Journal of Pharmaceutical and Biomedical Sciences

Development of Knowledge of Anticoagulant Questionnaire: A Narrative Literature Review

Sahimi Mohamed, Tariq Abdul Razak, Rosnani Hashim

Abstract


Background In almost a decade, no new instrument has been developed to assess the knowledge of anticoagulant (KAC) since the validation of knowledge of anticoagulant questionnaire (KAC-Q). Therefore, this study aimed to develop a new instrument to measure KAC among the Malaysian population.
Methods The items for the new KAC-Q were developed based on the narrative literature review and focus group discussion. The Delphi Method was used to assess the content validity of the new KAC-Q. Fifteen experts were involved in three phases of the Delphi survey. The face validity was examined to ensure that the items in the questionnaire were understood by the targeted patients.
Results A total of 37 articles were found to be related to KAC. Almost 100 questions were compiled and categorized into nine domains. After three phases of the Delphi survey, 71 questions were deleted due to similar meaning, irrelevant and unsuitable to be used among the Malaysian population. Of the 29 questions retained, one question was deleted after the face validity test.
Conclusion The completeness and relevance of the KAC-Q as well as the meaning of each individual question were assessed through the content and face validity. With a good structured and adequate information, these 28 KAC-Q questions were considered to have good content and face validity. However, further psychometric testing is needed to ensure that KAC-Q is reliable and valid to aid health care providers in determining patients’ anticoagulant knowledge in targeted populations.

Keywords


anticoagulant, content validity, development, knowledge

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References


Holbrook A, Schulman S, Witt DM, Vandvik PO, Fish J, Kovacs MJ. Evidence-based management of anticoagulant therapy: Antithrombotic therapy and prevention of thrombosis, 9th ed: American college of chest physicians evidence-based clinical practice guidelines. Chest J. 2012;141: suppl2:e152S–84S.

Brown TM, Siu K, Walker D, Pladevall-Vila M, Sander S, Mordin M. Development of a conceptual model of adherence to oral anticoagulants to reduce risk of stroke in patients with atrial fibrillation. J Manag Care Pharm. 2012;18:351–362.

Kneeland PP, Fang MC. Current issues in patient adherence and persistence: focus on anticoagulants for the treatment and prevention of thromboembolism. Patient Prefer Adherence.2010;24:51–60.

Ogilvie IM, Newton N, Welner SA, Cowell W, Lip GY. Underuse of oral anticoagulants in atrial fibrillation: a systematic review. Am J Med. 2010;123:638–645.

Birman-Deych E, Radford MJ, Nilasena DS, Gage BF. Use and effectiveness of warfarin in medicare beneficiaries with atrial fibrillation. Stroke. 2006;37:1070–1074.

Nasser S, Mullan J, Bajorek B. Challenges of older patients’ knowledge about warfarin therapy. J Prim Care Community Health. 2012;3:65–74.

Matalqah LM, Radaideh KM, Sulaiman SAS, Hassali MA, Abdul Kader MAS. Relationship between patients’ warfarin knowledge and anticoagulation control: results of a validated tool in Malaysia. J Pharm Biomed Sci. 2013;30:967–974.

Van Damme S, Van Deyk K, Budts W, Verhamme P, Moons P. Patient knowledge of and adherence to oral anticoagulation therapy after mechanical heart-valve replacement for congenital or acquired valve defects. Hear Lung J Acute Crit Care. 2011;40:139–146.

Farsalinos k, Trikilis I, Spyrou A, Savvopoulou M, Kostopoulou A, Livanis E, et al. Comparison of knowledge level about anticoagulation therapy between atrial fibrillation and prosthetic heart valve patients and its’ relation to INR goal attainment. J Am Coll Cardiol. 2012;59:E1701.

Tang EO, Lai CS, Lee KK, Wong RS, Cheng G, Chan TY. Relationship between patients ‘warfarin knowledge and anticoagulation control. Ann Pharmacother. 2003;37:34–39.

Barcelona D, Marongiu F, Contu P. Patient education and oral anticoagulant therapy. Haematol J. 2002;87:1081–1086.

Nutescu EA, Wittkowsky AK, Burnett A, Merli GJ, Ansell JE, Garcia DA. Delivery of optimized inpatient anticoagulation therapy: consensus statement from the anticoagulation forum. Ann Pharmacother. 2013;47:714–724.

Clarkesmith DE, Pattison HM, Lip GY, Lane DA. Educational intervention improves anticoagulation control in atrial fibrillation patients: The TREAT randomised trial. PLoS One. 2013;8:e74037.

Clark CM, Bayley EW. Evaluation of the use of programmed instruction for patients maintained on Warfarin therapy. Am J Public Health. 1972;62:1135–1139.

