Table 2:
Median differences between blood safety parameters in 2017 compared to earlier studies in Francophone Africa blood services
| Studies | Median differences between parameters of 2012 and 2017 | p-value | |||
|---|---|---|---|---|---|
| Parameters | Tagny & al, 2009 | Tagny & al, 2012 | Current study, 2017 | na | |
| Date | August 2009 | January 2012 | October 2017 | na | |
| Number of Blood services | 7 | 28 | 38 | na | |
| 62">Number of Countries | 63">7 | 64">15 | 65">11 | 66">na | 67"> |
| Number of Donations | na* | 370,373 | 572,934 | na | |
| Proportion of blood orders fulfilled % (Median (Range)) | na | 82 (27–100) | 63.8 (20.5–178.8) | −18.2 | 0.001 |
| Proportion of Mobile collections % (Median (Range)) | 45 (10–70) | 23 (0–96) | 80.6 (0–95.9) | +57.6 | 0.000 |
| >Proportion of VNRBD % (Median (Range)) | 92 (25.5–100) | 61 (0–100) | 83(5–100) | +22 | 0.004 |
| Proportion of Regular blood donors % (Median (Range)) | 47.3 (24.4–70) | 24 (0–81.6) | 55.8 (3–95) | +31.8 | 0.001 |
| Proportion of Deferred donors % (Median (Range)) | na | 12 (0–36) | 14.7 (0–66.8) | +2.7 | 0.12 |
| Positive rate of HIV % (Median (Range)) | 2.1 (0.8–2.9) | 1.8 (0–7) | 0.9 (0.2–3.7) | −0.9 | 0.01 |
| Positive rate of HBV % (Median (Range)) | 10.3 (2.7–19) | 6.8 (0.7–7.6) | 6.7 (0.4–11.1) | −0.1 | 0.000 |
| Positive rate of HCV % (Median (Range)) | 3.2 (1.4–7) | 2.5 (0–7.5) | 1.3 (0.1–5.8) | −1.2 | 0.006 |
| Positive rate of Syphilis % (Median (Range)) | 1(0.3–9.5) | 1.7 (0–11) | 0.4 (0.0–5.1) | −1.3 | 0.03 |
| Overall positive rate of TTI % (Median(Range)) | 16.6 (5.2–38.4) | 12.8 (0.7–33.1) | 9.3 (0.7–25.7) | −3.5 | 0.001 |
| Proportion of whole blood % (Median (Range)) | 60 (2–100) | na | 87 (0–100) | na |
*
na: not available or not applicable