Table 1.
Percentage of children with any psychiatric disorder and mean symptom score on the parent, teacher, and self completed strengths and difficulties questionnaire by relative age for England and Wales
| Outcome measure | Oldest third (n=3134) | Middle third (n=3014) | Youngest third (n=3235) | Significance |
|---|---|---|---|---|
| All ages | ||||
| Any psychiatric diagnosis* (n=9383) | 8.3 (7.4 to 9.3) | 8.8 (7.8 to 9.8) | 9.9 (8.9 to 10.9) | χ2=4.58, P=0.03 |
| Parent reported symptoms† (n=9267) | 8.2 (8.0 to 8.4) | 8.4 (8.2 to 8.6) | 8.8 (8.6 to 9.0) | r=0.05, P<0.001 |
| Teacher reported symptoms† (n=7452) | 6.2 (5.9 to 6.4) | 6.6 (6.3 to 6.8) | 7.0 (6.8 to 7.3) | r=0.06, P<0.001 |
| Self reported symptoms† (n=3799) | 10.2 (9.9 to 10.4) | 10.4 (10.1 to 10.7) | 10.6 (10.4 to 10.9) | r=0.04, P=0.02 |
| Ages 5-10 | (n=1786) | (n=1712) | (n=1843) | |
| Any psychiatric diagnosis* (n=5341) | 7.4 (6.2 to 8.4) | 7.1 (5.9 to 8.3) | 8.5 (7.2 to 9.8) | χ2=1.34, P=0.2 |
| Parent reported symptoms† (n=5288) | 8.3 (8.0 to 8.6) | 8.5 (8.2 to 8.8) | 9.0 (8.8 to 9.3) | r=0.05, P<0.001 |
| Teacher reported symptoms† (n=4371) | 6.2 (5.9 to 6.5) | 6.7 (6.4 to 7.0) | 7.3 (7.0 to 7.6) | r=0.08, P<0.001 |
| Ages 11-15 | (n=1348) | (n=1302) | (n=1392) | |
| Any psychiatric diagnosis* (n=4042) | 9.5 (7.9 to 11.1) | 11.0 (9.3 to 12.7) | 11.7 (10.0 to 13.4) | χ2=3.49, P=0.06 |
| Parent reported symptoms† (n=3979) | 8.0 (7.7 to 8.3) | 8.3 (8.0 to 8.6) | 8.6 (8.2 to 8.9) | r=0.04, P=0.02 |
| Teacher reported symptoms† (n=3081) | 6.1 (5.7 to 6.4) | 6.3 (5.9 to 6.7) | 6.6 (6.2 to 7.0) | r=0.03, P=0.06 |
| Self reported symptoms† (n=3799) | 10.2 (9.9 to 10.4) | 10.4 (10.1 to 10.7) | 10.6 (10.4 to 10.9) | r=0.04, P=0.02 |
*
Percentage (95% confidence interval); χ2 test.
†
Mean score (95% confidence interval); Pearson correlation coefficient.