Table 2.
24-month total word score | Parent report, speech services at 24 months (N = 9,500) | Parent report, speech services at 48 months (N = 8,600) | Parent report, speech services at 60 months (N = 6,550) |
---|---|---|---|
0–5 | 28.4% | 44.4% | 31.2% |
6–10 | 10.2% | 16.2% | 13.3% |
11–15 | 8.1% | 10.4% | 10.2% |
16–20 | 4.1% | 8.0% | 5.6% |
21–25 | 2.3% | 3.2% | 5.4% |
26–30 | 1.4% | 2.3% | 2.0% |
31–35 | 0.8% | 1.9% | 1.8% |
36–40 | 0.4% | 1.1% | 1.1% |
41–45 | 0.9% | ||
46–50 |