Table 4.

Differences in plasma levels of oxysterols between both samplings

All data	Independent Mann-Whitney test		Paired Wilcoxon test
	Number of patients F/S	p-value	Number of patients F/S	p-value
25-hydroxycholesterol	16/21	0.488	13/13	0.285
27-hydroxycholesterol	24/24	0.034	24/24	0.075
7α-hydroxycholesterol	24/23	0.105	23/23	0.104
7-ketocholesterol	24/24	0.013	24/24	0.086
Data without outliers
25-hydroxycholesterol	15/21	0.287	13/13	0.285
27-hydroxycholesterol	24/23	0.053	23/23	0.127
7α-hydroxycholesterol	23/22	0.088	21/21	0.068
7-ketocholesterol	22/23	0.002	22/22	0.007

For individual variability and average levels see Table 3. F/S=first/second sampling. Significant results in bold.