Table 3: Demographics for the linked and total Millennium Cohort Study populations.
Observations: MCS = Millennium Cohort Study; NCCHD =National Community Child Health Dataset; GP = Welsh Longitudinal General Practice dataset; EDDS = Emergency Department Data Set; PEDW = Patient Episode Database for Wales; Child Health = Child Health Systems Programme; AE 2 = Accident and Emergency version 2 dataset; SMR01 = General Acute Inpatient and Day Case – Scottish Morbidity Record; CM = cohort member; SES = Socioeconomic status.
| All | Wales | Scotland | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MCS | MCS | NCCHD | GP | EDDS | PEDW | MCS | Child Health | AE2 | SMR01 | |
| Number in MCS4 | 13857 | 1838 | 1834 | 1537 | 1200 | 1334 | 1431 | 1306 | 1033 | 833 |
| Demographics and descriptives (% unless otherwise indicated) | ||||||||||
| CM Gender (MCS1) | ||||||||||
| Male | 50.7 | 53.0 | 52.9 | 53.5 | 56.8 | 56.3 | 50.2 | 50.4 | 52.3 | 53.3 |
| Female | 49.3 | 47.0 | 47.1 | 46.5 | 43.2 | 43.7 | 49.8 | 49.6 | 47.7 | 46.7 |
| Main respondent age at birth of CM (grouped, MCS1) | ||||||||||
| 12-19 | 8.6 | 8.8 | 11.3 | 11.7 | 13.5 | 13.2 | 8.5 | 11.9 | 11.7 | 12.9 |
| 20-29 | 46.8 | 47.5 | 49.5 | 49.4 | 50.1 | 49.0 | 41.3 | 43.2 | 47.0 | 46.1 |
| 30-39 | 42.5 | 40.7 | 37.6 | 37.6 | 35.4 | 36.5 | 46.3 | 42.7 | 39.0 | 38.9 |
| 40+ | 2.2 | 2.9 | 1.5 | 1.3 | 1.1 | 1.3 | 3.9 | 2.1 | 2.3 | 2.1 |
| Mode of household size | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Main respondent relationship to CM (MCS1) | ||||||||||
| Natural mother | 99.7 | 99.8 | 99.7 | 99.7 | 99.6 | 99.7 | 100.0 | 99.7 | 100.0 | 99.5 |
| Main respondent relationship to CM (MCS4) | ||||||||||
| Natural mother | 96.6 | 98.0 | 97.8 | 97.7 | 97.2 | 98.0 | 100.0 | 100.0 | 100.0 | 100.0 |
| CM ethnicity | ||||||||||
| White | 83.7 | 97.2 | 97.2 | 97.4 | 97.0 | 97.2 | 97.6 | 97.3 | 97.3 | 97.6 |
| Other | 16.3 | 2.8 | 2.8 | 2.7 | 3.0 | 2.8 | 2.4 | 2.7 | 2.7 | 2.4 |
| Parents/Carers in the household | ||||||||||
| Both natural parents | 72.1 | 66.3 | 66.4 | 65.9 | 63.3 | 65.2 | 70.3 | 69.6 | 69.2 | 67.7 |
| Natural mother and step-parent | 5.0 | 6.8 | 6.8 | 6.9 | 7.0 | 6.7 | 6.8 | 6.6 | 6.9 | 7.9 |
| Natural mother only | 20.2 | 23.5 | 23.5 | 23.6 | 25.5 | 24.9 | 21.1 | 22.0 | 22.2 | 23.2 |
| Other | 2.6 | 3.5 | 3.3 | 3.6 | 4.2 | 3.2 | 1.8 | 1.8 | 1.7 | 1.2 |
| SES | ||||||||||
| Management and Professional | 28.8 | 23.6 | 23.6 | 22.8 | 22.3 | 21.8 | 23.4 | 24.1 | 22.5 | 19.0 |
| Intermediate | 17.4 | 11.8 | 11.9 | 12.1 | 12.7 | 11.3 | 14.8 | 14.4 | 15.4 | 15.7 |
| Small employer and self-employed | 7.1 | 5.0 | 5.0 | 5.2 | 5.0 | 5.5 | 4.7 | 5.0 | 3.8 | 4.9 |
| lower supervisory and technical | 4.4 | 3.1 | 2.9 | 2.9 | 2.8 | 3.5 | 3.1 | 2.6 | 3.2 | 3.3 |
| Semi-routine and routine | 33.8 | 18.8 | 18.8 | 18.4 | 19.6 | 18.5 | 19.2 | 18.9 | 19.5 | 19.9 |
| Not applicable | 8.5 | 37.7 | 37.8 | 38.6 | 37.5 | 39.4 | 38.8 | 35.1 | 35.5 | 37.3 |