Table 1: Demographic and hematologic parameters among first and second groups of donors.

 

Parameters

 

First group (donation < 6)

(n = 50)

 

Second group (donation  6)

(n = 44)

 

p-value

 

Age (Years)

31.7 ± 7.8

33.9 ± 7.4

0.17

BMI (Kg/m2)

24 ± 3.9

25 ± 2.5

0.07

SBP (mmHg)

119 ± 9

117 ± 19

0.41

DBP (mmHg)

77.7 ± 5.5

76 ± 6.5

0.18

Hb (g/dL)

15.1 ± 1.3

15.2 ± 1.3

0.72

RBCs (× 1012/L)

5.6 ± 0.55

5.7 ± 0.62

0.32

HCT (%)

47.3 ± 2.8

47.8 ± 4.2

0.53

MCV (fL)

85.3 ± 5.3

82 ± 14

0.15

MCH (pg)

29.4 ± 2.8

28.7 ± 3.5

0.31

MCHC (g/dL)

34.3 ± 1.6

34.4 ± 2.6

0.92

RDW-CV (%)

14.7 ± 1.3

15.3 ± 2.1

0.07

WBCs (× 109/L)

6.8 ± 2.4

6.3 ± 2.3

0.27

PLTs (× 109/L)*

275 (257-295)

263 (245-288)

0.44

Ferritin (ng/mL)*

81 (65-100)

76 (62-95)

0.70

Data are presented as mean ± SD, *Data are presented as geometric mean (95% confidence interval) evaluated by Independent-Samples T test.