. 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 3.

Sample means, between-visit SDs, reliability coefficients (R), and CVs for replicate samples drawn from 2 venipunctures taken 4-8 weeks apart (substudy 3), ARIC Carotid MRI Study 2005-2006

	Mean on QC pairs		Between-visit SD $({\hat{σ}}_{e})$		R		CV
	% gated	MFI	% gated	MFI	% gated	MFI	% gated	MFI
Leukocyte markers
Monocytes
CD14⁺	100.0	114.0	0.0	9.0	0.00	0.76	0.0	7.9
CD14⁺/TLR-2⁺	65.0	14.1	4.7	0.5	0.84	0.90	7.3	3.4
CD14⁺/TLR-4⁺	64.4	16.3	3.1	0.9	0.39	0.21	4.8	5.5
CD14⁺/CD41⁺/TLR-4⁺	11.1	46.7	1.6	3.8	0.77	0.64	14.8	8.2
CD14⁺/CD162⁺	100.0	115.0	0.0	7.0	0.00	0.75	0.0	6.1
CD14⁺/TLR-2⁺/CD162⁺	66.2	14.0	4.6	0.4	0.85	0.92	6.9	3.2
CD14⁺/COX-2⁺	98.2	16.7	2.5	2.2	0.00	0.20	2.5	13.3
CD45⁺	94.1	73.9	1.5	6.3	0.67	0.43	1.6	8.5
CD45⁺/MPO⁺	94.1	90.6	1.5	16.3	0.67	0.52	1.6	18.0
Granulocytes
CD162⁺	99.9	81.6	0.2	10.7	0.17	0.72	0.2	13.1
MPO⁺	—	850.9	—	136.2	—	0.39	—	16.0
Lymphocytes
CD162⁺	88.1	54.4	2.5	3.7	0.73	0.86	2.8	6.9
Platelet markers
Total platelets CD61⁺	5.2	61.6	0.6	5.1	0.94	0.93	11.6	8.2
Single platelets CD61⁺	83.4	—	3.9	—	0.86	—	4.6	—
CD61⁺/CD62P⁺	31.5	23.3	8.9	3.0	0.71	0.91	28.2	13.1
CD41⁺	95.3	80.0	1.5	8.0	0.48	0.60	1.5	10.1
CD41⁺/CD154⁺	3.3	12.0	1.2	0.6	0.54	0.62	37.3	5.3
Cell aggregates
Platelet-monocyte	17.4	47.8	2.2	3.6	0.84	0.70	12.8	7.6
Platelet-granulocyte	17.0	49.7	2.0	3.6	0.86	0.71	11.6	7.2
Platelet-lymphocyte	17.0	48.5	2.1	3.7	0.84	0.75	12.5	7.5

n = 55 replicate pairs. Total platelets include single (activated and nonactivated) platelets and platelet-platelet aggregates. —, measures not available.