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Table 5 Information about the duration of treatment with medication used during the previous month, according to the type of questionnaire.

From: Effect of questionnaire structure on recall of drug utilization in a population of university students

 

Missing information regarding

duration of treatment, n (%)

Median duration

of treatment (days)

 

Questionnaire

Questionnaire

 

A

B

A

B

Analgesics

9 (8.0)

21 (17.1)

3

2

Antibiotics

2 (5.9)

4 (21.0)

7

7

Antifungals

1 (4.5)

4 (36.4)

14

7

Antiparasitics

2 (15.4)

0 (0.0)

3

3

Antimalarials

0 (0.0)

2 (40.0)

3.5

1

Vitamins

3 (7.9)

7 (25.0)

15

7

Antiasthmatics

0 (0.0)

3 (30.0)

3.5

15

Antihistamines

4 (11.8)

13 (38.2)

4

3

Contraceptives *

2 (14.3)

0 (0.0)

30 †

30 †

Antitussives

0 (0.0)

0 (0.0)

5

10.5

Antacids

1 (5.0)

2 (20.0)

3

4.5

  1. * Information on the use of contraceptives refers only to the female participants; † questionnaire completion examples included oral contraceptives with an exposure period defined as daily, which probably induced respondents to frame a 30-day duration of treatment.