TABLE 1—
Distribution of Sociodemographic and Well-Being Measures Among Youths Aged 10–15 Years: UK Household Longitudinal Study, 2009
| Variable | No. (Weighted %) |
| Gender | |
| Male | 2436 (51.50) |
| Female | 2463 (48.50) |
| Age, y | |
| 10 | 800 (16.15) |
| 11 | 829 (16.50) |
| 12 | 798 (16.43) |
| 13 | 851 (17.08) |
| 14 | 798 (16.24) |
| 15 | 823 (17.60) |
| Highest parental educational qualification | |
| None | 571 (9.65) |
| Other qualificationa | 252 (4.89) |
| GCSEb | 1026 (21.51) |
| A levelc | 960 (20.32) |
| Other higher qualificationd | 774 (16.73) |
| Degree | 1260 (26.90) |
| Equivalized income quintiles | |
| 1 (lowest) | 1128 (20.00) |
| 2 | 994 (20.01) |
| 3 | 947 (20.02) |
| 4 | 919 (20.00) |
| 5 (highest) | 870 (19.97) |
| Chatting on social Web sites, h/d | |
| < 1 | 3165 (63.93) |
| 1–3 | 1407 (30.03) |
| ≥ 4 | 288 (6.04) |
| Playing computer games on school day, h/d | |
| < 1 | 2548 (51.99) |
| 1–3 | 1920 (39.53) |
| ≥ 4 | 403 (8.48) |
| Using game console on school day, h/d | |
| < 1 | 3220 (64.53) |
| 1–3 | 1367 (29.26) |
| ≥ 4 | 288 (6.22) |
| Watching TV on school day, h/d | |
| < 1 | 1183 (24.42) |
| 1–3 | 2898 (60.13) |
| ≥ 4 | 795 (15.45) |
| Sports participation, d/wk | |
| < 1 | 321 (6.38) |
| 1–2 | 935 (18.60) |
| 3–4 | 1309 (27.12) |
| 5–6 | 872 (18.41) |
| 7 | 1428 (29.48) |
Note. GCSE = General Certificate of Secondary Education. Sample size was n = 4899.
a
E.g., Certificate of Secondary Education, skills certifications, apprenticeships, clerical qualification.
b
Exams taken at age 16 (year 11).
c
Exam taken at age 18 (year 13).
d
E.g., teaching, nursing or diploma certifications–qualifications.