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Table 3 Effects of proximity to a dam and altitude on Plasmodium vivax malaria southwest Ethiopia, September 2003 to August 2011

From: Dynamics of Plasmodium falciparium and Plasmodium vivaxin a micro-ecological setting, Southwest Ethiopia: effects of altitude and proximity to a dam

Variables

Categories

IRR of Pv

Std. Err.

P Value

95% C.I.

Lower

Upper

Buffer zones relative to GGHD

< 1 km

1

    

1-2 km

9.82

0.32

< 0.001

9.22

10.47

2-3 km

13.56

0.50

< 0.001

12.61

14.58

3-4 km

11.94

0.49

< 0.001

11.02

12.93

4-5 km

52.00

2.10

< 0.001

48.03

56.29

>5 km

68.72

3.46

< 0.001

62.26

75.85

Altitude in meters

≤ 1700 m

1

    

1701-1800

0.02

0.001

< 0.001

0.02

0.01

1801-1900

0.44

0.03

< 0.001

0.38

0.50

1901-2000

0.64

0.05

< 0.001

0.55

0.75

2001-2100

0.51

0.06

< 0.001

0.41

0.64

>2100 m

0.54

0.06

< 0.001

0.43

0.68

Age (year)

< 5

1

    

5-9

0.91

0.04

0.03

0.83

0.99

10-14

0.84

0.04

< 0.001

0.78

0.92

 

15 +

0.89

0.03

0.001

0.83

0.95

Sex

Male

1

    

Female

1.04

0.02

0.04

1.00

1.09