Table 1.
Population characteristics for 8-year-old children by site, Autism and Developmental Disabilities Monitoring Network, surveillance years 2006, 2008, and 2010a
| Surveillance year
|
|||
|---|---|---|---|
| 2006 n (%) | 2008 n (%) | 2010 n (%) | |
| Total 8-year-old children | 121 843 (100) | 124 632 (100) | 131 352 (100) |
| Male | 62 062 (50.9) | 63 786 (51.2) | 66 604 (50.7) |
| Race and ethnicity | |||
| White non-Hispanic | 65 189 (53.5) | 65 094 (52.2) | 67 801 (51.6) |
| Black non-Hispanic | 40 053 (32.9) | 40 119 (32.2) | 40 420 (30.8) |
| Hispanic | 11 090 (9.1) | 13 899 (11.2) | 16 956 (12.9) |
| Other | 5511 (4.5) | 5520 (4.4) | 6175 (4.7) |
| Surveillance site | |||
| Alabamab | 21 101 (17.3) | 21 473 (17.2) | 21 833 (16.6) |
| Georgiac | 43 241 (35.5) | 45 248 (36.3) | 48 529 (37.0) |
| Missourid | 26 138 (21.5) | 25 301 (20.3) | 25 367 (19.3) |
| Wisconsine | 31 363 (25.7) | 32 610 (26.2) | 35 623 (27.1) |
a
Data were obtained from the National Center on Health Statistics’ bridged-race census population estimates for each surveillance year. For 2006 and 2008, they were from intercensal population estimates.
b
The Alabama site included nine counties in central Alabama.
c
The Georgia site included five counties of metropolitan Atlanta.
d
The Missouri site included five counties in metropolitan St. Louis.
e
The Wisconsin site included 10 counties in southeastern Wisconsin.