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Table 1 Association between parasitaemia, as detected by microscopy, and mother age, pregnancy status and signs/symptoms of malaria.

From: Sub-microscopic infections and long-term recrudescence of Plasmodium falciparum in Mozambican pregnant women

  

Microscopy

   
  

negative

n = 269

positive

n = 15

   

Variable

n

%

n

%

OR

95% CI

p-value*

Age**

<20 y

50

19

4

27

1

 

0.606

 

20–34 y

190

71

10

67

0.66

(0.20; 2.19)

 
 

>= 35 y

27

10

1

7

0.46

(0.05; 4.35)

 

Gestational age (weeks)

1–12

74

28

3

20

1

 

0.670

 

13 – 24

68

25

3

20

1.09

(0.21; 5.58)

 
 

> 24

127

47

9

60

1.75

(0.46; 6.66)

 

Parity***

0

32

12

0

0

-

 

0.292

 

1–3

156

58

12

80

1

  
 

>= 4

80

30

3

20

0.49

(0.13; 1.78)

 

Season

Dry

132

49

11

73

1

 

0.105

 

Wet

137

51

4

27

0.35

(0.11; 1.13)

 

Fever

No

248

92

13

87

1

 

0.481

 

Yes

21

8

2

13

1.82

(0.38; 8.59)

 

Fever/history of fever***

No

107

40

4

27

1

 

0.264

 

Yes

161

60

11

73

1.83

(0.57; 5.89)

 

Arthromyalgia

No

63

23

3

20

1

 

0.767

 

Yes

206

77

12

80

1.22

(0.33; 4.47)

 

Headache

No

27

10

4

27

1

 

0.089

 

Yes

242

90

11

73

0.31

(0.09; 1.03)

 

Pallor

No

255

95

14

93

1

 

1.000

 

Yes

14

5

1

7

1.3

(0.16; 10.61)

 

Anemia

No

137

51

10

67

1

 

0.288

 

Yes

132

49

5

33

0.52

(0.17; 1.56)

 
  1. *, Univariate logistic regression model; **, Two data missing; ***, One data missing; OR, Odds ratio; CI, Confidence interval.