Table 1.
CD4 T cell counting in Yaoundé suburb and Ambang Bikok village obtained by the Auto40 flow cytometer installed in a therapeutic mobile unit, and by the FACSCalibur at the reference laboratory, expressed in 5th-95th percentile and mean.
| n* | 5th- 95th percentile | Mean ± SD | P value** | |
|---|---|---|---|---|
| Yaoundé suburb | 188 | |||
| . Absolute CD4 T cells*** | ||||
| - Auto40 | 111-2624 | 996 ± 874 | ||
| - FACSCalibur | 110-2620 | 989 ± 883 | NS | |
| . Percent CD4 T cells | ||||
| - Auto40 | 6.0-48.0 | 27.1 ± 13.6 | ||
| - FACSCalibur | 6.0-49.0 | 36.7 ± 13.1 | NS | |
| Ambang Bikok | 69 | |||
| . Absolute CD4 T cells | ||||
| - Auto40 | 530-1585 | 1041 ± 317 | ||
| - FACSCalibur | 585-1511 | 1032 ± 294 | NS | |
| . Percent CD4 T cell | ||||
| - Auto40 | 26.8-52.0 | 38.5 ± 7.9 | ||
| - FACSCalibur | 26.2-51.8 | 37.5 ± 8.0 | NS |
* Number of blood samples with successful CD4 T cells counting by both Auto40 and FACSCalibur;
** P value for comparison of mean ± SD by Auto40 versus FACSCalibur taken as reference;
*** Absolute CD4 T cells are expressed in cells/μl.
SD: Standard deviation; NS: Not significant