Table 2 Demographic characteristics of the EMA study population by study phase and diagnostic group
Phase 1 | Phase 2 | |||||
|---|---|---|---|---|---|---|
ASD N = 84 | ID N = 49 | GP N = 160 | ASD N = 545 | ID N = 181 | GP N = 439 | |
Maternal age, mean (std) | 30.9 (5.2) | 28.3 (5.2) | 28.2 (5.5) | 29.9 (5.6) | 27.2 (6.3) | 28.7 (5.4) |
Paternal age, mean (std) | 34.0 (6.3) | 33.0 (7.9) | 31.0 (6.4) | 35.7 (14.6) | 36.9 (21.2) | 34.0 (14.2) |
Child gestational age in days, mean (std) | 272.1 (18.5) | 266.0 (27.9) | 271.1 (14.2) | 274.3 (27.1) | 268.2 (30.2) | 279.0 (36.1) |
Child sex (%) | ||||||
Male | 87% | 59% | 88% | 82% | 57% | 83% |
Female | 13% | 41% | 12% | 18% | 43% | 17% |
Multiparous (%) | 50% | 67% | 58% | 55% | 66% | 62% |
Maternal birth place (%) | ||||||
US | 54% | 33% | 45% | 50% | 44% | 48% |
Mexico | 11% | 45% | 36% | 24% | 46% | 31% |
Other | 36% | 22% | 19% | 26% | 10% | 21% |
Maternal race/ethnicity (%) | ||||||
Non-Hispanic White | 44% | 18% | 34% | 35% | 18% | 33% |
Asian | 23% | 18% | 18% | 15% | 5% | 11% |
Black, Pacific Islander, Other | 7% | 6% | 3% | 9% | 7% | 8% |
Hispanic | 24% | 57% | 46% | 40% | 70% | 47% |
Missing | 2% | 0% | 0% | 1% | 0.6% | 0.7% |
Maternal education (%) | ||||||
Less than high school | 8% | 47% | 31% | 18% | 42% | 24% |
High school | 18% | 18% | 25% | 22% | 28% | 27% |
Some college/college degree | 48% | 27% | 29% | 41% | 23% | 34% |
Post-graduate | 25% | 8% | 16% | 18% | 6% | 13% |
Missing | 1% | 0% | 0% | 1.5% | 1% | 1% |
Intellectual disability (%)a | ||||||
Yes | 40% | 100% | 0% | 52% | 100% | 0% |
No | 36% | 41% | ||||
Unknown | 24% | 7% | ||||