There are many threats to generalizability, some of which the AAU attempted to correct by using demographic variables to weight prevalence estimates.
For the fist time such reduction was directly associated with the intervention instead of being mediated by a decrease in low birth weight prevalence or an increase in average weight at birth [23].
In this study no savings due to the intervention were estimated, and infant deaths averted were extrapolated from the reduction of the low birth weight prevalence rather than being a direct consequence of the intervention.
Very-low birth-weight prevalence was not affected by parity.
No remarkable differences were found in excess weight prevalence by parental SES between both cohorts.
The peak very low birth weight prevalence was in September (6.4%, 95% CI: 5.5-7.4).
Low birth weight (prevalence 5.2%) and prematurity (prevalence 4.8%) were associated with SO(2) and somewhat less strongly with TSP.
6 7 The Organization for Economic Co-operation and Development (OECD) has predicted an increase of 7% in excess weight prevalence in adulthood over the period spanning 2010 to 2020.
This concern has been justified by the fact that excess weight prevalence is increasing in the United States [ 1], Europe [ 2] and Latin America [ 2, 3].
The excess weight prevalence has grown steadily over the past two decades in Spanish children and also in children from most countries [ 3] even at early ages [ 4].
A trend of reduction in excess weight prevalence in males with late sexual maturation was also observed, despite non-significant values.
