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Table 2 Prevalence rates of anemia among indigenous children < 60 months according to physical, demographic, and sanitation characteristics of the household, First National Survey of Indigenous People’s Health and Nutrition, Brazil, 2008–2009

From: Prevalence of anemia and associated factors among indigenous children in Brazil: results from the First National Survey of Indigenous People’s Health and Nutrition

Characteristic studied

N

Prevalence (%)

PR

CI 95%

Type of flooring

  Ceramic

462

38.95

1.00

Reference

  Cement

1578

44.70

1.15

0.99-1.34

  Wood

1405

60.83

1.56

1.29-1.89

  Dirt

1922

56.55

1.45

1.23-1.72

Type of walls

  Brick

1863

42.74

1.00

Reference

  Mud

764

54.44

1.27

1.12-1.45

  Wood

1966

60.46

1.41

1.24-1.62

  Thatch

297

64.71

1.51

1.28-1.79

  Canvas, plastic, or other

498

49.54

1.16

1.00-1.34

Type of roofing

  Clay tile

1558

43.60

1.00

Reference

  Corrugated sheets

2054

52.34

1.20

1.04-1.39

  Wood or thatch

1735

60.87

1.40

1.22-1.59

  Canvas, plastic, or other

42

66.34

1.52

1.18-1.96

Electricity in the home

  Yes

3129

47.56

1.00

Reference

  Yes, but discontinuous

841

59.70

1.26

1.10.-1.43

  No

1414

59.14

1.24

1.12-1.38

No. of residents in household

  

p = 0.000*

 

  ≤ 4

1273

46.01

1.00

Reference

  5–8

2641

50.84

1.10

1.02-1.20

  ≥ 9

1464

58.63

1.27

1.14-1.42

No. of children < 5 years old in household

  

p = 0.000*

 

  1

1885

47.63

1.00

Reference

  2

2269

51.33

1.08

0.98-1.18

  3

868

56.95

1.20

1.08-1.32

  ≥ 4

355

61.67

1.29

1.12-1.49

Defecation location

  Indoor household facility

768

41.26

1.00

Reference

  Outdoor household facility

2719

53.33

1.29

1.10-1.51

  Outdoors in the open

1865

54.07

1.31

1.12-1.54

  Other

26

34.10

0.83

0.51-1.35

Predominant destination of the household trash

  Collected by removal service

640

44.00

1.00

Reference

  Buried, discarded, or burned in the village

4378

52.22

1.19

1.02-1.38

  Buried, discarded, or burned outside the village

305

58.17

1.32

1.03-1.70

  Discarded in a river, lake, or ocean

54

70.91

1.61

1.25-2.08

  Other

10

51.72

1.18

0.68-2.04

Source of drinking water

  Faucet inside house

804

45.87

1.00

Reference

  Faucet outside house

2639

51.78

1.13

1.00-1.28

  Shallow well

436

50.23

1.09

0.91-1.32

  River, lake, or reservoir

744

61.55

1.34

1.13-1.59

  Other

766

51.17

1.12

0.86-1.45

  1. PR Prevalence ratio.
  2. CI Confidence interval.
  3. *χ 2 test for linear trend.
  4. Variable retained for multivariate analysis.