New figures from the NHS Information Centre show that the number of people held in detention under the Mental Health Act at 31st March 2011 increased by 5%, from 19,947 in 2009/10 to 20,938 in 2010/11.
This is despite the number of formal admissions for treatment and new Community Treatment Orders having fallen since the previous reporting period.
The increase can be attributed to a 29% rise in people on Community Treatment Orders at 31st March as well as an increase of 0.2% in people detained in hospital.
Inpatients formally detained in hospitals under the Mental Health Act 1983 and patients subject to supervised community treatment, Annual figures, England 2010/11. NHS Information Centre, 11 Oct 2011.