Table 1.
Incidence rates and adjusted hazard ratios for ADHD for each of Rutter’s indicators of adversity (RIA) and for the total RIA-score assessed in infancy.
Fig 1.
Proportion of cohort members developing ADHD over time stratified by RIA-score.
Kaplan-Meier plots showing the proportion of the female (left) and male (right) cohort members developing ADHD over time stratified by RIA-score in infancy (as represented by the curves). Due to the relatively low number of cohort members with 5–6 RIA, these curves were smoothened (local polynomial kernel smoothing (Epanechnikov)) to avoid potential identification of individuals. Furthermore, to remain within the boundaries of the data, the probability of ADHD was manually restricted to zero until the age of 2 years (the beginning of follow-up) for the two curves representing individuals with RIA-scores of 5–6.
Table 2.
The number needed to screen to detect one case of ADHD based on the Rutter’s Indicators of adversity score (RIA-score) assessed in infancy.
Table 3.
Leave-one-out analyses of the association between the Rutter’s Indicators of adversity score (RIA-score) assessed in infancy and ADHD.
Table 4.
The pairwise association between Rutter’s Indicators of adversity assessed in infancy.