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Table 2 Agreement levels between different methods for all systolic blood pressure measurements.

From: Association between routine and standardized blood pressure measurements and left ventricular hypertrophy among patients on hemodialysis

  

Baseline measurements

Cumulative measurements

  

Standard

Pre-dialysis

Post-dialysis

Intra-dialysis

Pre-dialysis

Post-dialysis

Intra-dialysis

 

Standardized

       
  

-5.8 (-13.9, 2.2)

      

Baseline

Pre- dialysis

(-54.5, 42.9)

---

---

---

---

---

---

  

0.35 (0.05, 0.59)

      
  

1.0 (-5.3, 7.3)

6.8 (0.4, 13.2)

     
 

Post -dialysis

(-37.0, 39.0)

(-31.9, 45.5)

---

---

---

---

---

  

0.58 (0.33, 0.75)

0.52 (0.27, 0.71)

     
  

-1.1 (-7.0, 4.7)

4.6 (-1.8, 11.0)

-2.2 (-5.5, 1.0)

    
 

Intra-dialysis

(-37.6, 35.1)

(-34.0, 43.2)

(-21.8, 17.3)

---

---

---

---

  

0.62 (0.39, 0.78)

0.55 (0.29, 0.73)

0.87 (0.77, 0.93)

    
  

-8.6 (-14.3, -2.8)

-2.7 (-8.4, 2.9)

-9.6 (-15.0, -4.1)

-7.3 (-12.1, -2.5)

   

Cumulative

Pre- dialysis

(-43.2, 26.1)

(-36.7, 31.2)

(-42.5, 23.3)

(-36.4, 21.8)

---

---

---

  

0.57 (0.34, 0.73)

0.62 (0.39, 0.78)

0.54 (0.31, 0.71)

0.65 (0.45, 0.79)

   
  

0.6 (-4.5, 5.8)

6.5 (0.2, 12.8)

-0.36 (-5.1, 4.4)

1.9 (-2.6, 6,3)

9.2 (5.5, 12.9)

  
 

Post-dialysis

(-30.4, 31.7)

(-31.60 44.5)

(-29.1, 28.4)

(-25.1, 28.8)

(-13.2, 31.6)

---

---

  

0.67 (0.47, 0.80)

0.46 (0.20, 0.66)

0.67 (0.47, 0.81)

0.72 (0.54, 0.84)

0.67 (0.49, 0.80)

  
  

0.2 (-5.0, 5.4)

6.0 (0.0, 12.0)

-0.8 (-5.4, 3.8)

1.4 (-2.4, 5.3)

8.8 (5.8, 11.7)

-0.4 (-2.3, 1.3)

 
 

Intra-dialysis

(-31.2, 31.6)

(-30.4, 42.4)

(-28.5, 27.0)

(-21.9, 24.8)

(-9.1, 26.6)

(-11.4, 10.5)

---

  

0.65 (0.46, 0.79)

0.49 (0.25, 0.68)

0.69 (0.50, 0.82)

0.78 (0.64, 0.87)

0.75 (0.61, 0.85)

0.94 (0.89, 0.97)

 
  1. Each cell contains the mean difference (95% confidence interval) (first row), 95% agreement limits (second row) and CCC (95% confidence interval) (third row).
  2. † Mean difference was calculated by subtracting the row from the column.