Details of variables collected at baseline and each follow-up phase
| Baseline (pregnancy, n=449) | 2 years (n=324) | 3 years (n=324) | 5 years (n=299) | 7 years (ongoing) | |
| Oral health-related variables | |||||
| Dental examinations (child dental caries, gingivitis, trauma) | ✓ | ✓ | ✓ | ✓ | |
| Dental treatment needs (mother and child) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Oral health-related behaviours (oral hygiene habits) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Oral health self-efficacy (mother) | ✓ | ✓ | ✓ | ✓ | |
| Oral health literacy (mother) | ✓ | ✓ | ✓ | ||
| Knowledge of children’s oral health (mother) | ✓ | ✓ | ✓ | ✓ | |
| Oral health fatalism (mother and child) | ✓ | ✓ | ✓ | ✓ | |
| Dental perceptions | ✓ | ||||
| Oral health-related quality of life (mother and child) | ✓ | ✓ | ✓ | ✓ | ✓ |
| General health | |||||
| Anthropometric measurements (height weight, arm circumference, blood pressure) (child) | ✓ | ✓ | ✓ | ✓ | |
| General health conditions and hospitalisations (child) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Health-related behaviours (smoking, alcohol intake) (mother) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Physical activity (child) | ✓ | ✓ | |||
| Self-rated general and oral health (mother and child) | ✓ | ✓ | ✓ | ✓ | ✓ |
| 24-hour dietary recalls (child) | ✓ | ||||
| Breastfeeding habits (child) | ✓ | ||||
| Other dietary-related habits (mother and child) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Socioeconomic and psychosocial factors | |||||
| Income, education, socioeconomic hardship, employment (mother) | ✓ | ✓ | ✓ | ✓ | ✓ |
| Experience of racism (mother) | ✓ | ✓ | ✓ | ||
| Cultural identity (mother) | ✓ | ✓ | |||
| Self-stem (child) | ✓ | ||||
| Social support and sense of self-control (mother) | ✓ | ||||
| Family functioning and home environment | |||||
| Parental functioning and home environment (mother and child) | ✓ | ✓ | ✓ | ||
| Time-use diaries (child) | ✓ | ||||
| Child development | |||||
| Cognitive outcomes (child) | ✓ | ✓ | |||
| Social and emotional well-being (child) | ✓ | ✓ | |||