Abstract
BACKGROUND
Medications for the prevention and treatment of cardiovascular disease save lives but adherence is often inadequate. The optimal role for physicians in improving adherence remains unclear.
OBJECTIVE
Using existing evidence, we set the goal of evaluating the physician’s role in improving medication adherence.
DESIGN
We conducted systematic searches of English-language peer-reviewed publications in MEDLINE and EMBASE from 1966 through 12/31/2008.
SUBJECTS AND INTERVENTIONS
We selected randomized controlled trials of interventions to improve adherence to medications used for preventing or treating cardiovascular disease or diabetes.
MAIN MEASURES
Articles were classified as either (1) physician “active”—a physician participated in designing or implementing the intervention; (2) physician “passive”—physicians treating intervention group patients received patient adherence information while physicians treating controls did not; or (3) physicians noninvolved. We also identified studies in which healthcare professionals helped deliver the intervention. We did a meta-analysis of the studies involving healthcare professionals to determine aggregate Cohen’s D effect sizes (ES).
KEY RESULTS
We identified 6,550 articles; 168 were reviewed in full, 82 met inclusion criteria. The majority of all studies (88.9%) showed improved adherence. Physician noninvolved studies were more likely (35.0% of studies) to show a medium or large effect on adherence compared to physician-involved studies (31.3%). Among interventions requiring a healthcare professional, physician-noninvolved interventions were more effective (ES 0.47; 95% CI 0.38–0.56) than physician-involved interventions (ES 0.25; 95% CI 0.21–0.29; p < 0.001). Among physician-involved interventions, physician-passive interventions were marginally more effective (ES 0.29; 95% CI 0.22–0.36) than physician-active interventions (ES 0.23; 95% CI 0.17–0.28; p = 0.2).
CONCLUSIONS
Adherence interventions utilizing non-physician healthcare professionals are effective in improving cardiovascular medication adherence, but further study is needed to identify the optimal role for physicians.
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References
World Health Organization. Adherence to long-term therapies: evidence for action. Geneva, Switzerland: WHO; 2003.
Avorn J, Monette J, Lacour A, et al. Persistence of use of lipid-lowering medications: a cross-national study. JAMA. 1998;279(18):1458–62.
Stuart BC, Simoni-Wastila L, Zhao L, Lloyd JT, JA D. Increased persistency in medication use by U.S. Medicare beneficiaries with diabetes is associated with lower hospitalization rates and cost savings. Diab Care. 2009;32(4):647–9.
Rasmussen JN, Chong A, Alter DA. Relationship between adherence to evidence-based pharmacotherapy and long-term mortality after acute myocardial infarction. JAMA. 2007;297(2):177–86.
Osterberg L, Blaschke T. Adherence to medication. N Engl J Med. 2005;353(5):487–97.
Kripalani S, Yao X, Haynes RB. Interventions to enhance medication adherence in chronic medical conditions: a systematic review. Arch Intern Med. 2007;167(6):540–50.
Haynes RB, Ackloo E, Sahota N, McDonald HP, Yao X. Interventions for enhancing medication adherence. Cochrane Database Syst Rev. 2008(2):CD000011.
Third Report of the National Cholesterol Education Program (NCEP) Expert Panel on Detection, Evaluation, and Treatment of High Blood Cholesterol in Adults (Adult Treatment Panel III) final report. Circulation. 2002;106(25):3143–3421.
Cohen J. Statistical power analysis for the behavioral sciences. New York: Lawrence Erlbaum associates; 1988.
Dunlap W, Cortina J, Vaslow J, Burke M. Meta-analysis of experiments with matched groups or repeated measures designs. Psychol Meth. 1996;1:170–7.
Hedges L, Olkin I. Statistical methods for meta-analysis. San Diego: Academic Press Inc; 1985.
Whitehead A. Meta-analysis of controlled clinical trials, series: statistics. In: Senn S, Barnett V, eds. Practice: Human and Biological Sciences. Published Online: 7 Feb 2003. Accessed at http://www3.interscience.wiley.com/cgi-bin/bookhome/102529859 on March 17, 2010.
Avanzini F, Corsetti A, Maglione T, et al. Simple, shared guidelines raise the quality of antihypertensive treatment in routine care. Am Heart J. 2002;144(4):726–32.
Qureshi NN, Hatcher J, Chaturvedi N, Jafar TH. Effect of general practitioner education on adherence to antihypertensive drugs: cluster randomised controlled trial. Br Med J. 2007;335(7628):1030–3.
