|
Characteristics of participants in the Autism Internet Research Survey 2005. |
||
| Cases |
Controls |
|
|
|
||
| For children aged 2–18 years: |
N = 861 |
N = 123 |
| Mean (SD) |
Mean (SD) |
|
| Age (years) |
7.8 (3.9) |
7.4 (4.5) |
| % |
% |
|
| No breastfeeding |
28 |
16 |
| Breastfeeding <2 months |
23 |
20 |
| Breastfeeding 2–6 months |
19 |
22 |
| Breastfeeding >6 months |
25 |
36 |
| Unknown |
5 |
6 |
| Parental report of regression in their child's development |
25 |
--- |
| For children aged 2–4 years: |
N = 150 |
N = 38 |
| Mean (SD) |
Mean (SD) |
|
| Age (years) |
3.2 (0.5) |
3.0 (0.6) |
| % |
% |
|
| Exclusive breastfeeding (no infant formula use) |
8 |
16 |
| Infant formula with DHA/ARA |
26 |
58 |
| Infant formula without DHA/ARA |
43 |
18 |
| Other infant formula (DHA/ARA content unknown) |
17 |
3 |
| Unknown |
6 |
5 |
| Parental report of regression in their child's development |
23 |
--- |
Schultz et al. International Breastfeeding Journal 2006 1:16 doi:10.1186/1746-4358-1-16 |
||