Comparison between the Traditional and a Rapid Screening Test for Cryoimmunoglobulins Detection

Table 1

Comparison of results obtained with the traditional and the rapid test. For the traditional assay, the number of samples () at different cryoprecipitate scores (see Section 2) by visual inspection at 1, 3, 7, and 15 days of cold incubation, the mean cryocrit %, after centrifugation, at the 15th day, and the corresponding value from the rapid screening test at time 0 are reported. The number of control samples is reported between brackets for the rapid and the traditional test at the 15th day of visual inspection.

Visual inspection	Traditional test					Rapid test ()
	Incubation days				Cryocrit % value at the 15th day	<0.1; ()	0.1-0.2; ()	≥0.2; ()
	15 ()	7 ()	3 ()	1 ()	mean ± SD; median; range
−	252; (100)	257	261	286	0; —	230; (94)	21; (5)	1; (1)
+	42	40	45	40	0.74 ± 0.02; 0.75; 0.5–1	22	20	—
++	105	102	93	88	4.84 ± 0.30; 5.4; 0.5–9.9	11	75	19
+++	101	101	101	86	12.40 ± 1.20; 8.9; 0.5–56.5	—	—	101