A total of 6,189 complaint issues were made to health and social care (H.S.C.) trusts throughout Northern Ireland in 2016/17, according to a report released by the Department of Health.
On average, H.S.C. trusts took 24.7 working days to provide a substantive response to complaints received in 2016/17.
The total number of complaints received per H.S.C. area for 2016/17 are as follows: Belfast - 2,007; South Eastern - 1,076; Southern - 1,046; Western 1,030; Northern - 869 and Northern Ireland Ambulance Service - 161.
More than half of all complaints (3,703) were received by Acute Programme of Care (P.O.C.).
The Western H.S.C. Trust reported the highest number of complaint issues relating to the Maternal and Child Health P.O.C. (126 - 35.6%).
The Southern H.S.C. Trust reported the highest number of complaint issues relating to the Family and Child Care P.O.C. (145 - 31.6%), Mental Health P.O.C. (133 - 30.9%), Elderly Services P.O.C. (93 - 24.6%), Learning Disability P.O.C .(46 - 34.3%) and Sensory Impairment and Physical Disability P.O.C. (22 - 36.1%).
The South Eastern H.S.C. Trust reported the highest number of complaint issues relating to the Primary Health and Adult Community P.O.C. (72 - 43.1%) and Prison Healthcare 46 (100%) of which it is the sole provider in Northern Ireland.
Belfast and Southern were the only two H.S.C. Trusts to achieve their targets set out for complaints relating to staff attitude, behaviour, communication and information.
Patients aged 75 and over were the age group to make the highest number of complaints (either in person or on their behalf) - 509.
When compared to their female counterparts (1,793), male patients (1,311) were less likely to complain or to have a complaint lodged on their behalf.
To access the full report visit the Department for Health website.