Research Article
A Novel Neural Network Model for Blood Pressure Estimation Using Photoplethesmography without Electrocardiogram
Table 1
Classification of hypertension in adults (age > 18 years).
| Blood pressure classification | BP (mmHg) | Systolic | Diastolic |
| Normal | <120 | And <80 | Prehypertension | 120–139 | Or 80–89 | Stage 1 hypertension | 140–159 | Or 90–99 | Stage 2 hypertension | ≥160 | Or ≥100 |
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