Research Article
The Effects of Sample Transport by Pneumatic Tube System on Routine Hematology and Coagulation Tests
Table 1
Summary of the differences in CBC between pneumatic tube samples and hand delivered samples.
| | S. no. | Paired samples | Mean difference | Standard deviation of mean difference | 95% confidence interval of mean difference | P value | | Lower | Upper |
| | 1 | RBC P-RBC M (x1012/l) | -.03 | .21 | -.08 | .01 | .11 | | 2 | HB P-HB M (g/dl) | -.01 | .24 | -.06 | .05 | .84 | | 3 | MCV P-MCV M (fl) | -.82 | 1.9 | -1.28 | -.37 | .001 | | 4 | MCH P-MCH M (pg) | .03 | .41 | -.06 | .12 | .500 | | 5 | MCHCP-MCHC M (g/dl) | .36 | .84 | .17 | .56 | <0.001 | | 6 | RDW P-RDW M (%) | -.33 | .67 | -.49 | -.18 | <0.001 | | 7 | WBC P-WBC M (x109/l) | .04 | 1.2 | -.24 | .32 | .759 | | 8 | NE P-NE M (%) | -.45 | 2.94 | -1.13 | .21 | .182 | | 9 | LY P-LY M (%) | .20 | 3.30 | -.55 | .96 | .590 | | 10 | MO P-MO M (%) | .30 | 1.37 | -.01 | .62 | .057 | | 11 | EO P-EO M (%) | .28 | 3.46 | -.50 | 1.08 | .472 | | 12 | BA P-BA M (%) | .01 | .33 | -.06 | .08 | .754 | | 13 | PLT P-PLT M (x109/l) | .13 | .26 | .07 | .19 | <0.001 | | 14 | MPV P-MPV M (fl) | -.18 | .64 | -.32 | -.03 | .017 |
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P: pneumatic tube samples; M: hand delivered samples; RBC: red blood cells count; HB: hemoglobin; MCV: mean corpuscular volume; MCH: mean corpuscular hemoglobin; RDW: red cell distribution width; WBC: white blood cell count; NE: neutrophils; LY: lymphocytes; MO: monocytes; EO: eosinophils; BA: basophils; PLT: platelets; MPV: mean platelet volume.
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