Table 1.
Characteristics of the study population among US children aged 3–17 years, by cerebral palsy diagnosis
| Variables | Children without cerebral palsy (n, weighted %) | Children with cerebral palsy (n, weighted %) |
| No. of participants | 177 297 | 602 |
| Age, year | 9.99 (0.01) | 10.19 (0.23) |
| Sex, n (%) | ||
| Male | 91 280 (51.1) | 350 (57.6) |
| Female | 86 017 (48.9) | 252 (42.4) |
| Race/ethnicity, n (%) | ||
| Hispanic | 48 209 (20.6) | 140 (16.7) |
| Non-Hispanic white | 87 497 (57.3) | 325 (60.6) |
| Non-Hispanic black | 26 412 (14.1) | 102 (15.6) |
| Other | 15 179 (8.0) | 35 (7.1) |
| Family highest education level, n (%) | ||
| Less than high school | 39 159 (19.5) | 132 (18.9) |
| High school | 20 476 (11.5) | 61 (9.9) |
| College or higher | 116 741 (68.5) | 405 (70.8) |
| Missing | 921 (0.5) | 4 (0.4) |
| Ratio of family income to the federal poverty level, n (%) | ||
| <1.0 | 28 697 (16.5) | 105 (19.4) |
| 1.0–1.9 | 34 978 (19.7) | 155 (24.3) |
| 2.0–3.9 | 47 234 (26.8) | 149 (26.2) |
| >4.0 | 42 562 (24.3) | 121 (19.6) |
| Missing | 23 826 (12.6) | 72 (10.5) |
| Geographic region, n (%) | ||
| Northeast | 29 462 (17.3) | 109 (17.4) |
| Midwest | 36 451 (23.4) | 128 (24.3) |
| South | 64 159 (36.3) | 237 (38.3) |
| West | 47 225 (23.0) | 128 (20.0) |
| ASD, n (%) | ||
| No | 175 336 (98.9) | 566 (93.9) |
| Yes | 1961 (1.1) | 36 (6.1) |
| ADHD, n (%) | ||
| No | 163 705 (92.1) | 497 (84.1) |
| Yes | 13 592 (7.9) | 105 (15.9) |
Data are presented as weighted means and SEs in parentheses for continuous variables and frequencies and weighted percentages in parentheses for categorical variables.
ADHD, attention-deficit/hyperactivity disorder; ASD, autism spectrum disorder.