Table 1.

Frequency and pattern of agglutination in sickle cell patients

Antibody screening
	Frequency	Percent	Valid %	Cumulative %
Agglutination with Coombs reagent only	1	0.8	0.8	0.8
Agglutination with Coombs reagent + enzymes	15	12.5	12.5	13.3
Agglutination with enzyme only	11	9.2	9.2	22.5
Agglutination with auto cells	3	2.5	2.5	25.0
No agglutination	90	75.0	75.0	100.0
Total	120	100.0	100.0