The prevalence of obesity has increased in reception from 9.5% in 2017/18 to 9.7% in 2018/19. For year 6 it remained similar at 20.2% in 2018/19 (the change from 20.1% in 2017/18 is not statistically significant).
The prevalence of severe obesity has increased in year 6 from 4.2% in 2017/18 to 4.4% in 2018/19. For reception it remained similar at 2.4% in 2018/19.
Over a longer time period, obesity prevalence is lower for reception compared to 2006/07 and higher for year 6 compared to 2009/10. Note: for year 6, comparisons are not possible with the first years of the NCMP (2006/07 to 2008/09) as low participation levels led to underestimation of obesity prevalence. This, and the impact of other improvements in data quality, should be considered when making comparisons over time. Further information is available in annex B.
Severe obesity prevalence is similar for reception but higher for year 6 over the same time periods.