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Table 1 Sample characteristics, prevalence and correlates of nonprescribed lifetime use of tranquilizers or sedatives among Brazilian adolescents (n = 18,131)

From: Nonprescribed use of tranquilizers or sedatives by adolescents: a Brazilian national survey

 

Total (n = 18131)

Lifetime use prevalence (n = 1076)

Crude OR (95% CI)

Adjusted OR* (95% CI)

p value

Age (years)

wgt%

wgt% (95% CI)

   

13-15

35.6

4.5 (3.9-5.2)

1.00

1.00

 

16-19

64.4

5.3 (4.8-6.0)

1.18 (0.98-1.41)

1.37 (1.14-1.66)

0.001

Gender

Male

44.7

3.1 (2.6-3.6)

1.00

1.00

 

Female

55.3

6.6 (6.0-7.3)

2.22 (1.83-2.70)

2.19 (1.75-2.75)

<0.001

SES

(lowest) C-E

36.0

3.7 (3.2-4.4)

1.00

1.00

 

B

35.3

5.8 (5.1-6.6)

1.58 (1.27-1.96)

1.36 (1.06-1.75)

0.015

(highest) A

10.4

9.3 (8.0-10.8)

2.61 (2.07-3.30)

1.77 (1.27-2.48)

0.001

Not reported

18.4

3.6 (2.7-4.7)

0.95 (0.69-1.31)

1.06 (0.76-1.49)

0.734

Type of school

Public

78.6

4.2 (3.7-4.7)

1.00

1.00

 

Private

21.4

8.1 (7.4-8.9)

2.02 (1.71-2.38)

1.47 (1.17-1.84)

0.001

Use of tranquilizers or sedatives by family members or friends

No

90.1

3.8 (3.4-4.2)

1.00

1.00

 

Yes

10.0

17.5 (15.3-20.0)

5.43 (4.50-6.54)

4.26 (3.46-5.23)

<0.001

Received a prescription of tranquilizers or sedatives

No

90.0

3.6 (3.3-4.1)

1.00

1.00

 

Yes

2.6

28.8 (23.1-35.1)

10.66 (7.98-14.22)

6.61 (4.87-8.98)

<0.001

Do not remember

7.4

13.5 (11.5-15.7)

4.11 (3.28-5.15)

3.58 (2.77-4.63)

<0.001

Risk perception of nonprescribed tranquilizers or sedatives use

High

81.3

4.9 (4.4-5.4)

1.00

1.00

 

Low

7.2

8.4 (6.5-10.8)

1.79 (1.33-2.40)

1.53 (1.09-2.15)

0.015

Do not know

11.5

4.1 (3.1-5.5)

0.84 (0.61-1.16)

1.07 (0.76-1.50)

0.692

  1. * Adjusted by all variables in the table.