Table 1 Test–retest reliability assessment of Knowledge and Attitudes items of the questionnaire.

From: Design, reliability and construct validity of a Knowledge, Attitude and Practice questionnaire on personal use of antibiotics in Spain

Item

N

ICC (95% CI)

Q1. Antibiotics are effective against viruses

137

0.82 (0.75, 0.87)

Q2. When I get a cold, I take antibiotics to help me feel better faster

140

0.62 (0.48, 0.73)

Q3. If I feel better after a few days, I sometimes stop taking my antibiotics before completing the course of treatment

139

0.40 (0.17, 0.57)

Q4. I expect my doctor to prescribe antibiotics if I suffer from common cold or flu symptoms

138

0.68 (0.55, 0.77)

Q5. It is good to be able to get antibiotics from relatives or friends without having to see a medical doctor

140

0.06 (− 0.32, 0.32)

Q6. When I have a sore throat, I prefer to use an antibiotic

138

0.62 (0.46, 0.73)

Q7. Each type of infection needs a different antibiotic

138

0.67 (0.54, 0.77)

Q8. Antibiotics can kill the bacteria that normally live on the skin and in the gut

130

0.67 (0.54, 0.77)

Q9. If I feel side effects during a course of treatment of antibiotics, I should stop taking them as soon as possible

136

0.60 (0.44, 0.72)

Q10. I take the antibiotics according to the doctor’s instructions

139

0.36 (0.10, 0.54)

Q11. If antibiotics are consumed in excess, they will not work when they are really needed

137

0.19 (0.14, 0.42)

Q12. I prefer to keep antibiotics at home in case there is a need for them later

139

0.58 (0.41, 0.70)

Q13. I trust the doctor’s decision if s/he decides to prescribe or not prescribe antibiotics

138

0.50 (0.29, 0.64)

Q14. If I believe that I need an antibiotic and the doctor did not prescribe it, I will get it at the pharmacy without a prescription

138

0.50 (0.29, 0.64)

Q15. Doctors often explain clearly to the patient the reasons for prescribing or not prescribing antibiotics

134

0.70 (0.58, 0.79)

Q16. Doctors often explain clearly to the patient the instructions for the use of antibiotics

138

0.65 (0.51, 0.75)

Q17. When you buy antibiotics, the pharmacist tells you about the importance of correct therapeutic compliance/adherence

139

0.63 (0.48, 0.74)

  1. N number of participants who answered the corresponding item in the two-time occasions, ICC intra-class correlation coefficient.