Sampling errors
Body Mass  of the child population, by sex and age group. Population aged 2 to 17 years old. Variation coefficient.
Units: percentages

;Underweight;Normal weight;Overweight;Obesity;
BOTH SEXES;
    Total;5.13;2.57;4.33;5.90;
    2 to 4 years;8.20;5.83;12.46;9.99;
    5 to 9 years old;9.43;4.51;6.74;8.21;
    10 to 14 years old;9.55;3.47;6.34;15.47;
    15 to 17 years old;20.02;7.32;14.38;36.46;
MALES;
    Total;7.50;3.50;5.65;7.95;
    2 to 4 years;11.62;8.03;17.82;13.40;
    5 to 9 years old;12.63;6.02;9.49;11.42;
    10 to 14 years old;13.71;4.80;8.06;19.07;
    15 to 17 years old;34.85;10.34;17.66;45.27;
FEMALES;
    Total;7.01;3.77;6.53;8.71;
    2 to 4 years;11.30;8.64;16.70;14.40;
    5 to 9 years old;14.25;6.77;9.73;11.65;
    10 to 14 years old;13.64;5.08;10.46;26.69;
    15 to 17 years old;23.89;10.44;23.76;61.28;
Notes:
1) Body Mass Index BMI = [weight(kg) / height(m) squared]
The symbol '.' shall be deemed as data which cannot be given due to an insufficient sample.
 The symbol '..' shall be deemed as data which are not collected for this classification in the table.
 The symbol '...' shall be deemed as an error of division by zero.
 The data corresponding to cells with fewer than 35 thousand persons must be considered with caution,  as they may be affected by a high degree of sampling error.
Source: Ministry of Public Health, Social Services and Equality and INE