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Table 1 Socio-demographic, epidemiological characteristics and malaria parasitaemia among study children and episode of haemoglobinuria

From: Blackwater fever in Congolese children: a report of clinical, laboratory features and risk factors

 

Haemoglobinuria

 

Positive n (%)

Negative n (%)

All n (%)

OR (IC95%)

p

Age distribution

    

NS

- ≤ 5 ans

8(18.6)

20(23.3)

28(21.7)

1

 

- > 5 ans

35(81.4)

66(76.7)

101(78.3)

1.33 (0.53–3.32)

 

Sex. n

    

NS

- Male

21(48.8)

40(46.7)

61(47.3)

1.10 (0.53–2.28)

 

- Female

22(51.2)

46(53.5)

68(52.7)

1

 

G6PD Status (UI/L)

    

0.017

 Normal

35(81.4)

52(60.5)

87(67.4)

2.86 (1.86–6.91)

 

 Deficiency

8(18.6)

34(39.5)

42(32.6)

1

 

LDH (UI/L)

    

NS

 < 200

20(46.5)

40(46.5)

60(46.5)

1.29 (0.57–2.91)

 

 200 à 400

14(32.6)

36(41.9)

50(38.8)

1

 

 > 400

9(20.9)

10(11.6)

19(14.7)

2.31 (0.78–6.89)

 

Blood group

    

NS

 A

7(16.3)

23(26.8)

30(23.3)

0.57 (0.22–1.52)

 

 AB

3(7.0)

6(7.0)

9(7.0)

0.94 (0.14–4.87)

 

 B

8(18.6)

10(11.6)

18(14.0)

1.50 (0.53–4.29)

 

 O

25(58.1)

47(54.6)

72(55.7)

1

 

Season

    

< 0.001

 Rainy

38(88.4)

51(59.3)

89(69.0)

5.22 (1.87–14.56)

 

 Dry

5(11.6)

35(40.7)

40(31.0)

1

 

Plasmodium

    

NS

 Falciparum

37(86.0)

73(84.9)

110(85.3)

1.10 (0.39–3.12)

 

 Falciparum and malariae

6(14.0)

13(15.1)

19(14.7)

1

 

Parasitaemia (parasites/microliter)

    

0.005

 Low

32(78.0)

43(51.8)

76(61.3)

3.31 (1.41–7.78)

 

 High

9(22.0)

40(48.2)

48(38.7)

1