Journal of Blood Transfusion / 2012 / Article / Tab 2

Research Article

Quality of Red Blood Cells Isolated from Umbilical Cord Blood Stored at Room Temperature

Table 2

Comparison of cord blood characteristics and cord RBC quality measures between cord blood groups based on baby’s gender and a method of cord blood collection.

Cord blood characteristics and cord RBC quality parametersBaby’s genderMethod of cord blood collection
Male ( 𝑛 = 1 7 )Female ( 𝑛 = 1 3 ) 𝑃 valueDelivered placenta ( 𝑛 = 3 )Placenta in utero ( 𝑛 = 2 7 ) 𝑃 value

Age of cord blood30.2 (11.8)31.2 (8.3)0.790824.5 (0.4)31.3 (10.6)0.0028*
Cord blood volume60 (23)70 (34)0.331061 (25)65 (29)0.8113
Cord blood hematocrit0.30 (0.05)0.31 (0.04)0.79430.31 (0.03)0.30 (0.05)0.8676
Baby’s weight3546 (557)3336 (333)0.29063230 (407)3498 (499)0.3821
HbF (%)88.5 (5.6)91.5 (6.0)0.2891· (·)90.1 (5.8)·
Cord blood  : CPD1.71 (0.66)2.01 (0.96)0.33101.73 (0.70)1.85 (0.82)0.8113
ATP (μmol/g Hb)2.87 (0.58)2.68 (0.83)0.48112.68 (0.46)2.80 (0.72)0.7936
Hemolysis (%)0.12 (0.05)0.12 (0.05)0.79870.11 (0.02)0.12 (0.05)0.6607
MetHb (%)4.54 (1.62)4.67 (2.07)0.85314.46 (1.68)4.61 (1.84)0.8941
2,3-DPG (mmol/L)0.11 (0.15)0.11 (0.26)0.99330.05 (0.03)0.12 (0.21)0.5923
Deformability0.445 (0.029)0.447 (0.032)0.89720.437 (0.014)0.447 (0.031)0.5834
Rigidity1.41 (0.21)1.56 (0.43)0.20251.27 (0.23)1.49 (0.33)0.2747
Microparticle events (%)0.3 (0.2)0.2 (0.1)0.24830.9 (0.1)0.3 (0.2)0.8861
PS-positive RBCs (%)5.4 (1.0)5.1(0.7)0.38424.7 (1.4)5.3 (0.8)0.2113
CD47-positive RBCs (%)99.9 (0.1)99.8 (0.2)0.070699.9 (0.1)99.9 (0.1)0.4089
PS-positive microparticles (%)61.2 (21.8)61.5 (11.2)0.977057.2 (2.4)61.9 (19.3)0.6848
CD47-positive microparticles (%)87.6 (30.1)89.2 (10.2)0.867476.3 (16.6)89.8 (24.8)0.3736
MFI of PS on RBCs47 (7)44(13)0.392451 (10)45 (10)0.2715
MFI of CD47 on RBCs275 (73)271 (99)0.8983299 (114)271 (82)0.5814
MFI of PS on microparticles324 (62)324 (46)0.9946366 (74)319 (52)0.1730
MFI of CD47 on microparticles837 (434)694 (258)0.3209899 (336)761 (378)0.5528

The numbers in the table are absolute values for each parameter (standard deviation in brackets), * 𝑃 <0.05 (Student’s 𝑡 -test). HbF—fetal hemoglobin, CPD—citrate-phosphate-dextrose (anticoagulant), ATP—adenosine triphosphate, MetHb—methemoglobin, 2,3-DPG—2,3-diphosphoglycerate, PS—phosphatidylserine, and MFI—mean fluorescence intensity.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.