Table 3 Final study analytic samples
| ASD | POP |
|---|---|
| Likely ASD sample | Likely POP sample |
|
N = 274 All children initially identified as presumptive ASD based on previous diagnosis of ASD—data from the subset who completed the study suggest an 84% likelihood of final classification ASD if non-responders/non-completers had enrolled and completed the study. |
N = 2599 Children identified as presumptive POP from random sample of birth certificates minus the 9 children who had a positive autism screen at enrollment |
|
N = 148 Children initially identified as potential DD or POP who were enrolled and had a positive autism screen—data from the subset who completed the study suggest a 51% likelihood of final classification ASD if non-completers had completed the study. | |
| Total N = 422 | N = 2599 |
| Final, complete ASD sample | Final, complete POP sample |
| N = 118 | N = 159 |