To ask the Secretary of State for Health and Social Care, how many complaints were made by prisoners in (a) public and (b) private sector prisons in each of the last three years; and how many of those complaints were escalated to the Parliamentary and Health Services Ombudsman in each of those years.
National Health Service complaints are recorded by subject of the complaint, the organisation being complained about and the professional grouping. Prisoners are not specifically identified in these data sets and it is therefore not possible to provide figures in the format requested.
Data in respect of complaints referred to the Health Services Ombudsman is not collected. However the Ombudsman publishes annual data on the number of complaints they receive.