Table 1 Gender and median age difference between the ASD child and his/her sibling
From: Autism spectrum disorder and low vitamin D at birth: a sibling control study
| Â | Gothenburg catchment area group (47 sibling pairs) | Stockholm Somali group (11 sibling pairs) | Total (58 sibling pairs) |
|---|---|---|---|
Gender in ASD group: M/F (% males) | 42/5 (89%) | 10/1 (91%) | 52/6 (90%) |
Gender in sibling group: M/F (% males) | 18/28 (39%) | 5/6 (45%) | 23/34 (40%) |
Age relation in sibling pairs: n; median difference, years (1st - 3rd quartiles) | |||
ASD sibling older | 14; 1.8 (1.2-2.1) | 7; 3.5 (2.3-4.8) | 21; 1.8 (1.5-2.8) |
ASD sibling younger | 32; 2.4 (1.8-4.2) | 4; 2.5 (1.8-3.6) | 36; 2.4 (1.8-4.1) |
Twins (dizygotic) | 1; 0.0 (0.0) | - | 1; 0.0 (0.0) |