Table 2.

Cell counts and data loss with a Cell-Dyn 3000 instrument.

Cell type	Mean cell count in CBC result	Mean number of cells analysed	Mean number pixels on screen*	Information (cell count) lost in scatter-plot display (%)**
WBCs	8675/μL	9100	482	94.4
Granulocytes	3834/μL	4174	348	90.9
Lymphocytes	2992/μL	3068	22	99.3
Monocytes	1334/μL	1379	58	95.7
Eosinophils	349/μL	345	43	87.7

Data shown correspond to the mean values for 153 CBC results from malaria positive patients, obtained with a CD 3000 instrument in Lambaréné, Gabon. *Coloured pixels indicate the events that represent analysed cells in the side-scatter/depolarized side-scatter plot (lobularity/granularity) on-screen (Figure 1). ** % data lost = 1- (Mean number pixels on screen/Mean cell count in CBC result) × 100. Screen images were analysed by taking a screenshot and counting the pixels using ImageJ image processing software.