	0.08	0.52	0.18	0.75	0.47	0.17	0.67	0.31	0.11
C2	9	−0.04	1.02	0.34	0.64	1.02	0.34	0.68	0.33	0.11
C3	8	0.78	1.63	0.58	0.97	1.16	0.41	0.19	0.92	0.33
C4	9	−0.00	1.03	0.34	0.67	0.65	0.22	0.67	0.62	0.21
All	34	0.19	1.11	0.19	0.75	0.84	0.14	0.56	0.60	0.10
Intervention centres
H1	13	1.00	1.29	0.36	0.61	1.46	0.41	−0.39	0.69	0.19
H2	13	0.52	1.32	0.37	0.26	0.87	0.24	−0.26	1.04	0.29
H3	11	1.22	1.24	0.37	1.30	0.82	0.25	0.08	1.03	0.31
H4	9	0.57	1.50	0.50	0.47	1.07	0.36	−0.10	1.29	0.43
All	46¹	0.83	1.32	0.19	0.65	1.13	0.17	−0.18	0.99	0.15
Parent BMI:
Control centres
All	34	25.35	4.83	0.83	25.83	5.09	0.87	0.48	1.36	0.23
Intervention centres
All	47	26.53	5.81	0.85	27.28	6.64	0.97	0.75	2.94	0.43

¹BMI z-score could not be calculated for one child due to morbid obesity beyond WHO range

ISSN: 1471-2458