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. Author manuscript; available in PMC: 2014 May 1.

Published in final edited form as: Pediatr Res. 2013 Sep 3;74(5):592–600. doi: 10.1038/pr.2013.143

Table 3.

Comparison of mean ± SEM RCV results for different methods at 20 and 90 min

	RCV Mean (SEM) (ml)		% Difference (95% CI) (90 min − 20 min) ÷ 20 min
Assay method	20 min	90 min	% Difference (95% CI) (90 min − 20 min) ÷ 20 min	P-value
BioRBC 6 μg/ml	33.7 (0.30)	33.4 (0.30)	−0.7% (−2.8%, 1.4%)	0.283
BioRBC 18 μg/ml	34.2 (0.30)	34.2 (0.30)	−0.2% (−2.6%, 2.3%)	0.821
BioRBC 54 μg/ml	34.3 (0.30)	34.1 (0.30)	−0.6% (−2.9%, 1.8%)	0.465
BioRBC 162 μg/ml	35.0 (0.31)	35.1 (0.31)	0.5% (−3.1%, 4.2%)	0.683
Kidd Jka	35.6 (0.32)	36.1 (0.31)	1.5% (−20.0%, 28.8%)	0.520
Kidd Jkb	37.9 (0.35)	37.7 (0.35)	−0.4% (−2.8%, 2.0%)	0.545
HbF flow cytometry	37.4 (0.37)	36.7 (0.36)	−2.0% (−9.4%, 6.1%)	0.388
HbF HPLC	47.6 (0.45)	49.7 (0.46)	4.5% (−6.0%, 16.3%)	0.120