TABLE 1.
Clinical characteristics of subjects in the HELENA study
| Parameters | Whole Population | Blood Samples | P |
| N (n girls) | 3,528 (1845) | 1,155 (603) | — |
| Age (years) | 14.7 (1.2) | 14.7 (1.4) | 0.20 |
| BMI (kg/m2) | 21.3 (3.6) | 21.3 (3.8) | 0.52 |
| Waist (cm) | 71.9 (8.7) | 71.9 (8.3) | 0.61 |
| Height (cm) | 165.8 (9.1) | 165.0 (9.6) | 0.01 |
| Waist-to-height ratio | 0.43 (0.05) | 0.44 (0.05) | 0.34 |
| Fasting glucose (mmol/l) | — | 5.0 (0.4) | — |
| Fasting insulin (μIU/ml) | — | 10.26 (7.7) | — |
| HOMA-IR | — | 2.19 (1.5) | — |
| TGs (mmol/l) | — | 0.79 (0.4) | — |
| Cholesterol (mmol/l) | — | 4.16 (0.7) | — |
| HDL-cholesterol (mmol/l) | — | 1.43 (0.3) | — |
| LDL-cholesterol (mmol/l) | — | 2.45 (0.6) | — |
| Total n-3 LC-PUFA (%) | — | 3.57 (1.1) | — |
| ALA (%) | — | 0.14 (0.1) | — |
| EPA (%) | — | 0.49 (0.3) | — |
| DHA (%) | — | 2.93 (0.9) | — |
| Total n-6 LC-PUFA (%) | — | 31.71 (2.5) | — |
| LA (%) | — | 22.07 (2.6) | — |
| ARA (%) | — | 9.67 (1.6) | — |
Data are mean (SD).