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Table 2 Percentage of positive answers to question on antibiotic use against bacteria and other organisms.

From: Portuguese students' knowledge of antibiotics: a cross-sectional study of secondary school and university students in Braga

Options

n

Antibiotics are effective against bacteria only *

(%)

Antibiotics are effective against bacteria and other organisms (%)

Antibiotics are effective against other organisms (%)

P value

9 th grade

100

4

65

31

 

12 th grade

     

Sciences

39

28

46

26

 

Humanities

7

14

14

72

 

Informatics

19

0

74

26

 

Arts

14

14

65

21

 

Mean ± SD

 

14 ± 11.4

49.8 ± 26.5

36.3 ± 24

0.066

1 st year of university

     

Biology/Geology

14

29

57

14

 

Nursing

65

60

34

6

 

Law

49

16

57

27

 

Engineering

42

14

62

24

 

Mean ± SD

 

29.8 ± 21.2

52.5 ± 12.6

17.8 ± 9.6

<0.001

  1. SD-Standard deviation, *- Correct answer