Table 2.
Association of cohort characteristics with seizures.
| Characteristic | Seizures (N = 193) | No seizures (N = 1,414) | p-value** |
|---|---|---|---|
| N (% of total with seizures or no seizures) | |||
| Sex | <0.0001 | ||
| Male | 170 (88.1) | 1067 (75.4) | |
| Female | 23 (11.9) | 347 (24.6) | |
| Age at first visit* | 13.7 (8.7) | 11.6 (9.4) | 0.004 |
| Age at last visit* | 16.1 (8.9) | 13.5 (9.8) | <0.00001 |
| Race/ethnicity | |||
| White non-Hispanic | 139 (72.0) | 1061 (75.0) | 0.6 |
| Black non-Hispanic | 17 (8.8) | 106 (7.5) | |
| Asian | 9 (4.7) | 45 (3.2) | |
| Hispanic | 24 (12.4) | 184 (13.0) | |
| Other | 4 (2.1) | 18 (1.3) | |
| ASD diagnosis | <0.00001 | ||
| No | 80 (41.9) | 847 (60.5) | |
| Yes | 103 (53.9) | 526 (37.5) | |
| ASD by SCQ | 0.087 | ||
| No | 80 (54.1) | 641 (61.7) | |
| Yes | 68 (45.9) | 398 (38.3) | |
| Unknown | 8 (4.2) | 28 (2) | |
| ASD by SRS-2 | 0.008 | ||
| Absence of ASD | 12 (9.2) | 153 (16.4) | |
| Mild ASD | 48 (36.9) | 401 (43.1) | |
| Severe ASD | 70 (48) | 377 (40.5) | |
| Level of ID | <0.00001 | ||
| None | 5 (2.7) | 114 (3.0) | |
| Devel Delay | 11 (5.9) | 226 (16.7) | |
| Borderline | 7 (3.8) | 107 (7.9) | |
| Mild | 35 (18.8) | 322 (23.9) | |
| Moderate | 102 (54.8) | 493 (36.5) | |
| Severe | 25 (13.4) | 85 (6.3) | |
| Profound | 1 (0.5) | 3 (0.2) | |
| Sleep apnea | 0.001 | ||
| Currently | 7 (4.2) | 29 (2.5) | |
| Past | 7 (4.2) | 69 (6.0) | |
| No | 130 (78.8) | 1000 (86.4) | |
| Don't know | 21 (12.7) | 60 (5.2) | |
*
Values reported are mean (SD).
**
Significance (p-value) is reported for distribution of categories (chi-squared) in characteristic and indicates whether these are differently distributed between the group with seizures and those without.