Demographic data on birth, psychiatric disorders and cerebral palsy for participants and non-responders born in 1974–76 and 1980–8.

The table shows demographic data for the participants and non-responders subdivided into VPT and termborn controls. The last comparison comprises all individuals in both cohorts. **p<0.01; *p<0.05; ns = not significant; acomparison of participants and non-responders born VPT; bcomparison of participants and non-responders in the control group; ccomparison of all VPT and controls; i GA = 39–45; BW, birth weight; GA, gestational age; VPT; very preterm.