Summary of selected demographic characteristics self-reported by the 27 808 children completing the Middle Childhood Survey (MCS)
| Demographic item | Sample | Prevalence | |
| (n) | % | (n) | |
| Age of child | 27 808 | ||
| 10 years or younger | 0.5 | (135) | |
| 11 years | 54.7 | (15 198) | |
| 12 years | 44.1 | (12 259) | |
| 13 years or older | 0.8 | (216) | |
| Sex of child | 27 808 | ||
| Female | 49.5 | (13 754) | |
| Male | 50.5 | (14 054) | |
| Number of people living in child’s home (main residence) | 27 803 | ||
| 3 or less | 15.1 | (4187) | |
| 4 | 35.8 | (9948) | |
| 5 | 27.8 | (7718) | |
| 6 or more | 21.4 | (5950) | |
| Main language spoken at home | 27 803 | ||
| English | 87.3 | (24 272) | |
| Arabic | 1.9 | (525) | |
| Vietnamese | 1.3 | (365) | |
| Cantonese | 1.1 | (296) | |
| Mandarin | 1.0 | (278) | |
| Hindi | 0.8 | (211) | |
| Tagalog | 0.5 | (141) | |
| Spanish | 0.4 | (99) | |
| Greek | 0.2 | (49) | |
| Italian | 0.1 | (35) | |
| Other | 5.5 | (1532) | |
| Child made use of MCS audio recording | 27 803 | 2.5 | (695) |
| Child received assistance from an adult to complete survey | 27 802 | 5.0 | (1398) |