Smith DH, Kramer JM, Perrin N, et al. A randomized trial of direct-to-patient communication to enhance adherence to beta-blocker therapy following myocardial infarction. Arch Intern Med. 2008;168(5):477–83. discussion 483; quiz 447.
Rosen MI, Rigsby MO, Salahi JT, Ryan CE, Cramer JA. Electronic monitoring and counseling to improve medication adherence. Behav Res Ther. 2004;42(4):409–22.
Birtwhistle RV, Godwin MS, Delva MD, et al. Randomised equivalence trial comparing three and six months of follow up of patients with hypertension by family practitioners. Br Med J. 2004;328(7433):204–206B.
Hawkins DW, Fiedler FP, Douglas HL, Eschbach RC. Evaluation of a clinical pharmacist in caring for hypertensive and diabetic patients. Am J Hosp Pharm. 1979;36(10):1321–5.
Kelly JM. Sublingual nitroglycerin: improving patient compliance with a demonstration dose. J Am Board Fam Pract. 1988;1(4):251–4.
Hunt JS, Siemienczuk J, Pape G, et al. A Randomized controlled trial of team-based care: impact of physician-pharmacist collaboration on uncontrolled hypertension. J Gen Intern Med. 2008.
Gonzalez-Fernandez RA, Rivera M, Torres D, Quiles J, Jackson A. Usefulness of a systemic hypertension in-hospital educational-program. Am J Cardiol. 1990;65(20):1384–6.
Logan AG, Milne BJ, Flanagan PT, Haynes RB. Clinical effectiveness and cost-effectiveness of monitoring blood-pressure of hypertensive employees at work. Hypertension. 1983;5(6):828–36.
Weymiller AJ, Montori VM, Jones LA, et al. Helping patients with type 2 diabetes mellitus make treatment decisions—Statin choice randomized trial. Arch Intern Med. 2007;167(10):1076–82.
Antonicelli R, Testarmata P, Spazzafumo L, et al. Impact of telemonitoring at home on the management of elderly patients with congestive heart failure. J Telemed Telecare. 2008;14(6):300–5.
Yilmaz MB, Pinar M, Naharci I, et al. Being well-informed about statin is associated with continuous adherence and reaching targets. Cardiovasc Drugs Ther. 2005;19(6):437–40.
Blenkinsopp A, Phelan M, Bourne J, Dakhil N. Extended adherence support by community pharmacists for patients with hypertension: a randomised controlled trial. Int J Pharm Pract. 2000;8(3):165–75.
Bouvy ML, Heerdink ER, Urquhart J, Grobbee DE, Hoe AW, Leufkens HGM. Effect of a pharmacist-led intervention on diuretic compliance in heart failure patients: a randomized controlled study. J Card Fail. 2003;9(5):404–11.
Grant RW, Devita NG, Singer DE, Meigs JB. Improving adherence and reducing medication discrepancies in patients with diabetes. Ann Pharmacother. 2003;37(7–8):962–9.
Jaffray M, Bond C, Watson M, et al. The MEDMAN study: a randomized controlled trial of community pharmacy-led medicines management for patients with coronary heart disease. Fam Pract. 2007;24(2):189–200.
Mehos BM, Saseen JJ, MacLaughlin EJ. Effect of pharmacist intervention and initiation of home blood pressure monitoring in patients with uncontrolled hypertension. Pharmacotherapy. 2000;20(11):1384–9.
Murray MD, Young J, Hoke S, et al. Pharmacist intervention to improve medication adherence in heart failure—a randomized trial. Ann Intern Med. 2007;146(10):714–25.
Odegard PS, Goo A, Hummel J, Williams KL, Gray SL. Caring for poorly controlled diabetes mellitus: a randomized pharmacist intervention. Ann Pharmacother. 2005;39(3):433–40.
Sadik A, Yousif M, McElnay JC. Pharmaceutical care of patients with heart failure. Br J Clin Pharmacol. 2005;60(2):183–93.
Solomon DK, Portner TS, Bass GE, et al. Clinical and economic outcomes in the hypertension and COPD arms of a multicenter outcomes study. J Am Pharm Assoc (Wash). 1998;38(5):574–85.
Sookaneknun P, Richards RM, Sanguansermsri J, Teerasut C. Pharmacist involvement in primary care improves hypertensive patient clinical outcomes. Ann Pharmacother. 2004;38(12):2023–8.
