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Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study
Abstract
Objectives: Health professionals’ food-drug interaction knowledge level is related with efficiency of treatment. Given that, it’s important to measure the knowledge level. This study aims to develop a scale that can measure food-drug interaction knowledge level of health care professionals and increase awareness on this issue.
Methods: A total of 200 individuals (50 from each profession: medical doctor, nurse, dietician and pharmacist) working in Ankara were selected. The scale consists of 25 items and three options for each: “True”, “False” and “I do not know”. In the evaluation, each correct answer equals to 1 (one) point, while the others (wrong and absent) equal to 0 (zero). Content validity and item analysis were conducted for the validity, and Cronbach alpha coefficient was measured.
Results: Consequently, 4 items whose total correlation with the total score less than 0.15 were removed from the scale. Item difficulties in the scale vary between 0.20 and 0.96, and average item difficulty of the scale was found to be 0.61±0.18. The scale was evaluated on the basis of quarter points of 21 items. Accordingly, 25th percentile of 21 items was 5.25, 50th percentile was 10.25, and 75th percentile was 15.75. Score classification less than 5 means “low” knowledge level, between 6 and 11 “intermediate”, between 11 and 15 “good” and between 16 and 21 “very good”.
Conclusions: Hereby, this scale was found to be highly valid and quite reliable to be used in order to determine the food-drug interaction knowledge levels of health care professionals.
Methods: A total of 200 individuals (50 from each profession: medical doctor, nurse, dietician and pharmacist) working in Ankara were selected. The scale consists of 25 items and three options for each: “True”, “False” and “I do not know”. In the evaluation, each correct answer equals to 1 (one) point, while the others (wrong and absent) equal to 0 (zero). Content validity and item analysis were conducted for the validity, and Cronbach alpha coefficient was measured.
Results: Consequently, 4 items whose total correlation with the total score less than 0.15 were removed from the scale. Item difficulties in the scale vary between 0.20 and 0.96, and average item difficulty of the scale was found to be 0.61±0.18. The scale was evaluated on the basis of quarter points of 21 items. Accordingly, 25th percentile of 21 items was 5.25, 50th percentile was 10.25, and 75th percentile was 15.75. Score classification less than 5 means “low” knowledge level, between 6 and 11 “intermediate”, between 11 and 15 “good” and between 16 and 21 “very good”.
Conclusions: Hereby, this scale was found to be highly valid and quite reliable to be used in order to determine the food-drug interaction knowledge levels of health care professionals.
Keywords
Supporting Institution
Bu çalışma hiçbir ticari veya kar amacı gütmeyen kuruluştan ve hibe kurumundan destek almamıştır
References
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- [3] Aydın, B., Gelal, A. Akılcı İlaç Kullanımı: Yaygınlaştırılması ve Tıp Eğitiminin Rolü. 2012. DEÜ Tıp Fakültesi Dergisi, 26(1), 57-63.
- [4] Li, Z., Vachharajani, N. N., Krishna, R. 2002. On the assessment of effects of food on the pharmacokinetics of drugs in early development. Biopharm Drug Dispos, 23(4), 165-171.
- [5] Boullata, J. I. 2010. An Introduction to Drug-Nutrient Interactions. Ss 3-26. Boullata, J. I., Armenti, V. T., ed. 2010. Handbook of Drug-Nutrient Interactions (2nd ed), Humana Press, Totowa, NJ, 821s.
- [6] Boullata, J. I. 2013. Drug and nutrition interactions: not just food for thought. J Clin Pharm Ther, 38(4), 269-271.
- [7] Santos, C.A., Boullata, J. I. 2005. An Approach to Evaluating Drug-Nutrient Interactions. Pharmacotherapy, 25(12), 1789-1800.
- [8] Boullata, J. I., Hudson, L.M. 2012. Drug-nutrient interactions: a broad view with implications for practice. J Acad Nutr Diet, 112(4), 506-517.
Details
Primary Language
English
Subjects
Health Care Administration
Journal Section
Research Article
Publication Date
April 11, 2022
Submission Date
December 8, 2021
Acceptance Date
March 2, 2022
Published in Issue
Year 2022 Volume: 13 Number: 1
APA
Karagöz, M. F., Gezmen Karadağ, M., Yıldıran, H., & Akçil Ok, M. (2022). Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi, 13(1), 48-59. https://doi.org/10.22312/sdusbed.1033924
AMA
1.Karagöz MF, Gezmen Karadağ M, Yıldıran H, Akçil Ok M. Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi. 2022;13(1):48-59. doi:10.22312/sdusbed.1033924
Chicago
Karagöz, Mustafa Fevzi, Makbule Gezmen Karadağ, Hilal Yıldıran, and Mehtap Akçil Ok. 2022. “Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study”. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi 13 (1): 48-59. https://doi.org/10.22312/sdusbed.1033924.
EndNote
Karagöz MF, Gezmen Karadağ M, Yıldıran H, Akçil Ok M (April 1, 2022) Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi 13 1 48–59.
IEEE
[1]M. F. Karagöz, M. Gezmen Karadağ, H. Yıldıran, and M. Akçil Ok, “Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study”, Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi, vol. 13, no. 1, pp. 48–59, Apr. 2022, doi: 10.22312/sdusbed.1033924.
ISNAD
Karagöz, Mustafa Fevzi - Gezmen Karadağ, Makbule - Yıldıran, Hilal - Akçil Ok, Mehtap. “Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study”. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi 13/1 (April 1, 2022): 48-59. https://doi.org/10.22312/sdusbed.1033924.
JAMA
1.Karagöz MF, Gezmen Karadağ M, Yıldıran H, Akçil Ok M. Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi. 2022;13:48–59.
MLA
Karagöz, Mustafa Fevzi, et al. “Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study”. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi, vol. 13, no. 1, Apr. 2022, pp. 48-59, doi:10.22312/sdusbed.1033924.
Vancouver
1.Mustafa Fevzi Karagöz, Makbule Gezmen Karadağ, Hilal Yıldıran, Mehtap Akçil Ok. Developing a Food and Drug Interaction Knowledge Scale for Health Care Professionals: A Validity and Reliability Study. Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi. 2022 Apr. 1;13(1):48-59. doi:10.22312/sdusbed.1033924
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