Exam Results and Mental Health in deprived communities

[Richard]

There seem to have been some ongoing issues arising from the traditional role of exam results alone in determining pass/fail and grades, and the rise of the Comprehensive system, where course-work became an acceptable factor in moderating exam results.
Teacher's estimates of pupil's exam marks, presumably in Comprehensive schools, in the absence of exams during COVID-19 restrictions, have now been moderated by central government.
We are led to believe that Comprehensive exam results this year are disproportionately lower in deprived communities and school children therein are possibly suffering mental health issues as a consequence.
Assuming that public and private schools also set no exams during COVID-19 restrictions, then I am not sure how their 'exam' results have been adjusted by teachers, according to course-work, that are seemingly more acceptable to government assessment and on what criteria.

We must not forget that Examining Boards issuing qualifications are not all of the same standard and that is another factor to consider.