Evidence and Chiropractic in the UK was reviewed by Professor Bronfort in 2010. This analysis was put together to assist the General Chiropractic Council have an official place from which to regulate the activities of chiropractors in the UK. The list of conditions that have been scientifically recorded to be helped by chiropractic intervention is available here. The original paper was published in the Journal Chiropractic and Osteopathy.
The oldest established school of Chiropractic in the USA; Palmer School of Chiropractic has a slightly different approach found here. The author of which has also worked with the Royal College of Chiropractors in the UK in providing an evidence base for manual therapy.