RESUMEN
INTRODUCTION Systematic measurement of population physical activity levels is an important component of public health surveillance. OBJECTIVES Describe patterns of physical activity in the Cuban population aged 15-69 years and identify factors associated with regular physical activity. METHODS A descriptive cross-sectional study was conducted using a complex sampling design, representative of urban and rural areas, sex and age groups, including 7915 individuals. The International Physical Activity Questionnaire (short format) was applied. The population was classified as active, irregularly active and sedentary, according to sex, age, marital status, education, skin color, employment and perception of health risk related to physical inactivity or overweight. Percentages, odds ratios (OR) and 95% confidence intervals (CI) were calculated and a multinomial regression model was fitted with active persons as the reference category. RESULTS Approximately 71% of the population self-classified as active, 23% as sedentary and 5.9% as irregularly active. Women had a higher probability of being sedentary (OR 2.51, CI 2.12-2.98) and irregularly active (OR 2.56, CI 95% 1.87-3.49). The probability of being sedentary increased with age (OR 1.19, CI 1.12-1.26), and also with the condition of being a homemaker, retired, or unemployed. Perceiving overweight as a high risk to health reduced likelihood of inactivity (OR 0.49, CI 0.29-0.83). CONCLUSIONS Some 7 of 10 Cubans are physically active. The groups with the highest probability of inactivity and irregular activity and associated factors have been identified through national application (for the first time) of the International Physical Activity Questionnaire. The results should be taken into account for implementation of specialized strategies to promote systematic physical activity. KEYWORDS Physical activity, physical exercise, sedentary lifestyle, health behavior, risk factors, chronic disease, women's health, surveillance, Cuba.
