TABLE 5. Median age at earliest known comprehensive evaluation and percentage of children evaluated by age 36 months among children aged 4 years with autism spectrum disorder — Early Autism and Developmental Disabilities Monitoring Network, seven sites, United States, 2010, 2012, and 2014.
| Site and record source | 2010 |
2012 |
2014 |
p value* | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Median age (months) | Total no. with ASD | No. (%) with evaluation by 36 months | Median age (months) | Total no. with ASD | No. (%) with evaluation by 36 months | Median age (months) | Total no. with ASD | No. (%) with evaluation by 36 months | ||
|
Health care and education
| ||||||||||
| Arizona |
34.0 |
95 |
58 (61.1) |
32.0 |
110 |
74 (67.3) |
32.5 |
110 |
76 (69.1) |
0.23 |
| Colorado |
—† |
—† |
—† |
—† |
—† |
—† |
34.0 |
93 |
75 (80.6) |
—§
|
| New Jersey |
26.0 |
307 |
235 (76.5) |
29.0 |
344 |
271 (78.8) |
34.0 |
403 |
269 (66.7) |
0.002 |
| North
Carolina |
—† |
—† |
—† |
—† |
—† |
—† |
23.0 |
198 |
164 (82.8) |
—§
|
| Utah |
32.0 |
107 |
75 (70.1) |
32.0 |
115 |
72 (62.6) |
—† |
—† |
—† |
—§
|
|
Health care only
| ||||||||||
| Missouri |
30.0 |
88 |
61 (69.3) |
37.0 |
80 |
39 (48.8) |
29.0 |
90 |
67 (74.4) |
0.46 |
| Wisconsin | 27.5 | 58 | 40 (69.0) | 29.0 | 109 | 80 (73.4) | 24.0 | 90 | 80 (88.9) | —¶ |
Abbreviation: ASD = autism spectrum disorder.
* Cochran-Armitage trend test for proportion with evaluation by age 36 months; p<0.05 indicates statistical significance.
† No data for site and surveillance year.
§ Trend not estimated for sites with <3 years of data.
¶ Trend not estimated because records were included from early intervention sources for 2014 but not earlier years.