Table 4

Comparison of the odds ratio of diarrhea risk between drinking deep tubewell and shallow tubewell water

Comparison

Control variables

n

OR

95% CI

p

Deep wells vs. shallow wells

Unstratified

29900

0.86

0.74

1.01

0.063

Flood control

Yes

11088

0.81

0.63

1.05

0.118

No

18812

0.92

0.76

1.13

0.430

Population density

Low

8599

0.70

0.51

0.96

0.028

Medium

10407

0.94

0.72

1.23

0.670

High

10894

0.94

0.73

1.21

0.647

Wealth

Low

1789

1.52

0.83

2.77

0.179

Low medium

5468

0.75

0.51

1.10

0.142

Medium

12846

0.95

0.76

1.20

0.668

High medium

5395

0.81

0.58

1.12

0.206

High

1109

0.71

0.29

1.72

0.446

Education

< 1 year

2471

0.11

0.02

0.82

0.031

1-3 years

7989

1.22

0.88

1.68

0.236

3-5 years

10819

0.78

0.57

1.05

0.105

5-7 years

6424

0.96

0.74

1.24

0.763

≥ 7 years

3197

0.58

0.32

1.05

0.072

Year

2000

4118

0.79

0.51

1.22

0.292

2001

4227

0.85

0.55

1.31

0.462

2002

4290

0.84

0.56

1.27

0.410

2003

4335

0.83

0.56

1.26

0.385

2004

4352

0.94

0.64

1.39

0.755

2005

4316

0.79

0.51

1.22

0.286

2006

4262

1.13

0.74

1.72

0.573

Children age

0-12 months

1731

0.46

0.14

1.49

0.194

13-24 months

2097

0.50

0.25

0.99

0.046

25-36 months

2362

1.08

0.62

1.90

0.777

37-48 months

2261

0.75

0.36

1.53

0.426

49-60 months

1968

0.68

0.26

1.73

0.413

Baris drinking shallow tubewell water are the referent group. Univariate logistic regressions were used.

Wu et al. Environmental Health 2011 10:109   doi:10.1186/1476-069X-10-109