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Table 3 Main method of obtaining alcohol for drinkers (11-17 years) using chi square and multinomial logistic regression

From: Parental knowledge of alcohol consumption: a cross sectional survey of 11–17 year old schoolchildren and their parents

  

df

n

Parents*

Friends

Shop

Other

    

% (95% CI)

% (95% CI)

AOR P

% (95% CI)

AOR P

% (95% CI)

AOR P

AOR (95% CI)

AOR (95% CI)

AOR (95% CI)

Gender

Male

3

214

53.7% (46.8-60.6)

17.3% (12.5-23.0)

 

15.0% (10.5-20.4)

 

14.0% (9.7-19.4)

 

0.1 (0.0-0.6)

0.005

0.3 (0.1-1.3)

0.112

0.4 (0.1-1.6)

0.194

Female

 

102

37.3% (27.9-47.4)

37.3% (27.9-47.4)

 

13.7% (7.7-22.0)

 

12.0% (6.4-20.0)

 

Ref

 

Ref

 

Ref

 

Age

11-14

3

108

56.5% (46.2-66.0)

22.2% (14.8-31.2)

 

8.3% (3.9-15.2)

 

13.0% (7.3-20.8)

 

0.3 (0.1-0.8)

0.013

0.2 (0.0-0.6)

0.008

0.6 (0.2-1.6)

0.287

15-17

 

208

44.2% (37.4-51.3)

24.5% (18.8-30.9)

 

17.8% (12.8-23.7)

 

13.5% (9.1-18.9)

 

Ref

 

Ref

 

Ref

 

Deprivation quintile

1 (most affluent)

12

31

38.7% (21.8-57.8)

38.7% (21.8-57.8)

 

12.9% (3.6-29.8)

 

9.7% (2.0-25.8)

 

2.3 (0.7-8.3)

0.189

1.7 (0.4-7.6)

0.504

2.6 (0.5-14.4)

0.259

2

 

42

52.4% (36.4-68.0)

26.2% (13.9-42.0)

 

7.1% (1.5-19.5)

 

14.3% (5.4-28.5)

 

1.7 (0.6-4.9)

0.312

0.4 (0.1-1.6)

0.193

1.4 (0.4-4.8)

0.574

3

 

52

50.0% (35.8-64.2)

19.2% (9.6-32.5)

 

21.2% (11.1-34.7)

 

9.6% (3.2-21.0)

 

1.4 (0.5-3.8)

0.544

1.5 (0.6-4.1)

0.397

1.0 (0.3-3.6)

0.946

4

 

51

41.2% (27.6-55.8)

27.5% (15.9-41.7)

 

11.8% (4.4-23.9)

 

19.6% (9.8-33.1)

 

2.7 (1.0-7.5)

0.070

0.8 (0.3-2.7)

0.748

2.4 (0.8-7.3)

0.118

5 (most deprived)

 

72

55.6% (43.4-67.3)

16.7% (8.9-27.3)

 

16.7% (8.9-27.3)

 

11.1% (4.9-20.7)

 

Ref

 

Ref

 

Ref

 

School

School A

9

47

42.6% (28.3-57.8)

23.4% (12.3-38.0)

0.396

19.1% (9.1-33.3)

0.467

14.9% (6.2-28.3)

0.777

0.6 (0.2-2.1)

 

1.6 (0.5-5.1)

 

0.8 (0.2-2.8)

 

School B

 

51

49.0% (34.8-63.4)

21.6% (11.3-35.3)

0.282

13.7% (5.7-26.3)

0.296

15.7% (7.0-28.6)

0.663

0.4 (0.1-2.1)

 

2.7 (0.4-17.3)

 

0.7 (0.1-3.7)

 

School C

 

52

42.3% (28.7-56.8)

44.2% (30.5-58.7)

0.307

7.7% (2.1-18.5)

0.199

5.8% (1.2-15.9)

0.069

0.4 (0.1-2.2)

 

0.3 (0.0-2.0)

 

0.1 (0.0-1.2)

 

School D

 

166

51.8% (43.9-59.6)

18.1% (12.5-24.8)

 

15.7% (10.5-22.1)

 

14.5% (9.5-20.7)

 

Ref

 

Ref

 

Ref

 

Parental knowledge of consumption

Yes

3

256

48.5% (42.3-54.7)

21.8% (16.9-27.2)

0.007

16.0% (11.8-21.0)

0.457

13.7% (9.8-18.5)

0.629

Ref

 

Ref

 

Ref

 

No

 

54

48.1% (34.3-62.2)

33.3% (21.1-47.5)

 

7.4% (2.1-17.9)

 

11.1% (4.2-22.6)

 

3.6 (1.4-9.3)

 

0.6 (0.2-2.3)

 

1.4 (0.4-4.8)

Total

  

316

48.4% (42.8-54.1)

23.7% (19.2-28.8)

 

14.6% (10.9-18.9)

 

13.3% (9.7-17.5)

 
  1. P values for the univariate analyses are as follows: gender P = 0.001, age P = 0.081, deprivation P = 0.318, school P = 0.036, parental knowledge p = 0.168. * Provision of alcohol by parents represents the reference category in the outcome variable of the multinomial regression. Ref refers to the reference category of the predictor variable.
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