Taylor CT, Byrd DC, Krueger K. Improving primary care in rural Alabama with a pharmacy initiative. Am J Health-Syst Pharm. 2003;60(11):1123–9.
Varma S, McElnay JC, Hughes CM, Passmore AP, Varma M. Pharmaceutical care of patients with congestive heart failure: Interventions and outcomes. Pharmacotherapy. 1999;19(7):860–9.
Park JJ, Kelly P, Carter BL, Burgess PP. Comprehensive pharmaceutical care in the chain setting. J Am Pharm Assoc (Wash). 1996;NS36(7):443–51.
Edworthy SM, Baptie B, Galvin D, et al. Effects of an enhanced secondary prevention program for patients with heart disease: a prospective randomized trial. Can J Cardiol. 2007;23(13):1066–72.
Logan AG, Milne BJ, Achber C, Campbell WP, Haynes RB. Work-site treatment of hypertension by specially trained nurses—controlled trial. Lancet. 1979;2(8153):1175–8.
Rudd P, Miller NH, Kaufman J, et al. Nurse management for hypertension—a systems approach. Am J Hypertens. 2004;17(10):921–7.
Piette JD, Weinberger M, McPhee SJ, Mah CA, Kraemer FB, Crapo LM. Do automated calls with nurse follow-up improve self-care and glycemic control among vulnerable patients with diabetes? Am J Med. 2000;108(1):20–7.
Zarnke KB, Feagan BG, Mahon JL, Feldman RD. A randomized study comparing a patient directed hypertension management strategy with usual office-based care. Am J Hypertens. 1997;10(1):58–67.
Friedman RH, Kazis LE, Jette A, et al. A telecommunications system for monitoring and counseling patients with hypertension—impact on medication adherence and blood pressure control. Am J Hypertens. 1996;9(4):285–92.
Johnson AL, Taylor DW, Sackett DL, Dunnett CW, Shimizu AG. Self-recording of blood pressure in the management of hypertension. Can Med Assoc J. 1978;119(9):1034–9.
Barrios V, Escobar C, Navarro A, Calderon A, Ruilope LM. Antihypertensive effectiveness of lercanidipine administered using an electronic pillbox compared with usual care in a cohort of mild-to-moderately hypertensive patients: The ELECTRA study. Therapy. 2007;4(4):433–40.
Becker LA, Glanz K, Sobel E, Mossey J, Zinn SL, Knott KA. A randomized trial of special packaging of antihypertensive medications. J Fam Pract. 1986;22(4):357–61.
Fulmer TT, Feldman PH, Kim TS, et al. An intervention study to enhance medication compliance in community-dwelling elderly individuals. J Gerontol Nurs. 1999;25(8):6–14.
Guthrie RM. The effects of postal and telephone reminders on compliance with pravastatin therapy in a national registry: results of the first myocardial infarction risk reduction program. Clin Ther. 2001;23(6):970–80.
Hagstrom B, Mattsson B, Rost IM, Gunnarsson RK. What happened to the prescriptions? a single, short, standardized telephone call may increase compliance. Fam Pract. 2004;21(1):46–50.
Johnson SS, Driskell MM, Johnson JL, et al. Transtheoretical model intervention for adherence to lipid-lowering drugs. Dis Manag. 2006;9(2):102–14.
Marquez-Contreras E, Martell-Claros N, Gil-Guillen V, et al. Efficacy of a home blood pressure monitoring programme on therapeutic compliance in hypertension: the EAPACUM-HTA study. J Hypertens. 2006;24(1):169–75.
McKenney JM, Munroe WP, Wright JT. Impact of an electronic medication compliance aid on long-term blood-pressure control. J Clin Pharmacol. 1992;32(3):277–83.
Saunders LD, Irwig LM, Gear JSS, Ramushu DL. A randomized controlled trial of compliance improving strategies in Soweto hypertensives. Med Care. 1991;29(7):669–78.
Schneider PJ, Murphy JE, Pederson CA. Impact of medication packaging on adherence and treatment outcomes in older ambulatory patients. J Am Pharm Assoc. 2008;48(1):58–63.
Simkins CV, Wenzloff NJ. Evaluation of a computerized reminder system in the enhancement of patient medication refill compliance. Drug Intell Clin Pharm. 1986;20(10):799–802.
