Table 1.
Demographic characteristics, by sex and diagnostic status, among 356 offspring in the Autism Tooth Fairy Study.
| Characteristic | Boys (n = 257) | Girls (n = 99) | ||||||
|---|---|---|---|---|---|---|---|---|
| Cases | Cases | |||||||
| Controls (n = 54) |
Any ASD (n = 203) |
Autism (n = 140) |
Non-Regressive Autism (n = 86) |
Controls (n = 67) |
Any ASD (n = 32) |
Autism (n = 28) |
Non-Regressive Autism (n = 19) |
|
|
Birth year of child
(Mean (SD)) |
2001.3 (4.1) |
2001.4 (4.3) |
2001.5 (4.2) |
2001.5 (4.1) |
2002.2 (3.8) |
2001.8 (4.3) |
2001.9 (4.3) |
2001.4 (4.6) |
| Education of mother (n) | 54 | 202 | 139 | 86 | 67 | 32 | 28 | 19 |
| <High school (%) | 0 | 4 | 3 | 3 | 3 | 0 | 0 | 0 |
| High school graduate (%) | 13 | 5 | 8 | 9 | 4 | 9 | 7 | 5 |
| <4 yrs college (%) | 20 | 31 | 29 | 19 | 28 | 25 | 29 | 21 |
| ≥4 yrs college (%) | 67 | 60 | 60 | 69 | 64 | 66 | 64 | 74 |
| Family income (n) | 50 | 198 | 135 | 83 | 66 | 32 | 28 | 19 |
| <USD 25K (%) | 12 | 18 | 19 | 16 | 14 | 9 | 7 | 5 |
| USD 25K to <USD 50K (%) | 10 | 16 | 14 | 12 | 17 | 28 | 29 | 16 |
| USD 50K to <USD 100K (%) | 32 | 35 | 36 | 30 | 29 | 34 | 39 | 53 |
| USD 100K to <USD 200K (%) | 32 | 25 | 25 | 34 | 29 | 19 | 18 | 21 |
| ≥USD 200K (%) | 14 | 7 | 7 | 8 | 12 | 9 | 7 | 5 |
| Ethnicity of child (n) | 53 | 202 | 139 | 85 | 66 | 32 | 28 | 19 |
| Hispanic (%) | 25 | 16 | 15 | 13 | 32 | 9 | 7 | 5 |
| Non-Hispanic white (%) | 64 | 70 | 68 | 74 | 58 | 88 | 93 | 95 |
| Other/mixed (%) | 11 | 14 | 17 | 13 | 11 | 3 | 0 | 0 |
| Recruitment source (n) | 54 | 203 | 140 | 86 | 67 | 32 | 28 | 19 |
| IAN (%) | 69 | 74 | 73 | 72 | 60 | 87 | 89 | 89 |
| SA/STX (%) | 31 | 26 | 27 | 28 | 40 | 13 | 11 | 11 |
ASD = autism spectrum disorder; SD = standard deviation; IAN = Interactive Autism Network; SA/STX = San Antonio/South Texas; K = 1000.