| Missing: total | Total | Missing | Intervention group (n = 230) | Missing | Control group (n = 234) |
---|---|---|---|---|---|---|
 | Range [Min, Max] |  | Range [Min, Max] |  | Range [Min, Max] | |
Mother’s age | 36 | 31.90 (5.01) | 13 | 31.98 (4.85) | 23 | 31.82 (5.18) |
 | [17, 49] |  | [17, 49] |  | [17, 43] | |
Father’s age | 38 | 33.98 (5.79) | 14 | 34.12 (5.99) | 24 | 33.84 (5.61) |
 | [18, 54] |  | [18, 54] |  | [21, 54] | |
No sibling | Â | 236 | Â | 117 | Â | 119 |
First sibling | Â | Â | Â | Â | Â | Â |
number | Â | Â | Â | 113 | Â | 115 |
 Sex (male/female) |  |  | 1 | 60/53 | 2 | 54/58 |
 Age |  | 4.34 (3.27) |  | 4.77 (3.53) |  | 3.90 (2.93) |
 | [0, 20] |  | [1, 20] |  | [0, 18] | |
Second sibling | Â | Â | Â | Â | Â | Â |
number | Â | Â | 25 | 34 | 34 | 25 |
Sex (male/female) | 59 | Â | 25 | 18/16 | 34 | 11/14 |
 Age |  | 4.68 (3.19) |  | 4.76 (3.53) |  | 4.56 (2.71) |
 | [2, 13] |  | [2, 13] |  | [2, 11] | |
Third sibling | Â | Â | Â | Â | Â | Â |
number | Â | 6 | Â | 3 | Â | 3 |
Sex (male/female) | Â | 6/0 | Â | 3/0 | Â | 3/0 |
 Age |  | 6.00 (3.89) |  | 6.60 (4.34) |  | 5.00 (3.61) |
 | [3, 11] |  | [3, 11] |  | [3, 9] | |
Fourth sibling | Â | Â | Â | Â | Â | Â |
number | Â | 4 | 0 | 3 | 0 | 1 |
Sex(male/female) | Â | Â | Â | 2/1 | Â | 0/1 |
 Age |  | 11.0 (5.00) |  | 13.5 (7.50) |  | 6.00 (0.00) |
 | [6, 21] |  | [6, 21] |  | [6] | |
Method of birth | Â | Â | 4 | Â | 3 | Â |
Spontaneous vaginal birth | Â | Â | Â | 181 | Â | 195 |
Instrumental vaginal birth | Â | Â | Â | 6 | Â | 5 |
Cesarean section | Â | Â | Â | 39 | Â | 31 |
Delivery week | Â | 39.12 (1.35) | Â | 39.12 (1.33) | Â | 39.13 (1.38) |
 | [32, 42] |  |  |  |  | |
Birth weight | Â | 2916.87 (737.59) | Â | 3046.56 (387.68) | Â | 2773.57 (971.11) |
 | [1745, 4148] |  | [1874, 4148] |  | [1745, 3890] |