| Main classes | Subclasses of the blood pressure level | Values (individuals) | Relationships between high and low BPL classes |
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Thing → person → blood pressure level | High blood pressure level range | (i) 80–120, (ii) 121–130, (iii) 131–139, (iv) 140–159, (v) 160–179, (vi) 180–above
| (i) 0–80 & 80–120 → optimal blood pressure, (ii) 81–85 & 121–130 → normal blood pressure, (iii) 86–90 & 131–139 → high-normal blood pressure, (iv) 91–99 & 140–159 → degree I hypertension, (v) 100–109 & 160–179 → degree II hypertension, (vi) 110–180 & 180–above → degree III hypertension | Low blood pressure level range | (i) 0–80, (ii) 81–85, (iii) 86–90, (iv) 91–99, (v) 100–109, (vi) 110–180,
| Blood pressure level value | (i) Optimal blood pressure, (ii) normal blood pressure, (iii) high-normal blood pressure, (iv) degree I hypertension, (v) degree II hypertension, (vi) degree III hypertension |
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