Section 4. Findings Profile of STC respondents 4.10 Overall, 79% of the children who were resident in an STC at the time of the inspection completed a questionnaire, resulting in a total of 114 questionnaires returned from the three STCs (see Annex 1). 4.11 Of those who filled in a questionnaire, the vast majority were boys (88%). Fewer than one in 10 children (9%) reported that they were under 15 years old and 5% were 18 years or older. 4.12 Children from black and minority ethnic backgrounds accounted for 56% of the STC population and this proportion varied considerably between centres, from 38% at Rainsbrook to 68% at Medway and 69% at Oakhill. One in eight children (13%) identified as Gypsy, Roma or Traveller, ranging from 10% at Medway to 17% at Oakhill. 4.13 When asked about their religious beliefs, about one-third (34%) said they did not have a religion and just over two-fifths (44%) identified as Christian. Eighteen per cent said they were Muslim, ranging from 9% of children at Rainsbrook to 25% at Medway. 4.14 Nearly two-fifths (38%) of children in STCs said they had a health problem at the time of the survey and just under one-third (32%) reported having a disability. 4.15 More than half of children in STCs (53%) reported having been in the care of a local authority, with the highest proportion at Medway (63%). Eight per cent of children in STCs said that they had a child of their own. Profile of YOI respondents 24 4.16 Five young offender institutions (YOIs) were inspected during 2018–19, as well as the specialist Keppel unit, which is part of Wetherby YOI. Overall, 85% of the children detained in YOIs at the time of our inspections participated in the surveys, resulting in a total of 603 completed questionnaires (see Annex 1). 4.17 The majority of children (83%) said they were 16 or 17 years old, while 12% of children said they were 18 years old. 4.18 More than half of children in YOIs (52%) identified as being from a black and minority ethnic background. This varied greatly between YOIs, from 26% at the Keppel unit to 70% at Feltham. Eight per cent of children identified themselves as Gypsy, Roma or Traveller, ranging from 5% at Feltham to 23% at the Keppel unit. 4.19 With regards to religious beliefs, about one-third of children in YOIs (32%) said they did not have a religion, while almost half identified as Christian (47%) and just under one-fifth as Muslim (19%). 4.20 One-third of YOI respondents (33%) reported having a health problem, including more than four-fifths (84%) of children in the Keppel unit. A quarter (25%) of children reported having a disability. The latter varied considerably across the YOI estate, from 15% at Cookham Wood to 67% at the Keppel unit. 4.21 About half (52%) of the children who completed a questionnaire said they had been in the care of a local authority at some point in their lives: this ranged from 46% at Feltham to 77% at the Keppel unit. One in 10 children in YOIs (10%) reported having a child of their own. Children in Custody 2018–19