Table 1.
Demographics.
| M (SD) or N (%) | ||
|---|---|---|
| Males (N = 123) | Females (N = 52) | |
| Age (years) | 21.9 (12.4) | 21.4 (14.1) |
| FMRP (pico molar)* | 1.5 (3.0) | 21.5 (7.7) |
| Race | ||
| Asian-American/Pacific Islander | 1 (0.8%) | 2 (3.9%) |
| Black | 3 (2.4%) | 1 (1.9%) |
| Multiracial | 1 (0.8%) | 0 (0%) |
| White | 118 (95.9%) | 49 (94.2%) |
| Ethnicity | ||
| Hispanic or Latino | 6 (5.0%) | 2 (3.8%) |
| Non-Hispanic or Latino | 115 (95.0%) | 50 (96.2%) |
| Caregiver 1 Highest Education | ||
| High school graduate | 12 (9.8%) | 2 (3.8%) |
| Some college | 23 (18.7%) | 6 (11.5%) |
| College | 29 (23.6%) | 15 (28.8%) |
| Postgraduate | 26 (21.1%) | 15 (28.8%) |
| Missing data | 33 (26.8%) | 14 (26.9%) |
| Caregiver 2 Highest Education | ||
| High school graduate | 12 (9.8%) | 4 (7.7%) |
| Some college | 17 (13.8%) | 8 (15.4%) |
| College | 29 (23.6%) | 14 (26.9%) |
| Postgraduate | 23 (18.7%) | 10 (19.2%) |
| Missing data | 42 (34.1%) | 16 (30.8%) |
| Household Income | ||
| ≤ $20,000 | 7 (5.7%) | 5 (9.6%) |
| $20,001 - $40,000 | 5 (4.1%) | 1 (1.9%) |
| $40,001 - $60,000 | 5 (4.1%) | 4 (7.7%) |
| $60,001 - $90,000 | 19 (15.4%) | 8 (15.4%) |
| ≥ $90,001 | 47 (38.2%) | 21 (40.4%) |
| Missing data | 40 (32.5%) | 13 (25.0%) |
| Stanford-Binet 5 | ||
| Full-Scale Deviation IQ* | 41 (21) | 78 (18) |
| Verbal Deviation IQ* | 41 (21) | 79 (18) |
| Nonverbal Deviation IQ* | 41 (23) | 76 (21) |
| Vineland-3 | ||
| Adaptive Behavior Composite* | 45 (19) | 81 (16) |
| Communication* | 37 (19) | 77 (22) |
| Daily Living Skills* | 48 (21) | 85 (15) |
| Socialization* | 49 (22) | 85 (17) |
| COI | ||
| Overall | 66 (26) | 66 (26) |
| Social and economic | 64 (27) | 64 (27) |
| Health and environment | 63 (24) | 63 (25) |
| Education | 68 (26) | 68 (25) |
Caregiver 1 and Caregiver 2 labels reflect the primary and secondary caregiver (e.g., mother and father, mother and grandparent); For participants represented across multiple visits, only values for their most recent visit are reported for this table. * Denotes males vs. female comparison significant at p <.05; Abbreviations: M, mean; SD, standard deviation; N, sample size; FMRP, fragile X messenger ribonucleoprotein; COI, Child Opportunity Index 3.0.