Table 4.

Multivariable linear regression model of CPT variability score (N = 329)

	Coefficient	P value	95% CI
Lead, mcg/dL	1.8	0.033*	0.2, 3.5
Female sex	1.3	0.38	−1.5, 4.1
Age	0.2	0.51	−0.3, 0.7
Non-white race	0.4	0.82	−2.7, 3.5
Poverty	3.2	0.08	−0.3, 6.7
Maternal education
High school	Ref
Some college	0.2	0.90	−3.1, 3.5
College and more	−0.5	0.77	−3.8, 2.8
CKD Stage	−0.8	0.51	−3.1, 1.5
CKD duration	−0.5	0.024*	−1.0, −0.1
Glomerular CKD diagnosis	−2.5	0.29	−7.3, 2.2
Abnormal birth history	2.9	0.05	−0.01, 5.9
Hypertension	−1.0	0.46	−3.7, 1.7
Proteinuria
None	Ref
Significant	0.9	0.60	−2.4, 4.2
Nephrotic	2.6	0.26	−1.9, 7.1
Anemia	0.1	0.96	−3.0, 3.1

^*p < 0.05