Health determiners. Relative figures Body Mass Index of the adult population by sex and social class based on the occupation of the reference person. Population aged 18 years old and over Units: percentages Total Underweight (BMI < 18.5 kg/m2) Normal weight (18.5 kg/m2 <= BMI < 25 kg/m2) Overweight (25 kg/m2 <= BMI < 30 kg/m2) Obesity (BMI >= 30 kg/m2) BOTH SEXES Total 100.00 2.17 44.16 36.65 17.03 I 100.00 2.82 52.57 35.68 8.93 II 100.00 2.60 52.68 32.94 11.78 III 100.00 1.76 47.70 35.89 14.65 IV 100.00 1.88 42.22 39.85 16.05 V 100.00 2.06 39.70 37.82 20.42 VI 100.00 2.17 41.41 34.86 21.56 No data recorded 100.00 4.06 38.59 33.61 23.74 MALES Total 100.00 0.92 35.93 45.14 18.01 I 100.00 0.40 39.72 48.50 11.38 II 100.00 0.40 44.63 43.60 11.38 III 100.00 0.33 35.28 46.79 17.60 IV 100.00 1.09 36.52 46.01 16.38 V 100.00 1.28 32.19 44.77 21.76 VI 100.00 0.86 36.91 41.62 20.62 No data recorded 100.00 5.17 39.30 34.17 21.35 FEMALES Total 100.00 3.41 52.40 28.14 16.04 I 100.00 5.58 67.25 21.04 6.13 II 100.00 4.57 59.87 23.41 12.14 III 100.00 3.08 59.21 25.79 11.92 IV 100.00 2.88 49.43 32.07 15.62 V 100.00 2.90 47.90 30.23 18.96 VI 100.00 3.20 44.95 29.55 22.30 No data recorded 100.00 3.57 38.28 33.36 24.78 Notes: 1) a) Socio-economic levels classification of the Spanish Society of Epidemiology: I. Directors and managers of establishments with 10 or more wage earners and professionals traditionally associated with university degrees II. Directors and managers of establishments with 10 or more wage earners, professionals traditionally associated with university degrees and other technical support professionals III. Intermediate occupations and self-employed workers IV. Supervisors and workers in skilled technical occupations IV. Skilled primary sector workers and other semi-skilled workers VI. Non-skilled workers 1) b) Body Mass Index = [weight(kg) / height(m) squared] The symbol '.' shall be deemed as data which cannot be given due to an insufficient sample. 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