What is the range of grade 1 hypertension?

Grade 1 hypertension is diagnosed as systolic blood pressure of 140-159mmHg and (or) diastolic blood pressure of 90-99mmHg.

Under normal circumstances, adults without antihypertensive drug treatment, systolic blood pressure ≥140 mmHg and (or) diastolic blood pressure ≥90 mmHg for three consecutive times, and the three measurement times are not in the same day, belonging to hypertension

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