Table 2.
Demographics table.
| Descriptive statistics | Effect of demographics on methylation | |||
|---|---|---|---|---|
| N (%) | Statistic | cg09322432-Probe 3 | cg15597984-Probe 5 | |
| Child’s Ethnicity | ANCOVA, F (value of p) | 3.791 (0.024) | 5.48 (0.005) | |
| Chinese | 237 (57.2) | Mean methylation (SD) | 0.902 (0.021) | 0.743 (0.031) |
| Malay | 108 (26.1) | 0.895 (0.027) | 0.737 (0.037) | |
| Indian | 56 (13.5) | 0.895 (0.018) | 0.726 (0.028) | |
| Missing | 13 (3.1) | |||
| Mean (SD) | Significant CpG site | cg17498424-Probe 6 | ||
| Age in years at recruitment | 30.9 (5.22) | Linear Regression, B (value of p) | −6.210 × 10−4(0.010) | |
| N (%) | Significant CpG site | cg07016288-Probe 2 | ||
| Monthly income of mothers SGD | ANCOVA, F (value of p) | 2.981 (0.019) | ||
| <$1,000 | 131 (31.6) | Mean methylation (SD) | 0.848 (0.032) | |
| $1,000–1,999 | 98 (23.7) | 0.845 (0.032) | ||
| $2,000–3,999 | 100 (24.2) | 0.843 (0.033) | ||
| $4,000–5,999 | 26 (6.28) | 0.856 (0.031) | ||
| ≥$6,000 | 7 (1.69) | 0.817 (0.030) | ||
| Not answered | 52 (12.6) | |||