Hypertension is quite common in Japan, although its prevalence has decreased somewhat in recent years. Here are some key points to consider:
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- Overall prevalence: Approximately 43 million people in Japan have hypertension, which represents roughly 30% of men and 20% of women aged 20 or more.
- Age-specific differences: The prevalence increases significantly with age, affecting over 60% of men and 45% of women aged 50 and above.
- Decreasing trend: There has been a steady decline in average blood pressure over the past 50 years, particularly for systolic pressure.
- Control rates: Despite the decreasing prevalence, treatment and control rates remain low, with only around 50% of hypertensive individuals being treated and only 25% achieving optimal blood pressure control.
- Cardiovascular burden: Despite lower overall cardiovascular disease rates compared to other developed countries, Japan still faces a high burden due to hypertension, with stroke being a major concern.
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Additional factors:
- Lifestyle: Dietary factors like high salt intake and lack of physical activity are considered major contributors to hypertension in Japan.
- Genetics: Certain genetic predispositions might also play a role.
Overall, while the prevalence of hypertension in Japan has shown some improvement, it remains a significant public health concern with high individual and national costs. Ongoing efforts are needed to improve awareness, prevention, and control of this condition.
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