Table 1 Summary of the steps and results of phase 1 and 2
From: Autism spectrum disorder prevalence in Italy: a nationwide study promoted by the Ministry of Health
| Â | Â | North (n) (%) | Center (n) (%) | South (n) (%) |
|---|---|---|---|---|
Phase 1 | ||||
 MoE partecipation | ASD diagnosis records | 110 | 167 | 113 |
Phase 2 | ||||
 Schools partecipation | Invited schools | 49 | 87 | 62 |
| Â | Participating schools | 32 (65.3) | 42 (48.3) | 50 (80.6) |
 Parents partecipation | Invited parents | 11,190 | 13,628 | 11,005 |
| Â | SCQ not filled | 4308 (38.5) | 8631 (63.3) | 6584 (59.8) |
|  | Filled SCQ, not valid score | 6 (0.05) | – | 1(0.009) |
| Â | Filled SCQ, valid score | 6876 (61.4) | 4997 (36.7) | 4420 (40.2) |
 Scoring SCQ and clinical evaluation | SCQ ≥ 15 | 153 (2.2) | 117 (2.3) | 120 (2.7) |
| Â | ASD already certified | 29 (18.9) | 30 (25.6) | 41 (34.2) |
| Â | Diagnostic assessment | 18 (11.8) | 37 (31.6) | 60 (50.0) |
| Â | ASD not registered with MoE | 7 (4.6) | 8 (6.8) | 4 (3.3) |
| Â | New NDD diagnosis | 3 (2.0) | 19 (16.2) | 19 (15.8) |
|  | 11 ≤ SCQ ≤ 14 | 358 (5.2) | 216 (4.3) | 239 (5.4) |
| Â | ASD already certified | 11 (3.1) | 2 (0.9) | 4 (1.7) |
| Â | 20% assessed | 64 (17.9) | 35 (16.2) | 36 (15.1) |
| Â | ASD not registered with MoE | 0 (0.0) | 0 (0.0) | 0 (0.0) |