Overweight, obesity, central adiposity and associated chronic diseases in cuban adults.

Introduction Prevalence of overweight and obesity is increasing worldwide in parallel with the growing burden of noncommunicable chronic diseases. According to the World Health Organization, in 2005 approximately 1.6 billion individuals aged ≥15 years were overweight and at least 400 million were obese; by 2015 these figures will almost double. Central distribution of adiposity has also been associated with higher rates of cardiovascular diseases and other conditions. Objective Determine the prevalence of overweight, obesity and central adiposity, and their association with noncommunicable chronic diseases and related lifestyle risk factors in Cuban adults. Methods The Second National Survey on Risk Factors and Chronic Diseases (ENFRENT II), conducted in 2000-2001, surveyed a representative sample of males and females aged ≥15 years using a stratified, multi-stage cluster sampling design. Data from a sub-sample of 19,519 individuals aged ≥20 years were analyzed and prevalence calculated for diabetes, hypertension, cardiovascular and cerebrovascular diseases, and for each of these variables in association with overweight, obesity and central distribution of adiposity, and with the presence of sedentary lifestyle, smoking, alcohol consumption, eating regular daily meals and daily breakfast. Results Estimated prevalence of overweight and obesity in the adult population was 30.8% (CI: 30.1-31.5) and 11.8% (CI: 11.2-12.4), respectively. Obesity prevalence was twice as high in women (15.4%; CI: 14.5-16.3) as in men (7.9%; CI: 7.3-8.6). Obesity was significantly more frequent in diabetics, hypertensives and people with heart disease, while central adiposity was significantly associated with a higher prevalence of diabetes mellitus, cardiovascular and cerebrovascular diseases, hypertension, obesity and overweight. Smoking and alcohol consumption were low among overweight and obese subjects, who exhibited a higher prevalence of irregular and inadequate eating patterns. Conclusions Prevalence of overweight, obesity and central adiposity, and comorbidity with diabetes mellitus, hypertension and heart disease, are growing public health problems in Cuba. A multi-sector strategy is needed to develop comprehensive food and nutrition policies and programs aimed at halting these trends, including interventions that encourage healthy eating patterns and regular physical activity in adults and children.

Smoking-attributable mortality in cuba.

Introduction Smoking is the main preventable cause of death worldwide. The World Health Organization estimates that smoking causes 5 million deaths annually, a figure that could double shortly if the present trend in tobacco product consumption continues. Objectives Estimate smoking-attributable mortality in the Cuban population and provide information needed to carry out effective public health actions. Methods This is a descriptive study using smoking prevalence and mortality data in Cuba for 1995 and 2007. Causes of death were grouped in three categories: malignant tumors, cardiovascular diseases and chronic respiratory diseases. Etiological fractions and attributable mortality were calculated by cause and sex. Results Of deaths recorded in 1995 and 2007, 15% and 18% of preventable deaths were attributed to smoking, respectively. In Cuba in 2007, smoking caused 86% of deaths from lung cancer, 78% of deaths from chronic obstructive pulmonary disease, 28% of deaths from ischemic heart disease, and 26% of deaths from cerebrovascular disease. Conclusions Smoking is responsible for high rates of preventable mortality in Cuba. There is willingness on the part of administrative and political authorities to discourage smoking, and more than half of smokers in Cuba wish to quit smoking. Given awareness that reducing smoking is the most effective means of decreasing preventable morbidity and mortality, the country is moving steadily toward concrete, sustainable steps leading to increased life expectancy and quality of life for the Cuban population.

[Factors associated with stages of behavior change in Cuban smokers]. / Factores asociados a etapas de cambio de comportamiento en fumadores cubanos.

OBJECTIVE: To describe the distribution of Cuban smokers in the first two stages of the process of behavior change (precontemplation (that is, no desire to quit smoking) and contemplation (thinking about quitting)), the characteristics of these smokers, and the relationship between these characteristics and some variables of interest. METHODS: The First National Survey of Risk Factors and Chronic Non-communicable Disease Prevention Activities was carried out in Cuba in 1996. As a part of that Survey, a probability sample was selected using three-stage clustering, with stratification of the primary units, which were the census districts in the 14 provinces and 169 municipalities that make up the country. The census districts were selected in proportion to their number of dwellings. A total of 4 835 smokers 15 years old or older were selected to answer a questionnaire on sociodemographic variables and smoking-related behaviors. The sociodemographic variables included age, sex, skin color, level of schooling completed, and work status (working, looking for work, retired, housewife, or student). The smoking-related behaviors included knowledge of tobacco's harmful effects on health, age when smoking began, number of cigarettes smoked daily, willingness to give up the habit, and the number of attempts made to quit smoking. The questionnaire information made it possible to place the smokers in one or the other of the two initial stages of smoking behavior change. The probability of being in the precontemplation stage was modeled through logistic regression. The standardized coefficients that the model produced were used to calculate the weight of the explanatory variables included in the model. To calculate the estimates and their errors, the SAS 6.12 and SUDAAN 7.5 statistical software packages were used, taking into account the complex design of the sample. The level of significance was set at 0.05. RESULTS: We found that 46.4% of the smokers surveyed were in the precontemplation stage, and 53.6% were in the contemplation stage. Women were more prepared to quit the habit than were men. The more formal the education that a person had, the stronger was the desire to quit smoking. Persons who were retired were the ones least likely to be considering giving up smoking. The probability of being in the precontemplation stage decreased with an increase in the age of beginning to smoke, the number of cigarettes smoked daily, and the number of attempts made to quit smoking. CONCLUSIONS: The proportion of Cuban smokers in the contemplation stage places the country in a favorable position for developing effective smoking prevention interventions. The majority of the factors identified (age when smoking began, number of cigarettes consumed daily, and number of attempts to give up the habit) can be modified through preventive actions. Identifying the stages in the process of change and the factors linked to them are necessary for designing and implementing effective smoking prevention and control programs.