Neonatal central adiposity ( determined using waist : length ratio ) was negatively associated with maternal age , and positively associated with the following parameters : smoking status , maternal pre-pregnancy arm circumference , percentage energy from saturated fat in late pregnancy , postprandial glucose at @ weeks gestation and membership of the control group with a positive trend towards association with trimester @ glycaemic load R@adj @ % ( F = @ , p < @ ) .