Table 2.

 Specialties covered by 3921 reports

	No of records
Addiction	32
AIDS	90
Allergy	17
Burns-trauma	11
Cancer	439
Cardiovascular diseases	188
Carer	35
Dental	50
Dermatology	39
Endocrinology	60
ENT	24
Gastrointestinal diseases	100
General or healthy populations	235
Gynaecology	29
Infection	11
Intensive care	12
Mental handicap	27
Mental health	299
Neurological diseases	253
Older people	324
Ophthalmology	47
Orthopaedics	65
Palliative	22
Paediatric or adolescent	232
Proxy	71
Rehabilitation	114
Renal	53
Rheumatology (musculoskeletal)	462
Respiratory	202
Urology	71
Other*	381
Total†	3995

^*Unclassifiable. 

^†Total exceeds total number of reports because some studies relate to more than one subject.