Counties with the highest heart disease rates in Maryland
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- Prevalence of coronary heart disease: 4.8%
#24. Howard

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- Prevalence of coronary heart disease: 5.2%
#23. Montgomery

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- Prevalence of coronary heart disease: 5.2%
#22. Prince George's

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- Prevalence of coronary heart disease: 5.4%
#21. Charles

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- Prevalence of coronary heart disease: 5.6%
#20. Frederick

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- Prevalence of coronary heart disease: 5.7%
#19. Anne Arundel

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- Prevalence of coronary heart disease: 5.8%
#18. Calvert

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- Prevalence of coronary heart disease: 5.9%
#17. St. Mary's

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- Prevalence of coronary heart disease: 6.1%
#16. Baltimore County

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- Prevalence of coronary heart disease: 6.1%
#15. Carroll

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- Prevalence of coronary heart disease: 6.1%
#14. Baltimore City

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- Prevalence of coronary heart disease: 6.3%
#13. Harford

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- Prevalence of coronary heart disease: 6.6%
#12. Wicomico

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- Prevalence of coronary heart disease: 6.7%
#11. Cecil

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- Prevalence of coronary heart disease: 6.8%
#10. Queen Anne's

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- Prevalence of coronary heart disease: 7.3%
#9. Washington

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- Prevalence of coronary heart disease: 7.5%
#8. Somerset

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- Prevalence of coronary heart disease: 7.6%
#7. Caroline

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- Prevalence of coronary heart disease: 7.9%
#6. Allegany

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- Prevalence of coronary heart disease: 8.4%
#5. Kent

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- Prevalence of coronary heart disease: 8.5%
#4. Dorchester

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- Prevalence of coronary heart disease: 8.5%
#3. Talbot

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- Prevalence of coronary heart disease: 8.6%
#2. Worcester

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- Prevalence of coronary heart disease: 8.7%
#1. Garrett

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