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Table 4 Trends of confirmed malaria by year and Species 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

Plasmodium species

Year

IRR

Std. Err.

P value

(95% C. I.)

All positive

2003/4

1

    

2004/5

0.30

0.02

< 0.001

0.27

0.34

2005/6

0.40

0.02

< 0.001

0.36

0.44

2006/7

1.15

0.04

< 0.001

1.07

1.24

2007/8

2.26

0.08

< 0.001

2.11

2.41

2008/9

2.87

0.09

< 0.001

3.00

3.06

2009/10

4.08

0.13

< 0.001

3.84

4.34

2010/11

0.96

0.04

0.30

0.89

1.04

P. vivax in reference to P. falciparium

During the whole period

1

    

0.48

0.02

< 0.001

0.43

0.52

Rate ratio

2003/4

1

    

P. vivax to

2004/5

2.30

0.20

< 0.001

1.95

2.72

P. falciparium

2005/6

1.41

0.12

< 0.001

1.19

1.67

 

2006/7

1.57

0.10

< 0.001

1.39

1.78

 

2007/8

1.59

0.09

< 0.001

1.42

1.77

 

2008/9

0. 90

0.05

0.06

0.80

1.00

 

2009/10

0.84

0.05

< 0.01

0.76

0.94

2010/11

1.61

0.10

< 0.001

1.42

1.83