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Table 3 Characteristics of cross-border malaria cases originating from Venezuela and Guyana into Brazil, by type, 2016–18

From: Cross-border malaria in Northern Brazil

Variable

From Venezuela

From Guyana

Border

Transna-tional

χ2 p-value

Border

Transna-tional

χ2 p-value

Sex

 

0.012

  

0.126

 Female

2234

2201

 

17

1016

 

 Male

4264

4611

 

60

2274

 

Age group

  

< 0.001

  

0.071

 Under 5

226

198

 

1

53

 

 5 to 15

442

254

 

2

56

 

 16 to 24

1524

1,489

 

21

635

 

 25 to 40

2666

3,161

 

29

1801

 

 41 to 64

1533

1659

 

23

731

 

 Over 65

107

51

 

1

14

 

Nationality

  

< 0.001

  

< 0.001

 Brazil

671

6486

 

73

3,258

 

 Venezuela

5827

322

 

0

6

 

G uyana

0

3

 

4

25

 

 Others

0

1

 

0

1

 

Occupation

  

< 0.001

  

< 0.001

 Agriculture

126

190

 

9

122

 

 Domestic

370

89

 

1

66

 

 Forestry

13

44

 

1

14

 

 Hunter/fisherman

20

16

 

0

3

 

 Miner

5370

4419

 

46

2472

 

 Tourist

21

91

 

1

25

 

 Travelling

87

209

 

2

46

 

 Other

491

1754

 

36

542

 

Detection method

  

< 0.001

  

< 0.001

 Active detection

57

171

 

18

127

 

 Passive detection

6439

6612

 

81

3136

 

Parasite species

  

< 0.001

  

0.930

 P. falciparum

1384

1129

 

9

407

 

 P. vivax

4606

4970

 

63

2638

 

 Mixed/other

508

713

 

5

245

 

State

  

< 0.001

  

< 0.001

 Acre

0

2

 

0

0

 

 Amapá

0

7

 

0

2

 

 Amazonas

28

468

 

0

107

 

 Pará

0

186

 

0

203

 

 Rondônia

0

6

 

0

11

 

 Roraima

6470

5696

 

77

2179

 

  Others

0

437

 

0

788

Â