Entries to sit AS levels have fallen by almost 60 per cent on last year, provisional figures from Ofqual show.
The number of GCSE entries in 2018 increased by just under 1 per cent compared to 2017, but there was a fall across all non-English Baccalaureate subjects except art and design.
A level entries dropped slightly by 3 per cent on last year.
Entries for English A-level subjects have fallen by 14 per cent since 2016.
Overall entries for AS subjects in England fell from 659,880 to 269,090 in 2018, continuing a declining trend which was seen in 2016 and 2017.
In 2015, AS-level entries stood at 1,331,955, meaning that entries have now cumulatively dropped by 1,062,865.
Ofqual said that the drop is “largely due to the decoupling of AS from A levels”, which has meant less schools are interested in offering the qualification.