Perceptions about body weight and weight reduction in Spain.

OBJECTIVE: To assess the more prevalent beliefs about body weight and the factors involved in weight changes in the Spanish adult population. DESIGN: A national survey was carried out according to an established protocol on Spanish subjects selected by a multistage procedure following a random route model, which was quota-controlled for several sociodemographic variables. This study was undertaken by the Spanish arm of a pan-European survey and was performed with a validated questionnaire. It contained questions to evaluate some aspects concerning the relationship between obesity, physical activity and health. We also estimated the proportion of self-reported overweight and obesity. SETTING: Spain. SUBJECTS: The sample included 1,000 subjects aged 15 years or older. RESULTS: Eleven per cent of the sample were obese (body mass index, BMI > 30 kg/m-2) and an additional 32% were overweight (BMI > 25 and < 30 kg/m-2). Obesity prevalence was higher among older individuals, those with lower education and socioeconomic levels, and among housewives and retired or unemployed people. Most Spanish people believed that fat intake (51%) and the amount of food consumption (44%) were the major factors involved in weight gain, while physical activity was less mentioned (12%). The method most frequently used to lose weight was diet (9%). Individuals from central and southern regions payed more attention to genetics (20-27%) and physical activity (12-20%) as determinants of weight gain than people living in the north or northwest regions (15-17% and 8-9%, respectively). Normal weight people participated more often in some physical activity during their leisure time. CONCLUSIONS: The Spanish population is not familiar with factors influencing weight gain. Health promotion strategies should emphasize the role of physical activity, especially among older individuals, retired or unemployed subjects, those from lower educational or socioeconomic levels and among people living in the north or northwest of Spain.

[The perceptions of the adult Spanish population of the factors determinative of health]. / Percepciones de la población adulta española sobre factores determinantes de la salud.

OBJECTIVE: To assess which are the most important perceived influential factors on health among the Spanish adult population. This may provide sufficient information to promote primary health care campaigns directed specifically to those that acknowledge that lifestyles are important in spite of not living healthy lifestyles themselves. DESIGN: Observational cross-sectional study. SETTING: Spain (Canary Islands not included). PARTICIPANTS: A representative sample of 1000 Spanish participants over 15 years old selected by a multistage procedure. INTERVENTION: Survey to evaluate the population choosing one of nine known health-related factors (smoking, food, alcohol intake, stress, physical activity, environment, body weight, support from family, genetics) as being one of the two most important factors influencing health through a validated questionnaire. MEASUREMENTS AND RESULTS: The chi-square test for linear trend was used to assess the influence of factors coded on an ordinal scale. The Pearson chi-square test was applied for categorical factors. Smoking was considered the most influential health-related factor by most participants (47.8%). Males, those from lower socioeconomic and educational levels; people living in the south of Spain, and rural regions; those married and individuals who had 3 or more children below 15 years, perceived smoking more often as one of the most important determinants of health. CONCLUSIONS: These data suggest that a large percentage of the Spanish adult population recognizes that life-styles are important determinants of health.