TABLE 2.

Odds ratios for a positive LPA response^a in separated-PBMC versus whole-blood assays

Anticoagulant	Storage	HIV positive		HIV negative
		OR	P	OR	P
Heparin	Fresh	19.61	<0.001	3.89	0.071
Heparin	Overnight	6.99	0.002	1.39	0.650
ACD	Fresh	153.62	<0.001	30.49	<0.001
ACD	Overnight	54.74	<0.001	10.86	<0.001

^aSI, ≥3.