Characteristics of the 19 participating infants presented as absolute figures and mean (SD)
| Boys/girls | 13/6 |
|---|---|
| Birth weight (g) | 3502 (570) |
| Length at birth (cm) | 49.1 (4.2) |
| Gestational age (weeks) | 39.4 (2.1) |
| Age at study (weeks) | 7.3 (3.4) |
| Weight at study (g) | 4950 (825) |
| Weight centile at study | 47 (30) |
| Head circumference at study (cm) | 39.0 (1.7) |
| Head circumference centile at study | 48 (26) |
| Duration of colic (weeks) | 5.2 (3.0) |
| Crying per day (hours) | 5.7 (2.6) |
| Consistent diurnal pattern of crying | 18 |
| Crying only afternoon/evenings | 18 |
| Consoled in car | 18 |
| Purely breast fed | 17 |
| Partly breast fed | 2 |
| Previous treatment | 19 |
| Defoaming agents | 19 |
| Mother discontinued cows’ milk | 15 |
| Music/sound | 15 |
| Chiropractor | 9 |