Table 3:

Factors associated with hydrodynamic radius of CPP2 (n = 470) in the study cohort in a hierarchical regression model [dependent variable CPP2 radius, Model 1 includes age, sex, calcium, phosphate, magnesium and albumin (change in F: P < .001), Model 2 further includes zinc (change in F: P = .010)], shown with regression coefficients (beta) and levels of significance (P-value; bolded if P < .05).

	Model 1		Model 2
CPP2 radius (nm)	Beta	P	Beta	P
Age (years)	0.208	.000	0.186	.000
Sex (m1/f0)	0.053	.180	0.052	.183
Calcium (mmol)	–0.177	.000	–0.171	.000
Phosphate (mmol)	0.237	.000	0.206	.000
Magnesium (mmol)	0.129	.003	0.136	.002
Albumin (mg/dl)	–0.118	.015	–0.073	.152
Zinc (µg/l)			–0.125	.010