30,000 people had went through a "stressful" appeals process since PIP's introduction - 21,000 of those going to court.
Shirley-Anne Somerville, the Scottish Government's Social Security Secretary, was critical of the findings, saying. "For disabled people, the stress and anxiety of the application process and face-to-face assessment process are already hallmarks of the UK Government's welfare reforms.
Now this latest analysis shows that those most in need in our society are less likely to get help or have to fight through the courts to get what they are entitled to. Tens of thousands of disabled people are facing greater hardship because they have completely lost their benefits."