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Table 2 Prevalence of ABO blood group in different P. falciparum malaria clinical categories and healthy controls

From: Association of ABO blood group with severe falciparum malaria in adults: case control study and meta-analysis

Blood group

SM (n = 247)

UM (n = 106)

HC (n = 174)

SM vs UM P value, OR (95% CI)

SM vs HC P value, OR (95% CI)

UM vs HC P value, OR (95% CI)

O

63 (25)

52 (49)

74 (42)

ref

ref

ref

A

48 (19)

20 (19)

36 (21)

0.04, 0.50 (0.26 to 0.95)

0.12, 0.63 (0.36 to 1.10)

0.51, 1.26 (0.65 to 2.42)

B

119 (49)

24 (23)

50 (29)

<0.0001, 4.09 (2.30 to 7.25)

<0.0001, 2.79 (1.74 to 4.47)

0.23, 1.46 (0.80 to 2.67)

AB

17 (7)

10 (9)

14 (8)

0.52, 0.71 (0.30 to 1.69)

0.42, 0.70 (0.32 to 1.53)

1.00, 0.98 (0.40 to 2.38)

Non O (A+B+AB)

184 (75)

54 (51)

100 (58)

<0.0001, 2.81 (1.74 to 4.52)

0.0003, 2.16 (1.42 to 3.27)

0.32, 1.30 (0.80 to 2.11)

  1. NOTE: Data are no. (%) of participants unless otherwise specified.
  2. SM: severe malaria; UM: uncomplicated malaria; HC: healthy controls; OR: odds ratio; CI: confidence interval