| Social and demographic characteristics |
Cases (57) |
Control A Group (-104) |
Control B Group (305) |
| N (%) |
N (%) |
p |
N (%) |
P |
| Age (months) (Median±SD) |
10 ± 6.30 |
15 ± 10.18 |
0.12 |
12 ± 9.78 |
0.36 |
| Sex (male) |
35 (61.4%) |
69 (66.3%) |
0.53 |
172 (56.4%) |
0.66 |
| Prematurity |
4 (7.0%) |
15 (14.4%) |
0.16 |
41 (13.4%) |
0.17 |
| Breastfeeding |
29 (50.9%) |
46 (44.2%) |
0.41 |
119 (39.0%) |
0.09 |
| Siblings |
28 (49.1%) |
45 (43.3%) |
0.47 |
139 (45.6%) |
0.62 |
| Country of origin |
| Spanish |
48 (84.2%) |
85 (81.8%) |
- |
273 (89.5%) |
- |
| Foreign |
9 (15.8%) |
19 (18.2%) |
0.69 |
32 (10.5%) |
0.25 |
|
