Table 1. Predictive Characteristics of... | American Society of Hematology

Table 1.

Predictive Characteristics of Serologic Tests for Platelet Autoantibodies

Test	Method	Sensitivity	Specificity	Likelihood Ratio^*
Capture-P	Direct	17/46 (37%)	10/15 (67%)	1.1
Capture-P	Indirect	20/46 (43%)	9/15 (60%)	1.1
CELIA^†	Direct	60/81 (74%)	12/46 (26%)	1.0
ELISA^‡	Indirect	30/88 (34%)	41/53 (77%)	1.5
MAIPAρ	Modified	33/71 (47%)	34/40 (85%)	3.1

Test	Method	Sensitivity	Specificity	Likelihood Ratio^*
Capture-P	Direct	17/46 (37%)	10/15 (67%)	1.1
Capture-P	Indirect	20/46 (43%)	9/15 (60%)	1.1
CELIA^†	Direct	60/81 (74%)	12/46 (26%)	1.0
ELISA^‡	Indirect	30/88 (34%)	41/53 (77%)	1.5
MAIPAρ	Modified	33/71 (47%)	34/40 (85%)	3.1

Likelihood ratio = sensitivity/(1 − specificity).

Competitive enzyme-linked immunoassay for PAIgG (data from Brighton et al3 ).

Enzyme-linked immunosorbant assay for PAIgG (data from Brighton et al3 ).

ρ Modified monoclonal antibody immobilization of platelet antigens (data from Brighton et al3 ).