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The decline of stroke mortality continued through the 1970s and 1980s, whereas morbidity remained constant and possibly even increased.Mortality and morbidity rates were similar in both sexes,higher in blacks,and lower in other(primarily Asian)Americans.There were inverse correlation between death rates and socioeconomic status.which was particularly marked in blacks.Temporal decline occurred in all strata.The observed decrease in stroke mortality rates most probably from an improved survival rather than from a decline in incidence.The abundance of newer drugs and screening programs may not have affected the overall morbidity of stroke,possibly because of inefficient treatment regimens. |
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