Table 2.
Number and percentage of children and parents participating in examination modules at baseline and at first follow-up.
| Examination module | Participation | ||
|---|---|---|---|
| Baseline n (%) | First follow-up n (%) | ||
| Children | Blood pressure | 14,752 (90.9) |
10,563 (95.7) |
| Bioelectrical impedance analysis (fasting state) | 15,720 (96.9) |
10,795 (97.8) |
|
| Waist-to-hip ratio | 15,551 (95.8) |
10,731 (97.2) |
|
| Skinfold thickness (subscapularis and triceps) | 15,160 (93.4) |
10,567 (95.7) |
|
| Venous or capillary blood (fasting state) | 12,855 (79.2) |
8,528 (77.2) |
|
| Morning urine | 13,945 (85.9) |
8,845 (80.1) |
|
| Salivaa | 14,273 (88.0) |
188 (1.7) |
|
| Parents | General questionnaire (children parents) | 16,117 (99.3) |
10,539 (95.5) |
| Food frequency questionnaire | 15,199 (93.7) |
9,963 (90.2) |
|
| Medical history | 12,418 (76.5) |
8,978 (81.3) |
|
| 24-h dietary recall | 11,671 (71.9) |
5,520 (50.0) |
|
a
The collection of saliva at the first follow-up was restricted to children without a saliva sample at baseline. Therefore saliva was defined as being available at first follow-up if a sample was available at baseline or first follow-up.