Pupils at Birmingham grammar schools are achieving better A-level results than children studying at any other type of institution, according to new data.

The Birmingham Post has analysed statistics which measure A-level success - and the results reveal that grammar school pupils last summer outstripped those at colleges and comprehensives, as well as independents which charge fees up to £12,000 a year.

We measured A-level success by both analysing the percentage of pupils who get at least three grades between A* and E and by converting the grades into an average score.

And our analysis showed Birmingham’s eight grammar schools came out on top - with an estimated 99.4 per cent of selective pupils achieving three grades between A* and E at A-Level in 2014/15.

This compares to an estimated 72.5 per cent among independent school pupils in Birmingham, 71 per cent among college students and 62.3 per cent of comprehensive pupils.

We also analysed exam success by the average points score per A-level - the higher the score, the better the grades.

Grammar schools performed the best on this measure in Birmingham as well, with the average score among the selective schools in the city being 241.3 points per exam entry.

This compares to 221.5 points for independent pupils, 194.8 among comprehensive pupils and 194.4 among college students.

The best grammar school in Birmingham was King Edward VI Camp Hill School for Boys, while the top independent school was King Edward VI High School for Girls. The best comprehensive school was Colmers School and Sixth Form College in Rubery.

Denis Ramplin, spokesman for King Edward VI schools in Birmingham, said the chain was “proud” of the success of all eight of its schools - including five grammars.

It comes as the selective schools have overhauled their admissions policy in a bid to give more places to children from disadvantaged families.

Through an initiative called ‘Opening Doors’, the chain works with primary schools in deprived areas – inviting them to put forward “gifted” pupils who they believe could pass the 11-plus.

The pupils are then each invited to take part in five “familiarisation” sessions at the schools, where they learn more about the test.

The scheme has been a success and now a quarter of pupils in Year 7 at King Edward VI Aston are eligible for free school meals. Meanwhile, a fifth of Year 7 pupils at King Edward VI Camp Hill School for Boys and King Edward VI Five Ways School are classed as disadvantaged.

King Edward VI Handsworth School for Girls and King Edward Camp Hill School for Girls each have 15 per cent of their Year 7’s who are entitled to free lunches.

Mr Ramplin added: “In addition to the academic successes of our schools, all of our grammar and independent schools are making significant steps to address social mobility.

“We are changing perceptions and promoting the fact that all of our selective schools are accessible for all children in the city whatever their background.

“we are breaking new ground in education by creating and developing innovative, enriching and positive opportunities across the city.”

HOW SCHOOLS DID AT A-LEVELS IN BIRMINGHAM IN 2014/15:

Type of school; 3 at A*-E; Points per A-Level entry; Number of schools in data

Grammar - 99.4; 241.3; 8

College - 71; 194.4; 4

Independent - 72.5; 221.5; 8

Comprehensive - 62.3; 194.8; 41