Characteristics of infants in the treatment and control groups
|
Treatment group n = 46 |
Controls n = 40 | p value | |
| Boys/girls | 20/26 | 27/13 | 0.031 |
| Birth weight (g) | 3687 (405) | 3695 (571) | 0.943 |
| Length at birth (cm) | 50.5 (1.8) | 50.5 (2.3) | 0.988 |
| Weight at study (g) | 4735 (551) | 4884 (699) | 0.287 |
| Length at study (cm) | 56.3 (1.9) | 56.7 (2.4) | 0.469 |
| Head circumference at study (cm) | 38 (1.3) | 38.3 (1.5) | 0.429 |
| Duration of colic (wk) | 3.6 (1.5) | 4.3 (1.9) | 0.062 |
| Crying per day (h) | 4.9 (1.7) | 5.3 (2.6) | 0.402 |
| Consistent diurnal pattern of crying | 39 (88.6%) | 34 (85.0%) | 0.629 |
| Purely breast fed | 43 (93.5%) | 32 (80.0%) | 0.073 |
| Partly breast fed | 3 (6.5%) | 5 (12.5%) | 0.357 |
| Bottle fed (casein hydrolysed formula) | 0 (0.0%) | 3 (7.5%) | 0.083 |
| Previous treatment | |||
| Defoaming agent | 24 (52.2%) | 21 (52.5%) | 0.781 |
| Music/sound | 28 (60.9%) | 18 (45.0%) | 0.180 |
| Sucrose | 46 (100 %) | 40 (100 %) | |
| Normal vaginal delivery | 301-150 (75%) | 241-151(77.4%) | 0.815 |
| Pathological delivery | 101-150 (25%) | 71-151(22.6%) | 0.815 |
| Vacuum extraction | 01-150 (0.0%) | 31-151(9.7%) | 0.083 |
| Instrumental delivery | 51-150 (12.5%) | 11-151(3.2%) | 0.140 |
| Caesarean section | 51-150(12.5%) | 31-151(9.7%) | 0.710 |
| Siblings | 27 (58.7%) | 25 (62.5%) | 0.722 |
| Siblings with colic | 19 / 271-152 (70.4%) | 16 / 251-152 (64%) | 0.633 |
| Mother smokes | 5 (10.9%) | 9 (22.5%) | 0.157 |
| Father smokes | 13 (28.3%) | 10 (25.6%) | 0.789 |
| Single parent family | 6 (13%) | 3 (7.5%) | 0.400 |
| Maternal age (y) | 31.0 (5.6) | 31.1 (6.3) | 0.910 |
| Mother's education >12 y | 39 (84.8%) | 27 (67.5%) | 0.065 |
| Father's education >12 y | 31 (67.4%) | 22 (55.0%) | 0.246 |