112 CHAPTER 4 Percentage of children with overweight (including obesity) around the age of two Number of children with a BMI score in the categories ‘overweight’ or ‘obesity’ during the contact moment with youth healthcare around the age of two Number of children with available data on BMI Inquiry among all youth healthcare organizations Number of out-of-home placements for children before the age of 2 (per 1.000) Number of children till the age of two who at any time received a youth protection measure for at least one day, overlapping with youth care with residence Number of children till the age of 2 CBS-microdata through DIAPER* * DIAPER (Data-InfrAstructure for ParEnts and childRen) is a nationwide population-based data infrastructure that integrates routinely collected data from three Dutch nationwide data sources (Perined, Vektis, Statistics Netherlands) at individual level. More information in Dutch can be found at www.rivm nl/diaper. References 1. Hoftiezer, L., Hof, M. H., Dijs-Elsinga, J., Hogeveen, M., Hukkelhoven, C. W., & van Lingen, R. A. (2019). From population reference to national standard: new and improved birthweight charts. American journal of obstetrics and gynecology, 220(4), 383.e1-383.e317. 2. RIVM. Indicatoren Kansrijke Start: Een Delphi-studie [Indicators Solid Start: a Delphi study]. Bilthoven, the Netherlands; 2019
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