BioMed Research International / 2018 / Article / Tab 1

Research Article

Hearing Loss Characteristics of Workers with Hypertension Exposed to Occupational Noise: A Cross-Sectional Study of 270,033 Participants

Table 1

Grading of hypertension DBP and SBP.

Blood pressure (mm Hg)Grade 1 (Stage 1 hypertension)Grade 2 (Stage 2 hypertension)Grade 3 (Stage 3 hypertension)Grade 4 (isolated systolic hypertension)

SBP140-159160-179≥180≥140
DBP90-99100-109≥110<90

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