NCD Watch

Hypertension: Key Facts and Preventive Actions

13 May 2025 (Tue)

An adult is said to have hypertension if systolic blood pressure is persistently higher than or equal to 140 millimeters of mercury (mmHg) and/or diastolic blood pressure is persistently higher than or equal to 90 mmHg. Maintaining both systolic blood pressure and diastolic blood pressure at optimal levels are important for the efficient function of vital organs and for overall health

Hypertension is a major public health issue because of its high prevalence with significant impact on population health. Among persons aged 15–84 in Hong Kong, the Population Health Survey (PHS) 2020-22 conducted by Department of Health (DH) showed that the prevalence of hypertension was 29.5%. The prevalence of hypertension increased steadily with age from 4.9% among those aged 15–24 to 57.4% among those aged 65-84.

Hypertension is a “silent killer” and often has no overt symptoms in the early stages. Many people with hypertension are unaware that they have the condition until complication develops (such as heart attack, stroke or kidney disease). Among persons aged 15–84 with hypertension, the PHS 2020-22 revealed that 41% of them (44.3% for males and 37.4% for females) were not aware of having raised blood pressure until attending the health examination provided under the survey.

While adopting a healthy lifestyle is essential for the prevention and control of hypertension, having regular blood pressure checks allows early detection and treatment of hypertension if indicated. The Hong Kong Reference Framework for Hypertension Care for Adults in Primary Care Settings recommends adults aged 18 or above to have their blood pressure checked at least once every two years. More frequent intervals may be required according to the blood pressure level, individual’s age, overall cardiovascular risk profile, and doctor’s advice.

The DH will continue step up efforts to increase public awareness about the importance of healthy living in the prevention and control of hypertension, as well as working in close partnership with various stakeholders to foster a healthy-enhancing environment. Members of the public are urged to maintain vigilance against hypertension, choosing to live in healthy ways for reducing the risk of developing hypertension.

Source: NCD Watch May 2025This link will open in a new window