1. The change from 9.6% in 2016/17 is not statistically significant.
2. For year 6, comparisons are not possible with the first years of the NCMP (2006/07 to 2008/09) as obesity prevalence was an underestimate due to low participation.
3. Deprivation level has been defined by the deprivation decile of the local super output area in which the child lives.
4. For analysis of deprivation over time, deprivation decile is based on postcode of the school in this chart as postcode of the child was of poor quality in the early years of the NCMP.
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