Research Article

Blood Donors’ Age, Haemoglobin Type, G6PD Status, and Blood Group Impact Storability of CPDA-1 Banked Whole Blood: A Repeated-Measure Cohort Study in Cape Coast, Ghana

Table 6

Median changes in plasma K+ levels in donor units during 35 days’ storage.

VariablesΔK+ (%ΔK+) plasma levels
Day 7Day 14Day 21Day 35

G6PD status
Normal6.165 (150.4)10.99 (269.1)13.730 (336.8)19.800 (487.1)
Defective5.640 (135.0)9.690 (240.5)12.810 (312.1)19.91 (469.6)

Haemoglobin type
Hb A5.990 (149.8)10.620 (259.5)13.630 (336.8)19.830 (480.3)
Hb AC6.330 (157.7)11.220 (267.8)13.910 (350.4)21.120 (489.5)
Hb AS5.910 (150.8)10.250 (251.8)12.740 (318.9)19.640 (491.0)

Age group (years)
<205.975 (147.5)10.750 (260.4)13.430 (329.9)19.430 (484.9)
≥206.700 (150.0)11.060 (264.0)15.250 (339.2)21.800 (484.6)

Blood group
A6.040 (162.8)10.790 (260.6)12.400 (325.1)19.070 (475.3)
B6.290 (162.0)11.170 (282.4)14.160 (351.6)21.300 (520.3)
O5.875 (144.1)10.190 (244.4)13.320 (319.6)19.890 (471.9)

Change in potassium was calculated as difference between the daily measurement and the baseline (day 0) K+ measurement.