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Table 1 Risk factors for SARS-CoV-2 related to the seroprevalence of IgG anti-SARS-CoV-2 antibodies

From: Migration in times of pandemic: SARS-CoV-2 infection among the Warao indigenous refugees in Belém, Pará, Amazonia, Brazil

Risk factors

Total

n = 94

%

Positive

n = 84

%

Negative

n = 10

%

OR

IC 95%

p-values

Hypertension

Yes

9

9.6

9

10.7

0

0.0

3.71960E+ 08

0.0 - a

0.9990

No

85

90.4

75

89.3

10

100.0

Ref.

  

Smoking

Yes

25

26.6

23

27.4

2

20.0

2.34

0.30–18.21

0.4180

No

69

73.4

61

72.6

8

80.0

Ref.

  

Alcohol abuse

Yes

35

37.2

31

36.9

4

40.0

0.78

0.15–4.20

0.7760

No

59

62.8

53

63.1

6

60.0

Ref.

  

Diabetes

Yes

3

3.2

2

2.4

1

10.0

0.20

0.01–3.28

0.259

No

91

96.8

82

97.6

9

90.0

Ref.

  

Asthma or bronchitis

Yes

1

1.1

1

1.2

0

0.0

6.54708E+ 08

0.0 - a

1.0000

No

93

98.9

83

98.8

10

100.0

Ref.

  

Cancer

Yes

1

1.1

1

1.2

0

0.0

6.54708E+ 08

0.0 - a

1.0000

No

93

98.9

83

98.8

10

100.0

Ref.

  

Cardiovascular disease

Yes

1

1.1

1

1.2

0

0.0

0.88

0.0 - a

1.0000

No

93

98.9

83

98.8

10

100.0

Ref.

  

Heart disease

Yes

3

3.2

3

3.6

0

0.0

7.41501E+ 08

0.0 - a

0.999

No

91

968

81

96.4

10

100.0

Ref.

  

Sickle cell anemia

Yes

0

0.0

0

0.0

0

0.0

 

No

94

100.0

84

100.0

10

100.0

  

Tuberculosis

Yes

3

3.2

3

3.6

0

0.0

2.06304E+ 08

0.0 - a

1.0000

No

91

96.8

81

96.4

10

100.0

Ref.

  

Autoimmune disease

Yes

2

2.1

1

1.2

1

10.0

0.0

0.0 - a

0.999

No

92

97.9

83

98.8

9

90.0

Ref.

  

Another chronic illness

Yes

4

4.3

3

3.6

1

10.0

1.43366E+ 08

0.0 - a

0.999

No

90

95.7

81

96.4

9

90.0

Ref.

  
  1. a number tends to infinity; OR: Odds ratio (adjusted)