Group differences for infant and maternal outcomes*
| Group | F | p value | ||
|---|---|---|---|---|
| Colic | Comparison | |||
| *Values are mean (95% CI) unless otherwise stated. | ||||
| †Diaries are based on average of behaviours across three 24 hour days; hour counts are mutually exclusive categories. | ||||
| ‡Feeding interactions are based on videotaped observations. | ||||
| §Higher scores indicate greater parenting stress. | ||||
| Colic Symptom Checklist | 4.5 (4.1–4.8) | 0.79 (0.22–1.4) | 116.27 | 0.0001 |
| Clinical feeding evaluations, n (%) | χ2 | |||
| Presence of disorganised feeding | 8 (42) | 2 (8) | 6.78 | 0.009 |
| Overall disorganised feeding pattern | 3 (15) | 0 (0) | 4.07 | 0.04 |
| Rhythmic nutritive sucking | 10 (53) | 23 (96) | 11.09 | 0.001 |
| Rhythmic non-nutritive sucking | 13 (77) | 24 (100) | 6.25 | 0.01 |
| Reflux problems | F | |||
| Reflux episodes by ultrasound | 3.1 (2.3–3.9) | 2.1 (1.5–2.7) | 4.15 | 0.049 |
| I-GERQ | 11.7 (10.3–13.1) | 5.1 (3.1–7.1) | 28.36 | 0.0001 |
| I-GERQ clinic cut-offs, n (%) | χ2 | |||
| >7 | 17 (89) | 5 (21) | 20.91 | |
| ⩽7 | 2 (11) | 19 (79) | 0.0001 | |
| Behavioural diaries† | F | |||
| Hours crying | 4.8 (3.3–6.3) | 2.5 (1.9–3.1) | 9.99 | 0.003 |
| Hours sleeping | 12.4 (11.1–13.7) | 12.9 (12.1–13.7) | 0.45 | 0.51 |
| Hours awake (but not crying or feeding) | 3.3 (2.3–4.3) | 5.3 (4.8–5.9) | 14.01 | 0.001 |
| Hours feeding | 3.5 (2.9–4.3) | 3.3 (2.7–3.7) | 1.25 | 0.27 |
| Number of feeding discomfort episodes | 3.7 (2.8–4.7) | 1.7 (.97–2.5) | 12.24 | 0.001 |
| Mother-infant feeding interactions‡ | ||||
| Maternal responsiveness | 41.1 (37.7–44.6) | 42.7 (38.9–46.5) | 0.37 | 0.54 |
| Infant responsiveness | 12.8 (10.9–14.6) | 16.4 (14.2–18.6) | 6.63 | 0.01 |
| Parental functioning§ | ||||
| Parenting stress index | 76.7 (66.4–87.1) | 61.5 (53.2–69.9) | 5.87 | 0.02 |