Skip to main content

Table 1 Frequency (n), percent (%), odds ratios (OR), 95% confidence intervals (CI) for odds ratios and P-values from the univariate analysis of the relationship between demographic determinants and acute gastrointestinal illness in randomly selected residents of two Canadian study areas, 2001 to 2003 (N = 8,108)

From: Demographic determinants of acute gastrointestinal illness in Canada: a population study

Variable

n

%

OR

CI for OR

P-value

Number of People in Household

    

0.005 a

   One

2163

26.68

0.76

(0.63, 0.91)

0.004

   Two

2644

32.61

0.80

(0.68, 0.95)

0.012

   Three or more b

3220

39.71

1.00

-

-

   Missing

81

1.00

   

Urban/Rural Status

    

0.080 a

   Urban b

5957

73.47

1.00

-

-

   Rural

1486

18.33

0.84

(0.69, 1.02)

0.080

   Missing

751

9.31

   

Education

    

0.150 a

   No high school diploma b

1323

16.32

1.00

-

-

   High school diploma

3190

39.34

1.20

(0.96, 1.51)

0.124

   College/trade school diploma

1271

15.66

1.30

(1.00, 1.70)

0.052

   University, graduate, or professional diploma

1648

20.33

1.31

(1.02, 1.69)

0.035

   Missing

601

8.35

   

Culture

    

<0.001 a

   North American b

6492

80.07

1.00

-

-

   European

762

9.40

0.75

(0.57, 0.98)

0.038

   African

67

0.83

0.26

(0.04, 0.83)

0.061

   Mediterranean

88

1.09

0.62

(0.24, 1.31)

0.259

   Asian

427

5.27

0.37

(0.22, 0.58)

<0.001

   Native North American/Aboriginal

91

1.12

1.54

(0.83, 2.65)

0.142

   South American

31

0.38

0.91

(0.22, 2.57)

0.872

   Austral-Asian

24

0.30

0.77

(0.12, 2.62)

0.723

   Missing

126

1.55

   

Income

    

0.033 a

   <$20 000b

951

11.73

1.00

-

-

   >$20 000 to <$40 000

1415

17.45

0.78

(0.61, 1.02)

0.074

   >$40 000 to <$60 000

1469

18.12

0.77

(0.59, 1.00)

0.047

   >$60 000 to <$80 000

987

12.17

1.07

(0.82, 1.40)

0.662

   >$80 000

1188

14.65

0.82

(0.62, 1.07)

0.138

   Missing

2098

25.88

   

Age (years)

    

<0.001 a

   0–9 b

562

6.93

1.64

(1.29, 2.09)

<0.001

   10–14

323

3.98

1.12

(0.78, 1.57)

0.527

   15–19

319

3.93

0.90

(0.61, 1.30)

0.605

   20–24

339

4.18

1.59

(1.16, 2.14)

0.003

   25–64

4747

58.55

1.00

-

-

   65–69

448

5.53

0.60

(0.40, 0.87)

0.009

   70–74

387

4.77

0.32

(0.18, 0.52)

<0.001

   75–84

413

5.09

0.43

(0.26, 0.66)

<0.001

   >84

98

1.21

0.36

(0.11, 0.86)

0.045

   Missing

472

5.82

   

Gender

    

0.001 a

   Male b

3254

40.13

1.00

-

-

   Female

4828

59.55

1.28

(1.11, 1.50)

0.001

   Missing

26

0.32

   
  1. a Global P-value for Wald test of Ho: same level of risk in all categories
  2. b reference group