El-naby AGA, Hashem HY, Ismail GM. Evaluation of a designed warfarin educational program on patients ’ knowledge and incidence of side effects. Glob J Pharmacol. 2014;8:592–600.

Wong PY, Schulman S, Woodworth S, Holbrook A. Supplemental patient education for patients taking oral anticoagulants: systematic review and meta-analysis. J Thromb Haemost.2013;11:491–502.

Deck ED. The effect of an educational intervention on oral anticoagulation therapy knowledge in primary care. [dissertation]. Evidence-based practice project reports. Paper 72. 2015.

Matalaqah LM, Radaideh K, Hassali MA. An instrument to measure anticoagulation knowledge among Malaysian community: A translation and validation study of the Oral Anticoagulation Knowledge (OAK) Test. Asian J Biomed Pharm Sci. 2013;3: 30–37.

Baker JW, Pierce KL, Ryals CA. INR goal attainment and oral anticoagulation knowledge of patients enrolled in an anticoagulation clinic in a Veterans Affairs medical center. J Manag Care Pharm. 2011;17:133–142.

Wofford JL, Wells MD, Singh S. Best strategies for patient education about anticoagulation with warfarin: a systematic review. BMC Health Serv Res. 2008;8:40.

Zeolla MM, Brodeur MR, Dominelli A. Haines ST, Allie ND. Development and validation of an instrument to determine patient knowledge: the oral anticoagulation knowledge test. Ann Pharmacother. 2006;40:633–638.

Briggs AL, Jackson TR, Bruce S, Shapiro NL. The development and performance validation of a tool to assess patient anticoagulation knowledge. Res Social Adm Pharm. 2005;1:40–59.

Taylor FC, Ramsay ME, Tan G, Gabbay J, Cohen H. Evaluation of patients’ knowledge

about anticoagulant treatment. Qual Heal Care. 1994;3:79–85.

Smith M. B, Christensen N, Wang S, Strohecker J, Day JD, Weiss JP, et al. Warfarin knowledge in patients with atrial fibrillation: implications for safety, efficacy, and education strategies. Cardiology. 2010;116:61–69.

Yahaya AH, Hassali MA, Awaisu A, Shafie AA. Factors associated with warfarin therapy knowledge and anticoagulation control among patients attending a Warfarin Clinic in Malaysia. J Clin Diagnostic Res. 2009;3:1663–1670.

Lip GY, Lane DA, Ponsford J, Shelley A, Sirpal A. Patient knowledge and perceptions of atrial fibrillation and anticoagulant therapy: effects of an educational intervention programme. The West Birmingham Atrial Fibrillation Project. Int J Cardiol. 2006;110:354–358.

Nadar S, Begum N, Kaur B, Sandhu S, Lip GY. Patients’ understanding of anticoagulant therapy in a multiethnic population. J R Soc Med. 2003;96:175–179.

St-Louis L, Robichaud-Ekstrand S. Knowledge level and coping strategies according to coagulation levels in older persons with atrial fibrillation. Nurs Health Sci. 2003;5:67–75.

Rocha HT, Rabelo ER, Aliti G, de Souza EN. Knowledge of patients with mechanical valve prostheses concerning

chronic oral anticoagulant therapy. Rev Lat Am Enfermagem. 2010;18:696–702.

Janoly-Duménil A, Bourne C, Loiseau K, Luauté J, Sancho PO, Ciancia S, et al. Oral anticoagulant treatment - evaluating the knowledge of patients admitted in physical medicine and rehabilitation units. Ann Phys Rehabil Med. 2011;54:172–180.

Wang Y, Kong MC, Lee LH, Ng HJ, Ko Y. Knowledge, satisfaction, and concerns regarding warfarin therapy and their association with warfarin adherence and anticoagulation control. Thromb Res. 2014;133:550–554.

Rewiuk K, Bednarz S, Faryan P, Grodzicki T. Knowledge of antithrombotic prophylaxis among patients with atrial fibrillation. Cardiol J. 2007;14:44–49.

Davis NJ, Billett HH, Cohen HW, Arnsten JH. Impact of adherence, knowledge, and quality of life on anticoagulation control. Ann Pharmacother. 2005;39:632–636.

Collins S, Barber A, Sahm LJ. Pharmacist’s counselling improves patient knowledge regarding warfarin, irrespective of health literacy level. J Pharm. 2014;2:114–123.

Voller H, Dovifat C, Glatz J, Körtke H, Taborski U, Wegscheider K. Self management of oral anticoagulation with the IN Ratio system: Impact of a structured teaching program on patient’s knowledge of medical background and procedures. Eur J Cardiovasc Prev Rehabil. 2004;11:442–447.

Hu A, Chow C, Dao D, Errett L, Keith M. Factors influencing patient knowledge of warfarin therapy after mechanical heart valve replacement. J Cardiovasc Nurs. 2006;21:169–175.

