Odds ratios (95% confidence intervals) for higher centile groups on the measure of attentional problems in comparison with the group with the lowest levels of attentional problems after adjustment for covariates*

OutcomesGroup 2 v Group 1Group 3 v Group 1Group 4 v Group 1 Group 5 v Group 1
*Data provided by the authors. Group centiles on attentional problems: group 1, 1–50; group 2, 51–75; group 3, 76–90; group 4, 91–95; group 5, 96–100.
Below 12 year old average on Burt reading test at age 18 years1.3 (1.0 to 1.6)1.6 (1.0 to 2.6)2.0 (1.0 to 4.1)2.6 (1.0 to 6.6)
Left school before age of 161.5 (1.2 to 2.0)2.2 (1.3 to 3.9)3.3 (1.4 to 7.9)4.9(1.6 to 15.6)
Left school without qualifications1.5 (1.3 to 1.8)2.3 (1.6 to 3.3)3.4 (2.0 to 6.1)5.2 (2.4 to 11.0)
Arrested1.4 (1.0 to 1.9)1.9 (1.1 to 3.4)2.6 (1.1 to 6.3)3.6 (1.1 to 11.7)