Skaer TL, Sclar DA, Markowski DJ, Won JK. Effect of value-added utilities on prescription refill compliance and health care expenditures for hypertension. J Hum Hypertens. 1993;7(5):515–8.
Skaer TL, Sclar DA, Markowski DJ, Won JKH. Effect of value-added utilities on prescription refill compliance and Medicaid health-care expenditures—a study of patients with non-insulin-dependent diabetes-mellitus. J Clin Pharm Ther. 1993;18(4):295–9.
Stewart A, Noakes T, Eales C, Shepard K, Becker P, Veriawa Y. Adherence to cardiovascular risk factor modification in patients with hypertension. Cardiovasc J South Afr. 2005;16(2):102–7.
Marquez Contreras E, Vegazo Garcia O, Claros NM, et al. Efficacy of telephone and mail intervention in patient compliance with antihypertensive drugs in hypertension. ETECUM-HTA study. Blood Press. 2005;14(3):151–8.
Santschi V, Wuerzner G, Schneider MP, Bugnon O, Burnier M. Clinical evaluation of IDAS II, a new electronic device enabling drug adherence monitoring. Eur J Clin Pharmacol. 2007;63(12):1179–84.
Ogedegbe G, Chaplin W, Schoenthaler A, et al. A practice-based trial of motivational interviewing and adherence in hypertensive African Americans. Am J Hypertens. 2008;21(10):1137–43.
Eshelman FN, Fitzloff J. Effect of packaging on patient compliance with an antihypertensive medication. Curr Ther Res Clin Exp. 1976;20(2):215–9.
Emmett CL, Montgomery AA, Peters TJ, Fahey T. Three-year follow-up of a factorial randomised controlled trial of two decision aids for newly diagnosed hypertensive patients. Br J Gen Pract. 2005;55(516):551–3.
Takala J. Screening, treatment and adherence to treatment for hypertension. Scand J Prim Health Care. 1983;1(3–4):114–9.
Morisky DE, DeMuth NM, Field-Fass M, Green LW, Levine DM. Evaluation of family health education to build social support for long-term control of high blood pressure. Health Educ Q. 1985;12(1):35–50.
Powell KM, Edgren B. Failure of educational videotapes to improve medication compliance in a health maintenance organization. Am J Health Syst Pharm. 1995;52(20):2196–9.
Polack J, Jorgenson D, Robertson P. Evaluation of different methods of providing medication-related education to patients following myocardial infarction. Canadian Pharmacists Journal. 2008;141(4):241–7.
Bosworth HB, Olsen MK, Neary A, et al. Take Control of Your Blood pressure (TCYB) study: a multifactorial tailored behavioral and educational intervention for achieving blood pressure control. Patient Educ Couns. 2008;70(3):338–47.
Elliott RA, Barber N, Clifford S, Horne R, Hartley E. The cost effectiveness of a telephone-based pharmacy advisory service to improve adherence to newly prescribed medicines. Pharm World Sci. 2008;30(1):17–23.
Faulkner MA, Wadibia EC, Lucas BD, Hilleman DE. Impact of pharmacy counseling on compliance and effectiveness of combination lipid-lowering therapy in patients undergoing coronary artery revascularization: a randomized, controlled trial. Pharmacotherapy. 2000;20(4):410–6.
Goodyer LI, Miskelly F, Milligan P. Does encouraging good compliance improve patients clinical condition in heart-failure. Br J Clin Pract. 1995;49(4):173–6.
Hamet P, Campbell N, Curnew G, Eastwood C, Pradhan A. Avapromise: a randomized clinical trial for increasing adherence through behavioural modification in essential hypertension. Exp Clin Cardiol. 2003;7(4):165–72.
Haynes RB, Sackett DL, Gibson ES, et al. Improvement of medication compliance in uncontrolled hypertension. Lancet. 1976;1(7972):1265–8.
Kirscht JP, Kirscht JL, Rosenstock IM. A test of interventions to increase adherence to hypertensive medical regimens. Health Educ Q. 1981;8(3):261–72.
Lee JK, Grace KA, Taylor AJ. Effect of a pharmacy care program on medication adherence and persistence, blood pressure, and low-density lipoprotein cholesterol—a randomized controlled trial. JAMA- J Am Med Assoc. 2006;296(21):2563–71.
Lee SSC, Cheung PYP, Chow MSS. Benefits of individualized counseling by the pharmacist on the treatment outcomes of hyperlipidemia in Hong Kong. J Clin Pharmacol. 2004;44(6):632–9.
