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Table 2 CSF biomarker levels measured by three immunoassay platforms

From: Alzheimer’s cerebrospinal biomarkers from Lumipulse fully automated immunoassay: concordance with amyloid-beta PET and manual immunoassay in Koreans

Groups CSF biomarker levels, median (95% CI)
42 40 T-tau P-tau T-tau/Aβ42 P-tau/Aβ42 42/Aβ40
Luminex-AlzBio3
 CN 573.2 (511.3–600.6) n.d. 46.1 (42.1–55.4) 16.1 (13.7–18.6) 0.09 (0.08–0.10) 0.03 (0.03–0.03) n.d.
 SCD 520.3 (484.2–570.5) n.d. 46.0 (41.4–55.6) 16.9 (14.0–20.1) 0.09 (0.08–0.11) 0.03 (0.03–0.04) n.d.
 MCI 411.2 a,b (282.8–541.1) n.d. 48.4 (42.0–63.0) 21.2 (15.1–25.5) 0.12 (0.08–0.18) 0.05 a (0.03–0.08) n.d.
 AD 258.9 a,b,c (234.0–305.0) n.d. 81.6 a,b,c (67.4–127.2) 32.5 a,b (28.9–51.5) 0.36 a,b,c (0.24–0.57) 0.14 a,b,c (0.12–0.22) n.d.
INNOTEST
 CN 756.7 (583.8–879.8) 6724 (5160–9070) 195.0 (156.1–239.7) 38.5 (35.0–49.7) 0.26 (0.23–0.32) 0.05 (0.05–0.07) 0.11 (0.09–0.12)
 SCD 794.9 (642.0–950.7) 7405 (6388–9565) 199.5 (145.6–270.4) 43.8 (34.6–50.1) 0.26 (0.20–0.31) 0.05 (0.04–0.06) 0.10 (0.09–0.12)
 MCI 565.1 b (390.4–734.9) 7158 (5551–8164) 207.7 (156.3–291.5) 46.4 (34.1–53.6) 0.31 (0.23–0.66) 0.07 (0.05–0.12) 0.09 (0.06–0.12)
 AD 407.5 a,b,c (328.1–412.0) 6504 (5664–8218) 548.0 a,b,c (389.4–832.0) 72.5 a,b,c (56.9–113.8) 1.55 a,b,c (0.95–2.71) 0.24 a,b,c (0.14–0.38) 0.05 a,b,c (0.05–0.07)
Lumipulse
 CN 1104 (850.2–1340) 12,521 (10583–14,851) 224.0 (176.0–254.8) 28.7 (22.9–33.5) 0.20 (0.16–0.24) 0.03 (0.02–0.03) 0.09 (0.08–0.09)
 SCD 958.9 (763.9–1148) 12,098 (10655–13,956) 221.5 (174.8–284.5) 28.3 (25.0–37.6) 0.21 (0.17–0.27) 0.03 (0.03–0.03) 0.09 (0.08–0.09)
 MCI 651.4 a,b (465.1–884.6) 10,686 (9385–12,829) 253.0 (192.0–342.0) 35.0 (24.7–52.1) 0.29 a (0.22–0.83) 0.04 a,b (0.03–0.12) 0.07 a,b (0.04–0.09)
 AD 497.9 a,b (407.6–527.7) 11,735 (9603–12,385) 544.0 a,b,c (448.0–735.8) 89.8 a,b,c (66.3–115.7) 1.35 a,b,c (4.03–1.63) 0.22 a,b,c (0.15–0.26) 0.04 a,b,c (0.04–0.05)
  1. aP < 0.05 versus CN; bP < 0.05 versus SCD; cP < 0.05 versus MCI by Dunn’s multiple comparison following Kruskal–Wallis test