The charity said many disabled people were missing out on work

Capability Scotland said its figures proved many families with a disability were living "on the edge" of society.

The charity said employment initiatives were not reaching many disabled people north of the border.

Spokeswoman Michelle Hegarty said all disabled people were entitled to a decent standard of living.

Capability Scotland said its report, Living on the Edge, illustrated the "hidden costs" of living with a disability.

All disabled people should be entitled to a decent standard of living, whether or not they are in work Michelle Hegarty Capability Scotland

It said disabled people had to find extra money to pay for special diets, clothing, medicines, equipment and heating.

The charity said the current benefits system did not take these costs into account and disabled people were being penalised as a result.

Ms Hegarty said: "It has become apparent for many disabled people that the UK Government's emphasis is firmly on work as the only route out of poverty.

Public transport

"Yet, Capability Scotland's own research has shown that many disabled people, and parents of disabled children and carers in particular, are not being reached by employment initiatives."

The charity said more than half of disabled households living on less than �200 per week still use a car, because public transport remains mostly inaccessible.

Ms Hegarty said the prime minister had failed to outline how the government would help disabled people into work and support those who cannot work.

She said: "All disabled people should be entitled to a decent standard of living, whether or not they are in work.