Table 1 Composition of the complete sample.
| Â | Â | Number of Families | Number of Trios | ||
|---|---|---|---|---|---|
Site | Number of Individuals with Autism | Simplex | Multiplex | Complete | Incomplete |
II University of Naples (Naples, Italy) | 121 | 121 | - | 107 | 14 |
I.R.C.C.S. "Ospedale Bambino-Gesù" (Rome, Italy) | 42 | 42 | - | 38 | 4 |
I.R.C.C.S. "Oasi Maria S.S." (Troina, Italy) | 42 | 40 | 1 | 41 | 1 |
U.C.B.M. (Rome, Italy) | 21 | 21 | - | 21 | - |
II University of Rome (Rome, Italy) | 22 | 20 | 1 | 21 | - |
University of Milan (Milan, Italy) | 15 | 15 | - | 15 | - |
University of Turin (Turin, Italy) | 4 | 4 | - | 4 | - |
Italian Families | 267 | 263 | 2 | 247 | 19 |
A.G.R.E. Consortium | 60 | 15 | 23* | 38 | - |
Southwest Autism Research Center (Phoenix, AZ) | 44 | 34 | 4 | 38 | - |
Caucasian-American Families | 104 | 49 | 27 | 76 | - |
Total Sample | 371 | 312 | 29 | 323 | 19 |