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Figure 3 Seasonal mortality variation by age at death. At younger ages, seasonal changes have little effect on mortality from cardiovascular diseases. However, seasonal variations are more pronounced with increasing age. Among those over 85 years old, there were 15.8% more AMI and 19.3% more stroke deaths in the winter than in the summer. The slope for this trend was significant at p < 0.005 for AMI and p < 0.005 for stroke.
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