Table 4 RMSE and adjusted R2 of the multivariable-adjusted linear regression models for systolic blood pressure

From: Differential effects of arterial stiffness and fluid overload on blood pressure according to renal function in patients at risk for cardiovascular disease

 

Non-CKD

CKD

 

RMSE

Adjusted R2

P

RMSE

Adjusted R2

P

Model 1

12.359

0.055

 

14.332

0.163

 

Model 2

11.711

0.139

PbaPWV < 0.001

13.783

0.226

PbaPWV < 0.001

Model 3

12.099

0.058

PECW/TBW = 0.752

14.144

0.188

PECW/TBW < 0.001

  1. RMSE root mean squared error, CKD chronic kidney disease, baPWV brachial to ankle pulse-wave velocity, ECW/TBW extracellular water to total body water ratio, PbaPWV probability value of baPWV in the multiple linear regression of Model 2, PECW/TBW probability value of ECW/TBW in the multivariable-adjusted linear regression of Model 3, BMI body mass index, LDL-C low-density lipoprotein cholesterol, eGFR estimated glomerular filtration rate
  2. Note: Model 1. Adjusted for age, sex, smoking, diabetes mellitus, hypertension, cardiovascular disease, BMI, LDL-C, eGFR, and antihypertensive medicationsa
  3. Model 2: Model 1 + baPWV
  4. Model 3: Model 1 + ECW/TBW
  5. aAntihypertensive medications include angiotensin II receptor blockers, angiotensin-converting enzyme inhibitors, calcium channel blockers, β-blockers, α-blockers, and diuretics
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