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: In the context of the aging process, a key issue i to assess whether strategies to prevent chronic diseases may contribu te to the increase in years lived in good health among elderly individuals. Objective: To evaluate whether elimination of certain chronic diseases can lead to the compres sion of morbidity, in the elderly. Methods: Analytical cross-sectional survey, based on offic ial data for the city of São Paulo, in 2000, and data obtained from the SABE stu dy. Sullivan’s method was used for the calculation of disability-free life expecta ncy (DFLE). Cause-deleted disability prevalence was estimated using multiple logistic re gression model. Cause-deleted probabilities of dying were derived with the causeelimination life-table technique, considering the independence of the causes of base d on the approach proposed by Nusselder and co-workers. Results: The greatest gains in DFLE, with the elimination of chronic diseases, occurred in women, leading to a process of absolute compression of morbidity. Among individuals of a more advanced age, gains in DFLE occurred due to a relative compression of morbidity process. Among men aged 75 years, all diseases eliminated, except heart disease and hyper tension, led to a process of absolute expansion of morbidity, but simultaneously , to a relative compression of morbidity. If eliminated, heart disease was the con dition that would most lead to the compression of morbidity in both genders. Conclusion: The elimination of chronic diseases in the elderly population could lead to th e compression of morbidity in men and women at both 60 years of age and in 75 years o f age or older.

O efeito da eliminação de doenças crônicas na população idosa: a compressão e a expansão da morbidade