Is kallikrein-8 a blood biomarker for detecting amnestic mild cognitive impairment? Results of the population-based Heinz Nixdorf Recall study

Table 2 Association between KLK8 and cognitive status (aMCI vs. CU)

	OR	95%CI		OR	95%CI
Per 500 pg/ml KLK8	1.113	0.821	1.511	2.683	1.053	6.835
Experimenter 2 vs. 3^a				0.031	0.002	0.577
Experimenter 1 vs. 3^a				5.916	0.897	39.033
Freezing duration, years				0.927	0.842	1.020

Age and sex are taken into account by matching for them
aMCI amnestic mild cognitive impairment, CU cognitive unimpaired, OR odds ratio, 95%CI 95%-confidence interval, KLK8 kallikrein 8
^a We adjusted for experimenter as a proxy for the inter-assay variability

ISSN: 1758-9193