Research Article

Association of Urinary Sodium Excretion with Vascular Damage: A Local Kidney Effect, Rather Than a Marker of Generalized Vascular Impairment

Table 3

Multiple linear regression models for factors predicting urinary sodium excretion 24h urine sodium (mmol/24h) (adjusted R square=0.168, R square=0.209, p<0.001).

UnstandardizedLBUBStandardizedp
coefficientcoefficient

Age (years)0.003-0.0020.0070.1490.210
Sex (Male)-0.055-0.1550.046-0.1120.285
BMI (Kg/m2)0.010-0.0010.0220.1730.087
Night SBP (mmHg)0.0030.0000.0060.1880.068
Dipping0.003-0.0040.0100.0850.382
HDL, mg/dl0.001-0.0030.0040.0430.626
GFR 0.000-0.0010.0020.0260.799
24h urine albumin (mg/24h)0.1190.0330.2040.2350.007
AIx@75-0.004-0.0070.000-0.2110.072
Capillaries (number/mm3)0.000-0.0010.0020.0310.719

ΒMI: body mass index, SBP: systolic blood pressure, AIx: augmentation index, CI: confidence intervals, LB: lower boundary, and UB: upper boundary.