Table 5.

Regression model predicting RBF slopes from parameters at baseline or averaged during the whole period of observation (baseline through year 3)

Parameter	RBF Slope (R²; ml/min per 1.73 m² per yr)
	0.22			0.20
	b^a	SE	P	b^b	SE	P
Male gender	−22.2	24.2	NS	−28.7	24.9	NS
Age (yr)	1.39	1.14	NS	1.56	1.21	NS
BMI	1.38	1.75	NS	0.05	1.88	NS
Hypertension	−40.3	18.3	0.030	−34.3	18.3	NS
MAP (mmHg)	1.12	0.77	NS	1.18	1.00	NS
Log 10 TKV (ml)	−27.9	42.3	NS	−68.0	52.3	NS
GFR (ml/min per 1.73 m²)	−0.0.56	0.38	NS	−0.62	0.47	NS
Serum uric acid (mg/dl)	20.3	9.1	0.027	17.5	9.4	NS
Serum HDL cholesterol (mg/dl)	1.64	0.75	0.031	2.11	085	0.015
Serum LDL cholesterol (mg/dl)	−0.39	0.24	NS	−0.28	0.31	NS
Urine volume (L)	−7.3	8.0	NS	−12.8	8.7	NS
UNaE (mEq/24 h)	−0.15	0.13	NS	−0.10	0.19	NS
Log 10 UAE (mg/24 h)	38.0	20.2	NS	46.3	29.4	NS
Protein intake (g/24 h)	0.41	0.47	NS	0.81	0.69	NS

↵^a Slopes per unit change in baseline parameters.
↵^b Slopes per unit change averaged during the whole period of observation.