Table 7.

Multicollinearity Diagnostics for 3 Types of Urinary Sodium (Na) Measurements After Running the Fully Adjusted Linear Regression Model for Systolic Blood Pressure

Types of Urinary Na	Variance Inflation Factor (centered)	Variance Inflation Factor (uncentered)	Tolerance (centered)	Leamar's Method	Klein's Rule
Estimated daily Na+ from first morning urine sample	2.05	48.87	0.48	0.70	Multi‐collinearity present
Estimated daily Na+ from second morning urine sample	1.74	36.58	0.57	0.76	Multi‐collinearity present
Measured 24 h urinary Na+	1.06	4.93	0.94	0.97	No multi‐collinearity