Table 3 Primary Exposures and Outcomes by ASD Affected or Unaffected status (N = 770)
Characteristic variable | ASD (n = 610) # (%) | Unaffected siblings (n = 160) # (%) | F or χ2; p |
|---|---|---|---|
Non-febrile seizures | |||
 Yes | 50 (8.2) | 4 (2.5) | χ2(1) = 6.25; 0.01 |
 No | 134 (91.8) | 156 (97.5) | |
Febrile seizures | |||
 Yes | 19 (3.1) | 5 (3.1) | χ2(1) = 0.0001; 0.99 |
 No | 591 (96.9) | 155 (96.9) | |
Type of non-febrile seizures | |||
 Complex partial | 9 (1.5) | 1 (0.6) | χ2a |
 Generalized/ Grand mal | 16 (2.6) | 0 (0.0) | |
 Absence/petit mal | 7 (1.1) | 1 (0.6) | |
 Other | 6 (1.0) | 2 (1.3) | |
 Unknown | 7 (1.1) | 0 (0.0) | |
 Multiple | 5 (0.8) | 0 (0.0) | |
 None | 560 (91.8) | 156 (97.5) | |
GI dysfunctions | |||
 Yes | 251 (42.5) | 20 (12.8) | χ2(2) = 45.33; <0.0001 |
 No | 340 (57.5) | 136 (87.2) | |
Type of GI dysfunctions | |||
 Gastroesophageal reflux | 12 (2.0) | 6 (3.8) | χ2(6) = 57.37; <0.0001 |
 Irritable bowel syndrome | 2 (0.3) | 2 (1.3) | |
 Chronic diarrhea | 66 (10.8) | 3 (1.9) | |
 Constipation | 86 (14.1) | 3 (1.9) | |
 Other | 33 (5.4) | 3 (1.9) | |
 Multiple | 52 (8.5) | 3 (1.9) | |
 None | 359 (58.9) | 140 (87.5) | |