I NOTE with interest your report and editorial regarding the review being undertaken at Aberdeen Royal Infirmary by Healthcare Improve­ment Scotland ("NHS refuses to reveal fears about care quality at hospital and "NHS needs to be more transparent", The Herald, September 5).

I would like to address the point raised about secrecy. In June, Healthcare Improvement Scotland openly and proactively published comprehensive terms of reference for the investigation into the safety and quality of care at Aberdeen Royal Infirmary. This independent investigation follows up concerns expressed about a range of matters, including the working relationships between clinical staff and senior management in NHS Grampian.

These concerns are being robustly and fully investigated by a team led by Healthcare Improvement Scotland. To date the review team has spoken to more than 300 staff working in the health service in Grampian as well as 220 patients and carers. In fairness to all those we have spoken to, and those patients who depend on health services at Aberdeen Royal Infirmary, it is essential that the review is not jeopardised by placing unsubstan­tiated material into the public domain.

In recent memory, editorials in your newspaper have stated that we have "a reputation for getting things done" and that we're "tough and outspoken". The organisation is fully committed to living up to that reputation and delivering a final report that is thorough, fair, written in language that everyone will understand and that will lead to real improvements for patient care when it is published later this year.

It is important that the integrity of a professional investigation is not jeopardised by the premature release of information.

Dr Denise Coia,

Chair, Healthcare Improvement Scotland, Delta House, 50 West Nile Street, Glasgow.