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Table 7 Sensitivity, specificity, predictive value and odds ratio of the haematological parameters in diagnosis of malaria

From: Impact of Plasmodium falciparum infection on haematological parameters in children living in Western Kenya

Variable

Sensitivity*

Specificity*

PPV*

NPV*

OR

LR

(95% CI)

(95% CI)

(95% CI)

(95% CI)

(CI)

Platelets< 150000/µL

90 (86,95)

61 (57,66)

69 (64,73)

86 (84,89)

13.8 (7.2,24.8)

2.3

Hb<10g/dl

74 (69,78)

65 (61,68)

60 (55,64)

78 (74,81)

5 (3.9,6.7)

2.1

Monocytes count >1500/µL

74 (67,79)

54 (50,57)

38 (35,43)

84 (80,87)

3.34(2.5, 4.6)

1.6

Lymphocytes count<2000/µL

75(59,87)

46(43,49)

6(4,8)

97(95,98)

2.7(1.3,5.8)

1.4

WBC>17000/uL

70 (56,81)

46 (43,49)

8 (6,1)

96 (93,98)

2.1 (1.1,3.7)

1.3

Neutrophils count >7500/µL

72(60,82)

38(34,42)

10(7,12)

93(90,96)

1.6(0.9,2.8)

1.2

  1. PPV- Positive Predictive Value, NPV-Negative Predictive value, LR- Likelihood ratio, *Percent, OR=odds ratio