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Table 2 Comparison of hematological parameters between smokers and non-smokers. Data are presented as means ± SD or medians (range)

From: Relationship between tobacco smoking and hematological indices among Sudanese smokers

Hematological parameters

Nonsmokers( n = 60)

Smokers ( n = 60)

p value

RBCs (× 1012/L)

5.18 ± 0.47

5.37 ± 0.42

0.017*

Hb (g/dl)

15.17 ± 1.23

16.17 ± 1.58

0.000*

HCT (%)

46.1 (37.50–60.50)

45.6 (36.3–52.9)

0.122

WBCs (× 109/L)

4.75 (2.4–8.0)

5.2 (3.2–11.1)

0.023*

Neutrophils (× 109/L)

1.7 (0.4–12.50)

2.6(2.0–3.88)

0.000*

Lymphocytes (× 109/L)

2.0 (1.1–4.8)

1.9 (1.1–7.4)

0.118

Mixed

0.5 (0.1–1.8)

0.6 (0.2–2.0)

0.509

MCV (fl)

90.1 (69.8–117.5)

85.8 (67.1–95.8)

0.000*

MCH (Pg)

29.65 (21.5–35.7)

30.55 (21.2–34.0)

0.029*

MCHC (g/dl)

32.45 (26.6 -36.9)

35.5 (31.6–37.20)

0.000*

PLT (× 10^9/L)

258 (126.0–425.0)

256 (104.0–443.0)

0.844

RDW (%)

14.1 (11.4–16.8)

15.75 (13.6–20.5)

0.000*

MPV (fl)

15.05 (9.3–20.3)

6.65 (5.1–9.30)

0.000*

PDW (fl)

9.5 (8.1–15.2)

14.9 (12.5–18.1)

0.000*

  1. *Significance of difference in Mann–Whitney test for data following non-normal distributed and t-test for normal distributed data