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Table 4 Percentage of correct answers to questions on antibiotic treatment for bacterial infections.

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

   Grade 9 (%) Grade 12
(%)
1st year university (%)  
n Correct answer 100 79 170  
Study question    Mean ± SD a Mean ± SDb Overall p
Antibiotics should be taken with milk F 57 51.8 ± 13.5 59.2 ± 10.1 0.537
Antibiotics do not interact with alcohol F 46 65.5 ± 6.6 75.0 ± 11.3 <0.001
Antibiotics can be taken at different times each day, if the daily doses are taken. F 50 49.5 ± 21.9 76.0 ± 9.9 <0.001
Antibiotic treatment should be stopped as soon as the patient feels better F 57 66.0 ± 20.4 77.7 ± 8.8 <0.001
Remaining antibiotic doses can be saved for use on other occasions F 59 57.5 ± 11.1 79.2 ± 10.7 <0.001
The incorrect use of antibiotics can lead to development of resistant bacteria. T 70 68.0 ± 17.8 77.2 ± 5.3 0.570
  1. SD-Standard deviation; T = true; F = false.
  2. a, mean score from 4 study areas: sciences, humanities, informatics and arts
  3. b, mean score from 4 study areas: biology/geology, nursing, law and engineering