Table 2.
The standards of BHS.
| Cumulative error percentage | ||||
|---|---|---|---|---|
| 5 mmHg | 10 mmHg | 15 mmHg | ||
| BHS | Grade A | 60% | 85% | 95% |
| Grade B | 50% | 75% | 90% | |
| Grade C | 40% | 65% | 85% | |
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