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Table 1 Proportional distribution of notified malaria cases by demographic characteristics in Roraima state, 2016–2020

From: Changing transmission dynamics among migrant, indigenous and mining populations in a malaria hotspot in Northern Brazil: 2016 to 2020

 

Characteristic

2016

2017

2018

2019

2020

Total

no. cases

percent

no. cases

percent

no. cases

percent

no. cases

percent

no. cases

percent

no. cases

percent

Age group (years)

0–4

743

9.13

1009

7.54

2029

8.87

2651

11.8

3581

13.04

10,013

10.61

0–9

674

8.28

1007

7.52

2140

9.36

2428

10.81

3270

11.9

9519

10.09

10–19

1439

17.68

2614

19.52

4491

19.64

4699

20.92

5866

21.35

19,109

20.26

20–29

1796

22.07

2675

19.98

4744

20.74

4486

19.97

5628

20.49

19,329

20.49

30–39

1596

19.61

2453

18.32

3884

16.98

3581

15.94

4057

14.77

15,571

16.51

40–49

965

11.86

1818

13.58

2838

12.41

2437

10.85

2638

9.6

10,696

11.34

50 + 

926

11.38

1813

13.54

2746

12.01

2185

9.73

2432

8.85

10,102

10.71

Median age (years)

  

26.79

 

27.91

 

25.51

 

22.96

 

21.63

 

24.16

Indigenous people

 

11.53

 

14.35

 

13.71

 

12.05

 

12.66

 

12.69

Non-indigenous

 

30.78

 

30.32

 

30.04

 

30.57

 

31.14

 

30.57

P. falciparum cases

 

32.58

 

34.65

 

32.06

 

28.43

 

23.43

 

28.17

P. vivax cases

 

25.3

 

26.98

 

24.7

 

22.6

 

21.24

 

23.54

Imported cases

 

31.8

 

32.12

 

30.76

 

29

 

29.63

 

30.8

Autochthonous cases

 

20.21

 

25.27

 

23.09

 

21.83

 

21.27

 

22.21

Sex

Female

3520

39.25

5084

36.10

8497

36.36

8450

37.07

11,355

40.75

36,906

38.02

Male

5449

60.75

8998

63.90

14,872

63.64

14,344

62.93

16,510

59.25

60,173

61.98

Race

Indigenous

2968

33.09

2952

20.96

7180

30.72

9761

42.82

15,277

54.83

38,138

39.29

Non-indigenous

6001

66.91

11,130

79.04

16,189

69.28

13,033

57.18

12,588

45.17

58,941

60.71

Occupation

Agriculture

1214

13.99

3936

29.17

5453

26.65

4930

23.59

5503

22.22

21,036

23.82

Domestic

361

4.16

623

4.62

1360

6.65

1477

7.07

3154

12.74

6975

7.9

Tourism/travel

173

1.99

464

3.44

717

3.5

648

3.1

602

2.43

2604

2.95

Mining

2833

32.64

2510

18.6

3993

19.51

3502

16.76

4567

18.44

17,405

19.71

Timber/fishing

597

6.88

514

3.81

1050

5.13

3163

15.13

5310

21.44

10,634

12.04

Other

3,501

40.34

5447

40.37

7892

38.56

7180

34.35

5627

22.72

29,647

33.57

Level of schooling (years)

None

1806

23.78

2416

19.37

3608

18.52

3131

19.19

4441

23.54

15,402

20.61

1 to 4

1871

24.63

3141

25.19

4027

20.67

3155

19.33

3,669

19.45

15,863

21.23

5 to 8

1837

24.19

3396

27.23

5919

30.38

4631

28.38

4,243

22.49

20,026

26.8

9 to 11

1887

24.84

3088

24.76

5247

26.93

4886

29.94

5,907

31.31

21,015

28.12

12 or more

195

2.57

429

3.44

683

3.51

517

3.17

605

3.21

2,429

3.25

Species

P. falciparum

1486

16.57

1204

8.55

2289

9.80

1423

6.24

5,155

18.50

11,557

11.90

P. vivax

7483

83.43

12,878

91.45

21,080

90.20

21,371

93.76

22,710

81.50

85,522

88.10

Country of infection

Brazil

5715

63.72

11,170

79.32

18,265

78.16

20,049

87.96

26,774

96.08

81,973

84.44

Venezuela

2470

27.54

2322

16.49

4478

19.16

2284

10.02

813

2.92

12,367

12.74

Guyana

772

8.61

575

4.08

610

2.61

433

1.90

266

0.95

2,656

2.74

Other

12

0.13

15

0.11

16

0.07

28

0.12

12

0.04

83

0.09

Imported

 

3306

36.86

3,027

21.50

5,213

22.31

2,845

12.48

1,201

4.31

15,592

16.06

Autohthonous

 

5663

63.14

11,055

78.50

18,156

77.69

19,949

87.52

26,664

95.69

81,487

83.94

Time from symptoms to treatment

Less than 24 h

2447

27.68

2,410

17.62

4,650

20.36

832

22.67

6,441

25.56

20,910

22.62

24 to 48 h

1441

16.3

2,233

16.33

3,692

16.16

55

19.48

4,785

18.99

16,416

17.76

More than 48 h

4952

56.02

9,034

66.05

14,502

63.48

12,662

57.85

13,978

55.46

55,128

59.63

Municipality of notification

Amajari

919

10.25

441

3.13

1,148

4.91

2,069

9.08

3,716

13.34

8,293

8.54

Alto Alegre

1225

13.66

823

5.84

1,687

7.22

3,899

17.11

6,896

24.75

14,530

14.97

Boa Vista

2369

26.41

3,671

26.07

5,713

24.45

6,465

28.36

6,531

23.44

24,749

25.49

Bonfim

42

0.47

45

0.32

136

0.58

138

0.61

426

1.53

787

0.81

Canta

134

1.49

1,628

11.56

2,155

9.22

1,049

4.6

841

3.02

5,807

5.98

Carcarai

376

4.19

1,627

11.55

2,164

9.26

845

3.71

706

2.53

5,718

5.89

Caroebe

249

2.78

127

0.9

264

1.13

686

3.01

592

2.12

1,918

1.98

Iracema

145

1.62

602

4.27

763

3.27

1,069

4.69

1,308

4.69

3,887

4.00

Mucajai

619

6.9

747

5.3

716

3.06

933

4.09

1,141

4.09

4,156

4.28

Normandia

5

0.06

4

0.03

8

0.03

80

0.35

24

0.09

121

0.12

Pacaraima

1444

16.1

1,250

8.88

3,674

15.72

1,857

8.15

2042

7.33

10,267

10.58

Rorainopolis

831

9.27

2,955

20.98

3,603

15.42

1,981

8.69

1741

6.25

11,111

11.45

Sao Joao

488

5.44

91

0.65

475

2.03

634

2.78

638

2.29

2326

2.40

Sao Luiz

50

0.56

46

0.33

199

0.85

142

0.62

94

0.34

531

0.55

Uiramuta

73

0.81

25

0.18

664

2.84

947

4.15

1169

4.2

2878

2.96