Table 3 Association between different risk factors and malaria/STH co-infection among pregnant women in Gilgel Gibe hydropower dam area, Southwest Ethiopia, Chi square analysis, August to September 2011

Residence

Urban

193

11

0.101

Rural

195

19

House type

Thatched

148

16

0.058

Corrugated iron sheet

240

14

Presence of stagnant water

Yes

62

10

0.011

No

326

20

Age group

16-20

128

8

0.826

21-25

115

10

26-30

110

10

31-35

27

2

36-40

8

0

Utilization of human feces as fertilizer

Yes

32

7

0.007

No

356

23

Habit of eating soil

Yes

22

5

0.020

No

366

25

Trimester

First trimester

88

7

0.675

Second trimester

157

10

Third trimester

143

13

Parity

Primigravide

125

8

0.324

Multigravide

263

22