Table 2.
Characteristics of participants
| Characteristics | Participantsa (n = 1254) | British community sampleb |
|---|---|---|
| Gender | ||
| Boys, n (%) | 646 (51.5) | |
| Girls, n (%) | 608 (48.5) | |
| Grade level | ||
| P4 (≈8 years old), n (%) | 81 (6.5) | |
| P5 (≈9 years old), n (%) | 1115 (88.9) | |
| P6 (≈10 years old), n (%) | 58 (4.6) | |
| NIMDM deprivation rankc, median (SD) | 430 (245.9) | |
| SDQ total difficulties, mean (SD) | 12 (3.2) | 6.6 (6.0) |
| SDQ prosocial subscale, mean (SD) | 8.3 (2.1) | 7.2 (2.4) |
| SDQ emotion subscale, mean (SD) | 1.5 (2.0) | 1.4 (1.9) |
| SDQ conduct subscale, mean (SD) | 2.3 (1.0) | 0.9 (1.6) |
| SDQ hyperactivity subscale, mean (SD) | 4.1 (1.3) | 2.9 (2.8) |
| SDQ peer problems subscale, mean (SD) | 4.1 (0.9) | |
| CHU9D original tariff, mean (SD) | 0.84 (0.11) | |
| CHU9D alternative tariff, mean(SD) | 0.80 (0.13) | |
| CHU9D algorithm using five SDQ subscales, mean(SD) | 0.84 (0.05) | |
| CHU9D algorithm using three SDQ subscales, mean(SD) | 0.83 (0.04) | |
aParticipants had responses at 3 time points for a total of 3762 observations
bFrom British sample 8208 teachers of children aged 5–15 http://www.sdqinfo.org/norms/UKNorm1.pdf
cLower rank = higher deprivation