Table 1 Transfusion information, fetus demographic, concentration, and IVRfD of metals in RBC transfusions, maternal venous blood, and cord blood.
Stage | Unit | N | Mean | Median | Minimum | Maximum | |
|---|---|---|---|---|---|---|---|
RBC transfusion | Number of IUBT | 144 | 3.30 | 3.00 | 1 | 9 | |
Gestational age | Weeks and days | 144 | 28 weeks and 4 days | 28 weeks and 5 days | 18.0 | 35.0 | |
Transfusion volume | mL | 138 | 49.43 | 50.00 | 8 | 103 | |
Estimated fetal weight | gm | 37 | 1507.62 | 1450.00 | 324 | 2654 | |
Pre-transfusion hemoglobin | g/dL | 136 | 8.39 | 8.40 | 1.20 | 16.00 | |
Mid-transfusion hemoglobin | g/dL | 108 | 13.68 | 14.45 | 2.80 | 18.80 | |
Post-transfusion hemoglobin | g/dL | 128 | 15.43 | 16.00 | 7.10 | 19.00 | |
Hg | µg/L | 127 | 1.499 | 0.739 | 0.0011 | 28.225 | |
Cd | µg/L | 127 | 0.910 | 0.715 | 0.001 | 3.947 | |
Pb | µg/L | 127 | 14.640 | 12.812 | 3.116 | 41.439 | |
As | µg/L | 127 | 0.808 | 0.483 | 0.0007 | 8.423 | |
IVRfD | |||||||
Hg | µg/kg | 125a | 0.0766 | 0.0319 | 0.000 | 2.117 | |
Cd | µg/kg | 125 | 0.0414 | 0.0271 | 0.00004 | 0.174 | |
Pb | µg/kg | 125 | 0.672 | 0.543 | 0.065 | 2.763 | |
As | µg/kg | 125 | 0.0365 | 0.0204 | 0.000023 | 0.430 | |
Third trimester-venous blood | Hg | µg/L | 30 | 0.399 | 0.334 | 0.0011 | 1.075 |
Cd | µg/L | 30 | 0.851 | 0.281 | 0.001 | 3.526 | |
Pb | µg/L | 30 | 4.954 | 4.254 | 0.720 | 19.566 | |
As | µg/L | 30 | 0.413 | 0.240 | 0.0007 | 1.859 | |
Delivery-cord blood | Hg | µg/L | 21 | 0.680 | 0.515 | 0.051 | 2.029 |
Cd | µg/L | 21 | 0.350 | 0.079 | 0.001 | 2.371 | |
Pb | µg/L | 21 | 4.273 | 4.352 | 0.233 | 12.053 | |
As | µg/L | 21 | 0.377 | 0.093 | 0.0007 | 3.558 | |
