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Table 3 Two-By-Two Tables And BpTRU Predictive Characteristics For Achievement Of ABPM Systolic Target

From: The BpTRU automatic blood pressure monitor compared to 24 hour ambulatory blood pressure monitoring in the assessment of blood pressure in patients with hypertension

   Systolic Target Achieved on ABPM (<135 mmHG mean daytime blood pressure)  
   Yes NO  
< 140 mmHG on BpTRU Yes 131 137 Sens = 80%; Spec = 55% PPV = 49%; NPV = 84%
  No 32 170  
< 135 mmHG on BpTRU Yes 111 101 Sens = 68%; Spec = 67% PPV = 52%; NPV = 80%
  No 52 206  
< 130 mmHG on BpTRU Yes 86 59 Sens = 53%; Spec = 81% PPV = 59%; NPV = 76%
  No 77 248  
< 125 mmHG on BpTRU Yes 62 31 Sens = 39%; Spec = 90% PPV = 67%; NPV = 73%
  No 101 276  
< 120 mmHG on BpTRU Yes 42 12 Sens = 26%; Spec = 96% PPV = 78%; NPV = 71%
  No 121 295