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) |
| | SBP | 140-159 | 160-179 | ≥180 | ≥140 | | DBP | 90-99 | 100-109 | ≥110 | <90 |
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