Hasan SS, Shamala R, Syed IA, Basariah N, Chong DW, Mei TK, et al. Factors affecting warfarin-related knowledge and INR control of patients attending physician- and pharmacist-managed anticoagulation clinics. J Pharm Pract. 2011;24:485–493.

Chenot JF, Hua TD, Abu Abed M, Schneider-Rudt H, Friede T, Schneider S, et al. Safety relevant knowledge of orally anticoagulated patients without self-monitoring: a baseline survey in primary care. BMC Fam Pract. 2014;15:104.

Khudair IF, Hanssens YI. Evaluation of patients’ knowledge on warfarin in outpatient anticoagulation clinics in a teaching hospital in Qatar. Saudi Med J . 2010;3:672–677.

Bounda GA, Ngarambe C, Ge WH, Yu F. Assessment and evaluation efficacy of a clinical pharmacist ? led inpatient warfarin knowledge education program and follow up at a Chinese tertiary referral

teaching hospital. Arch Pharm Pract. 2013;4:168.

Fairbairn-Smith L, Cope W, Robinson B, Kamali F, Wynne H. Effect of provision of the NHSNPSA oral anticoagulant therapy patient information pack upon patients’ knowledge and anticoagulant control. J Thromb Haemost. 2011;9:231–233.

Lakshmi R, James E, Kirthivasan R. Study on impact of clinical pharmacist’s interventions in the optimal use of oral anticoagulants in stroke patients. Indian J Pharm Sci. 2013;75:53–59.

Green RA. The Delphi technique in educational. SAGE Open. 2014:1–8.

Hsu C, Sandford B. The delphi technique: making sense of consensus. Pract Assessment Res Eval. 2007;12:1–8.

Terwee CB, Bot SD, De Boer MR, van der Windt DA, Knol DL, Dekker J, et al. Quality criteria were proposed for measurement properties of health status questionnaires. J Clin Epidemiol. 2007;60:34–42.

Guyatt GH, Akl EA, Crowther M, Gutterman DD, Schuünemann HJ; American College of Chest Physicians Antithrombotic Therapy and Prevention of Thrombosis Panel. Executive summary: Antithrombotic therapy and prevention of thrombosis, 9th ed: American college of chest physicians evidence-based clinical practice guidelines. Chest. 2012;141:7S–47S.

Bungard TJ, Yakiwchuk E, Foisy M. Drug interactions involving warfarin: Practice tool and practical management tips. Clin Pharm J. 2011;144:21–25.

Lim VK, Cheong YM, Suleiman AB. Pattern of antibiotic usage in hospitals in Malaysia. Singapore Med J. 1993;34:525–528.

Lim VKE, Cheong YM, Suleiman AB. Knowledge of antibiotics and antibiotics resistance patterns among malaysian doctors. J Infect Dis Antimicrob Agents. 1995;12:123–128.

Lim KK, Teh CC. A cross sectional study of public knowledge and attitude towards antibiotics in Putrajaya, Malaysia. South Med Rev. 2012;5:26–33.

Fiumara K, Goldhaber SZ. A patient’s guide to taking coumadin/ warfarin. Circulation. 2009;119:e220–e222.

Chua SS, Sabki NH. Use of nonprescription medications by the general public in the klang valley. J Appl Pharm Sci. 2011;1:93–98.

Hassali MA, Mohamad Yahya MH, Shafie AA, Saleem F, Chua GN, Aljadhey H. Patterns and predictors of non-prescription medicine use among Malaysian Pharmacy patrons: A national cross sectional study. PLoS One. 2013;8: e59231.

Mathialagan A, Kaur S. Community perception on the use of over the counter (OTC) medications in Malaysia. Int J Sci Eng Res. 2012;3:1–4.

Smith JK, Aljazairi A, Fuller SH. INR elevation associated with diarrhea in a patient receiving warfarin. Ann Pharmacother. 1999;33:301–304.

Hirsh J, Fuster V, Ansell J, Halperin JL; American Heart Association/American College of Cardiology Foundation. American Heart Association / American College of Cardiology foundation guide to warfarin therapy. J Am Coll Cardiol. 2003; 41:1633–1652.

Assessing Readability Level Reading Formulas. [Online]. Accessed on 20th Jun 2016. www.ihs.gov/healthcommunications/documents/toolkit/Tool13.pdf.Kazi AM, Khalid W. Questionnaire designing and validation. J Pak Med Assoc. 2012;62:514–516.

McDonald JA, Burnett N, Coronado VG, Johnson RL. Questionnaire design reproductive health epidemiology series–module 4. Department of health and human services, centers for disease

control and prevention, Atlanta, Georgia, USA; 2003.


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