. Author manuscript; available in PMC: 2009 Feb 9.

Published in final edited form as: Clin Chem. 2008 May 29;54(8):1363–1371. doi: 10.1373/clinchem.2007.102202

Table 2.

Sample means, within-visit standard deviations, reliability coefficients (R), and CVs for replicate samples drawn from a single venipuncture (substudy 2), ARIC Carotid MRI Study 2005-2006

	Mean on QC pairs		Within-visit SD $({\hat{σ}}_{e})$		R		CV
	% gated	MFI	% gated	MFI	% gated	MFI	% gated	MFI
Leukocyte markers
Monocytes
CD14⁺	100.0	113.1	0.0	4.1	0.35	0.97	0.0	3.7
CD14⁺/TLR-2⁺	66.0	14.2	2.9	0.3	0.93	0.92	4.4	1.9
CD14⁺/TLR-4⁺	64.6	16.1	1.3	0.4	0.89	0.85	2.1	2.6
CD14⁺/CD41⁺/TLR-4⁺	10.9	47.4	1.0	3.3	0.80	0.63	9.5	6.9
CD14⁺/CD162⁺	100.0	116.1	0.0	3.8	0.35	0.94	0.0	3.3
CD14⁺/TLR-2⁺/CD162⁺	67.6	14.0	2.9	0.3	0.92	0.92	4.3	2.0
CD14⁺/COX-2⁺	98.0	16.7	1.3	1.3	0.69	0.73	1.3	7.8
CD45⁺	94.4	77.9	1.1	2.9	0.87	0.91	1.1	3.8
CD45⁺/MPO⁺	94.4	92.8	1.1	7.7	0.87	0.90	1.1	8.3
Granulocytes
CD162⁺	99.9	81.2	0.1	2.6	0.67	0.97	0.1	3.2
MPO⁺	—	845.2	—	32.7	—	0.96	—	3.9
Lymphocytes
CD162⁺	88.8	55.1	1.5	1.7	0.97	0.97	1.7	3.1
Platelet markers
Total platelets CD61⁺	5.5	64.7	0.5	1.9	0.91	0.99	8.8	3.0
Single platelets CD61⁺	85.5	—	1.5	—	0.81	—	1.8	—
CD61⁺/CD62P⁺	29.8	21.8	6.0	1.5	0.82	0.87	20.2	6.7
CD41⁺	95.1	80.8	1.1	3.5	0.88	0.91	1.1	4.3
CD41⁺/CD154⁺	3.4	12.0	0.9	0.4	0.80	0.71	25.6	3.6
Cell aggregates
Platelet-monocyte	17.4	48.4	1.2	2.9	0.89	0.76	7.1	6.0
Platelet-granulocyte	16.8	50.3	1.2	1.8	0.89	0.91	7.0	3.5
Platelet-lymphocyte	16.8	49.2	1.1	2.6	0.91	0.85	6.6	5.3

n = 112 replicate pairs. Total platelets include single (activated and nonactivated) platelets and platelet-platelet aggregates. —, measures not available.