Table 1 Population demographics
From: Co-occurring conditions in children with Down syndrome and autism: a retrospective study
| Â | All (N=562) | DS+ASD (N=72) | DS-only (N=490) |
|---|---|---|---|
Sex (n, %) | |||
 Male | 316 (56.2%) | 52 (72.2%) | 264 (53.9%) |
Diagnosis (n, %) | |||
 Trisomy 21 | 541 (96.3%) | 66 (91.7%) | 475 (96.9%) |
 Mosaic | 8 (1.4%) | 4 (5.6%) | 4 (0.8%) |
 Translocation | 10 (1.8%) | 1 (1.4%) | 9 (1.8%) |
 Unknown | 3 (0.5%) | 1 (1.4%) | 2 (0.5%) |
Age (years) | |||
 Median | 10 | 11 | 10 |
 IQR | 7.74 | 8.14 | 7.47 |
 Mean | 10.39 | 11.74 | 10.19 |
 Standard deviation | 5.04 | 5.06 | 5.02 |
Race/ethnicity (n, %) | |||
 White | 382 (68.0%) | 46 (63.9%) | 336 (68.6%) |
 Black | 42 (7.5%) | 5 (6.9%) | 37 (7.6%) |
 Asian | 20 (3.6%) | 2 (2.8%) | 18 (3.8%) |
 Native Alaskan/American Indian | 0 (0%) | 0 (0%) | 0 (0%) |
 Pacific Islander/Native Hawaiian | 1 (0.2%) | 1 (1.4%) | 0 (0%) |
 Multiple races reported | 1 (0.2%) | 0 (0%) | 1 (0.2%) |
 Other | 68 (12.1%) | 13 (18.1%) | 55 (11.2%) |
 No answer | 48 (8.5%) | 5 (6.9%) | 43 (8.8%) |
Primary language (n, %) | |||
 English | 514 (91.5%) | 69 (95.8%) | 445 (90.8%) |
 Spanish | 24 (4.3%) | 2 (2.8%) | 22 (4.5%) |
 Portuguese | 8 (1.4%) | 1 (1.4%) | 7 (1.4%) |
 Other | 14 (2.5%) | 0 (0%) | 13 (2.7%) |
 No answer | 3 (0.5%) | 0 (0%) | 3 (0.6%) |
Annual household income (n, %) | |||
 < $34,282 | 28 (5.0%) | 4 (5.6%) | 24 (4.5%) |
 $34,282–$54,850 | 217 (38.6%) | 29 (40.3%) | 188 (38.4%) |
 $54,850–$82,276 | 245 (43.6%) | 33 (45.8%) | 212 (43.3%) |
 >$82,276 | 70 (12.5%) | 6 (8.3%) | 64 (13.1%) |
 No answer | 2 (3.6%) | 0 (0%) | 2 (0.4%) |