Among reception pupils, 9.6% of boys were obese compared with 9.1% of girls.
Overall 9.5% of reception pupils are obese and another 13.1% overweight, both up slightly on the previous year.
Among reception pupils, Windsor and Maidenhead in Berkshire had the lowest proportion of children who were overweight, at 5.5%, followed by Kingston upon Thames on 6%.
Among reception pupils, Windsor and Maidenhead in Berkshire had the lowest proportion of children who were overweight, at 5.5%, followed by Kingston upon Thames at 6%.
Although Tom was formally admitted to year 1, the headteacher agreed to have him taught with the reception pupils, his mother says.
The school, in Warndon, is putting on three performances, one by children in years one and two, one by reception pupils, and one by children in nursery.
"There'll be 30 reception pupils arriving and on admission we will talk about school meals and how pupils can't just eat what they fancy and I'll explain how it impacts on pupils' wellbeing and progress.
The first, the Nuffield Early Language Intervention, gave TAs three days of training with detailed lesson plans to lead short, structured sessions on topics such as time and what we wear, with small groups of nursery and reception pupils.
The eighth year of data from the Department of Health's National Child Measurement Programme shows that while 22.5% of reception pupils are overweight or obese, many more – 33.5% – have become worryingly overweight by the time they have turned 10 or 11 in year six.
Some 75 reception pupils in Bristol will start their schooldays in a converted police station this week.
