Table 1 Characteristics of the sample stratified by gender and age groups
Men + women | Preschool (study 1) | Primary school (study 2,3) | Secondary school (study 4, 5) | Adults (study 6, 7) | All age groups 1 |
|---|---|---|---|---|---|
N | 207 | 348 | 587 | 941 | 2083 |
Age (years) | Â | Â | Â | Â | Â |
 Mean (SD) | 4.5 (0.8) | 10.7 (1.0) | 13.6 (1.2) | 41.8 (11.2) | 17.7 (15.5) |
 Range | 3-6 | 8-13 | 11-16 | 19-64 | 3-64 |
BMI (kg/m 2 ) | 15.8 (1.4) | 17.7 (2.5) | 20.2 (3.6) | 24.3 (3.9) | 19.5 (4.4) |
Normal weight | 85% | 85% | 81% | 64% | 79% |
Overweight | 14% | 13% | 15% | 28% | 17% |
Obese | 1% | 2% | 4% | 8% | 4% |
Men | Preschool | Primary school | Secondary school | Adults | All men 1 |
N | 114 | 171 | 280 | 441 | 1006 |
Age (years) | Â | Â | Â | Â | Â |
 Mean (SD) | 4.5 (0.8) | 10.9 (1.0) | 13.7 (1.2) | 41.5 (11.0) | 17.1 (15.1) |
 Range | 3-6 | 8-13 | 11-16 | 20-63 | 3-63 |
BMI (kg/m 2 ) | 15.9 (1.3) | 17.6 (2.3) | 20.0 (3.5) | 25.3 (3.7) | 19.5 (4.6) |
Normal weight | 87% | 87% | 82% | 53% | 78% |
Overweight | 12% | 12% | 15% | 36% | 18% |
Obese | 1% | 1% | 3% | 11% | 4% |
Women | Preschool | Primary school | Secondary school | Adults | All women 1 |
N | 93 | 177 | 307 | 500 | 1077 |
Age (years) | Â | Â | Â | Â | Â |
 Mean (SD) | 4.4 (0.8) | 10.6 (1.1) | 13.5 (1.2) | 42.1 (11.4) | 18.3 (15.8) |
 Range | 3-5 | 8-13 | 11-16 | 19-64 | 3-64 |
BMI (kg/m 2 ) | 15.8 (1.5) | 17.8 (2.7) | 20.5 (3.7) | 23.3 (3.8) | 19.5 (4.2) |
Normal weight | 82% | 84% | 81% | 73% | 80% |
Overweight | 17% | 13% | 14% | 21% | 16% |
Obese | 1% | 3% | 5% | 6% | 4% |