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Trends in prevalences of behavioral risk factors: recent Hawaiian experience.

Recent time trends were studied for the prevalences of behavioral risk factors in Hawaii during the 5-year period from 1986 through 1990. The presence of linear time trend was analyzed by the multiple logistic regression method on weighted data, adjusting for confounding factors. The risk factors studied were seatbelt nonuse, lack of exercise, obesity, hypertension, smoking, acute drinking, chronic drinking, and driving while intoxicated. Seatbelt nonuse showed a significant decline, from 8.6% to 4.8%, with a mean annual decrease of 0.9 percentage point. Lack of exercise and obesity increased steadily, from 48.0% to 62.4% and from 16.7% to 21.6%, respectively, with respective annual mean increases of 3.3 and 1.4 percentage points.