Table 5.

The variance apportionment of the log-transformed creatinine-corrected concentration of BPA in urine samples collected from eight people over a 1-week period.

Table 5. The variance apportionment of the log-transformed creatinine-corrected concentration of BPA in urine samples collected from eight people over a 1-week period.
		Spot urine collectiona				First morning urine voids				24-hr urine void
Variance parameter		Variance component		Percentage of total variance		Variance component		Percentage of total variance		Variance component		Percentage of total variance
Between persons		0.0117		9		0.0234		23		0.0070		12
Within person/between days)		0.0267		21		0.0796		77		0.0521		88
Within person/within day)		0.0902		70
aThe variance component (percentage of total variance) of urinary concentrations of BPA in spot urine samples without participant 2 who had the most missing spot samples was 0.0103 (7%; between persons), 0.0296 (22%; within person and between days), and 0.0973 (71%; within person and within day).