Table 1 Participant characteristics by intervention and control groups
| Â | Intervention | Control | ||||||
|---|---|---|---|---|---|---|---|---|
| Â | Full-time employment | Part-time employment | Not in employment | Information not provided | Full-time employment | Part-time employment | Not in employment | Information not provided |
Mother’s employment | 3 (50.00) | 2 (33.33) | 0 (–) | 1 (16.67) | 2 (33.33) | 2 (33.33) | 2 (33.33) | 0 (–) |
Father’s employment | 4 (66.67) | 1 (16.67) | 0 (–) | 1 (16.67) | 4 (66.67) | 0 (–) | 1 (16.67) | 1 (16.67) |
| Â | Degree | A-level | GCSEs | Information not provided | Degree | A-level | GCSEs | Information not provided |
Highest mother’s educational attainment | 5 (83.33) | 0 (–) | 0 (–) | 1 (16.67) | 3 (50.00) | 1 (16.67) | 1 (16.67) | 1 (16.67) |
| Â | Females | Males | Total | Â | Females | Males | Total | Â |
Infant’s sex | 2 (33.33) | 4 (66.67) | 6 |  | 2 (33.33) | 4 (66.67) | 6 |  |
| Â | Mean | SD | Total | Â | Mean | SD | Total | Â |
Gestational age (weeks) | 29.2 | 1.09 | 5 | Â | 30 | 1.09 | 6 | Â |
Birth weight (g) | 1313.25 | 338.46 | 5 | Â | 1378.60 | 332.13 | 6 | Â |
Days in NICU | 57.6 | 20.95 | 5 | Â | 69.8 | 62.83 | 5 | Â |
APGAR (5 min) | 4.33 | 4.16 | 3 |  | 8.5 | 0.71 | 2 |  |
Age (months): pre-test | 11.90 | 0.79 | 5 | Â | 13.04 | 1.21 | 6 | Â |
Age (months): post-test | 12.95 | 0.78 | 5 | Â | 14.43 | 1.01 | 5 | Â |
Mullen cognitive T scores at pre-test | 94.40 | 11.46 | 5 | Â | 92.67 | 14.85 | 6 | Â |