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Table 6 Deep breathing test operating characteristics for SBP drop in patients not on beta-adrenergic blockers and with pre-test SBP ≥165 mmHg

From: Evaluation of the applicability of deep breathing test in the diagnosis of hypertension with white-coat effect in Chinese patients in primary care

Cut-off value

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

>  10 mmHg

90.9

36.4

74

67

>  20 mmHg

77.3

63.6

81

58

>  30 mmHg

40.9

90.9

90

43

>  40 mmHg

13.6

90.9

75

34

  1. SBP systolic blood pressure, PPV positive predictive value, NPV negative predictive value
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Clinical Hypertension

ISSN: 2056-5909

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