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Table 2 Bivariate analysis and prevalence of the variables that remained in the final logistic regression model of the students in private high schools (n = 2561).

From: Social factors associated to binge drinking: a cross-sectional survey among Brazilian students in private high schools

Variable

 

Binge

Total

p value

  

No

Yes

  
  

n (wgt%)

95%CI

n (wgt%)

95%CI

  

Gender

Male

709 (43.9)

40.6 - 47.3

482 (55.9)

50.1 - 61.6

1191

0.001

 

Female

968 (56.1)

52.7 - 59.4

423 (44.1)

38.4 - 49.9

1391

 

Monthly Tuition

      

<0.001

 

Up to US$ 190

386 (18.8)

7.4 - 40.0

149 (13.6)

5.1 - 31.5

535

 
 

US$ 191- US$ 260

631 (42.8)

23.6 - 64.4

347 (41.0)

21.9 - 63.3

978

 
 

US$ 261- US$ 480

502 (27.5)

12.8 - 49.4

230 (24.4)

11.2 - 45.2

732

 
 

Over US$ 480

181 (11.0)

3.8 - 27.7

186 (20.9)

7.7 - 45.6

367

 

Family

       

Living with mother

No

75 (4.9)

3.4 - 7.1

75 (9.0)

7.0 - 11.5

150

0.002

 

Yes

1622 (95.1)

92.9 - 96.6

836 (91.0)

88.5 - 93.0

2458

 

10 min talks with parents

      

0.043

 

Never

42 (2.6)

1.8 - 3.9

25 (2.4)

1.5 - 3.9

67

 
 

Sometimes/rarely

427 (23.0)

20.1 - 26.3

258 (28.4)

24.4 - 32.6

685

 
 

Always/often

1226 (74.3)

71.0 - 77.5

625 (69.2)

64.8 - 73.2

1851

 

Parents talk about drugs

      

0.100

 

Never

371 (19.2)

15.8 - 23.1

156 (15.3)

12.7 - 18.2

527

 
 

Sometimes/rarely

586 (34.4)

32.2 - 36.7

324 (32.7)

26.7 - 39.4

910

 
 

Always/often

739 (46.4)

42.0 - 50.9

431 (52.0)

44.4 - 59.6

1170

 

Someone you live with gets drunk

      

<0.001

 

No

1480 (89.2)

87.2 - 90.9

713 (81.6)

78.0 - 84.8

2193

 
 

Yes

186 (10.8)

9.1 - 12.8

174 (18.4)

15.2 - 22.0

360

 

Leisure

       

You went out with friends at night

      

<0.001

 

Almost every day

37 (2.5)

1.7 - 3.8

106 (12.9)

9.3 - 17.5

143

 
 

At least once a week

558 (35.1)

31.6 - 38.8

567 (63.5)

57.5 - 69.1

1125

 
 

1 to 3 times a month

697 (39.7)

36.0 - 43.6

205 (20.5)

17.1 - 24.3

902

 
 

Not even once

395 (22.7)

19.4 - 26.2

30 (3.2)

1.7 - 5.8

425

 

Religiosity

       

You trusted in God

      

<0.001

 

Not at all

125 (7.3)

5.2 - 10.1

103 (10.8)

7.3 - 15.5

228

 
 

A little/sort of

424 (25.0)

22.5 - 27.7

303 (32.5)

28.4 - 37.0

727

 
 

A lot/very much

1140 (67.7)

63.3 - 71.9

502 (56.7)

49.2 - 63.9

1642

 

Religious services

      

<0.001

 

Almost every day

93 (6.3)

4.4 - 8.9

23 (2.6)

1.5 - 4.2

116

 
 

At least once a week

398 (23.3)

19.4 - 27.7

139 (14.3)

10.8 - 18.9

537

 
 

1 to 3 times a month

308 (17.5)

14.5 - 21.1

201 (22.4)

19.2 - 25.9

509

 
 

Not even once

886 (52.9)

47.9 - 57.8

540 (60.7)

54.8 - 66.4

1426

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