Pragmatic controlled trial to prevent childhood obesity in maternity and child health care clinics: pregnancy and infant weight outcomes (The VACOPP Study)

Table 4 Estimates and 95% confidence intervals for weight-for-length SDS from multilevel mixed-effects linear regression model

Weight-for-length SDS from 0 to 12 months of age	Coefficient	95% CI	p-value
Group (intervention/control)	−0.71	−0.31 to 0.16	0.56
Age in months	−0.06	0.02 to 0.01	0.002
Age in months ²	−0.004	−0.007 to −0.002	0.002
Group * Age	−0.006	−0.023 to 0.034	0.71

SDS, standard deviation score; non-linear relationship between SDS and age of the child was modelled using polynomial age in months ²; Group * Age = interaction between age of the child and the group.

ISSN: 1471-2431