Fewer heart attacks, more cancer cases, and better survival chances: The effectiveness of disease prevention
Medical progress is currently one of the strongest forces shaping populations and their health. For instance, an acute heart attack has evolved from being nearly always fatal in the past to having a much higher survival rate today. Researchers at the MPIDR and the Karolinska Institute in Stockholm, Sweden, have examined how disease prevention has affected various diseases in Sweden.
An analysis of Swedish disease registry data has revealed that while medical advancements have significantly reduced the incidence of heart attacks, strokes, and hip fractures, cancer cases have risen, altering the population's disease burden. Researchers from the Max Planck Institute for Demographic Research and the Karolinska Institute in Stockholm examined trends from birth cohorts born between 1904 and 1960.
For individuals aged 60 to 90, there was a decline in the incidence of heart attacks, strokes, and hip fractures, with the rate of heart attacks among 75-year-old women halving over two decades. However, the survival rates for these acute events improved, resulting in a decrease in their prevalence. In contrast, cancer incidence has been increasing, with the proportion of cancer diagnoses among those aged 80 to 89 rising from 17.3% in the 1912 birth cohort to 20.7% in the 1931 cohort.
Despite the growing number of cancer cases, survival rates for cancer patients have also improved due to better diagnostic and treatment methods. As a result, the prevalence of cancer in the population has increased. The study suggests that medical progress has been more effective in preventing severe acute events like heart attacks, strokes, and hip fractures compared to cancer care.
The findings indicate a shift in the disease burden, with a greater focus on long-term cancer care needs. Integrated, interdisciplinary approaches to care are essential to address these complex disease histories in a patient-centered manner. The researchers believe their findings can serve as a benchmark for other high-income countries with similar medical knowledge, preventive innovations, and healthcare systems.
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