Lopez Cabezas C, Falces Salvador C, Cubi Quadrada D, et al. Randomized clinical trial of a postdischarge pharmaceutical care program vs regular follow-up in patients with heart failure. Farm Hosp. 2006;30(6):328–42.
Mengden T, Vetter H, Tousset E, Uen S. Management of patients with uncontrolled arterial hypertension–the role of electronic compliance monitoring, 24-h ambulatory blood pressure monitoring and Candesartan/HCTZ. BMC Cardiovasc Disord. 2006;6:36.
Nessman DG, Carnahan JE, Nugent CA. Increasing compliance—patient-operated hypertension groups. Arch Intern Med. 1980;140(11):1427–33.
Rich MW, Gray DB, Beckham V, Wittenberg C, Luther P. Effect of a multidisciplinary intervention on medication compliance in elderly patients with congestive heart failure. Am J Med. 1996;101(3):270–6.
Schectman G, Hiatt J, Hartz A. Telephone contacts do not improve adherence to niacin or bile-acid sequestrant therapy. Ann Pharmacother. 1994;28(1):29–35.
Schroeder K, Fahey T, Hollinghurst S, Peters TJ. Nurse-led adherence support in hypertension: a randomized controlled trial. Fam Pract. 2005;22(2):144–51.
Sclar DA, Chin A, Skaer TL, Okamoto MP, Nakahiro RK, Gill MA. Effect of health-education in promoting prescription refill compliance among patients with hypertension. Clin Ther. 1991;13(4):489–95.
Spector R, McGrath P, Uretsky N, Newman R, Cohen P. Does intervention by a nurse improve medication compliance. Arch Intern Med. 1978;138(1):36–40.
Tsuyuki RT, Fradette M, Johnson JA, et al. A multicenter disease management program for hospitalized patients with heart failure. J Card Fail. 2004;10(6):473–80.
Vivian EM. Improving blood pressure control in a pharmacist-managed hypertension clinic. Pharmacotherapy. 2002;22(12):1533–40.
Vrijens B, Belmans A, Matthys K, de Klerk E, Lesaffre E. Effect of intervention through a pharmaceutical care program on patient adherence with prescribed once-daily atorvastatin. Pharmacoepidemiol Drug Saf. 2006;15(2):115–21.
Phumipamorn S, Pongwecharak J, Soorapan S, Pattharachayakul S. Effects of the pharmacist's input on glycaemic control and cardiovascular risks in Muslim diabetes. Prim Care Diabetes. 2008;2(1):31–7.
Riesen WF, Noll G, Dariolo R. Impact of enhanced compliance initiatives on the efficacy of rosuvastatin in reducing low density lipoprotein cholesterol levels in patients with primary hypercholesterolaemia. Swiss Med Wkly. 2008;138(29–30):420–6.
Gabriel M, Gagnon JP, Bryan CK. Improved patients compliance through use of a daily drug reminder chart. Am J Public Health. 1977;67(10):968–9.
Kerr JA. Adherence and self-care. Heart Lung. 1985;14(1):24–31.
Rehder TL, McCoy LK, Blackwell B, Whitehead W, Robinson A. Improving medication compliance by counseling and special prescription container. Am J Hosp Pharm. 1980;37(3):379–85.
Burrelle T. Evaluation of an interdisciplinary compliance service for elderly hypertensives. J Geriatr Drug Ther. 1986;1(2):23–51.
Acknowledgements and Conflicts of Interest Disclosure
This work was supported by a research grant from CVS Caremark. All data analysis and evaluation took place at Brigham and Women’s Hospital. CVS Caremark did not play a role in the design and conduct of the study, the collection, management, analysis, or interpretation of the data, the preparation, review or approval of the manuscript. Josh Liberman and Troy Brennan, both co-authors, are employees of CVS Caremark. Dr. Shrank is supported by a career development award from the National Heart, Lung and Blood Institute (HL-090505). Dr. Brookhart is supported by a career development award from the National Institute of Health (AG-027400). Dr. Cutrona has had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
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At the 32nd annual national meeting of the Society of General Internal Medicine on May 14, 2009, Dr. Cutrona presented findings from this paper as a nominee for Milton W. Hamolsky Award.
This work was supported by a research grant from CVS Caremark. Josh Liberman and Troy Brennan, both co-authors, are employees of CVS Caremark. All data analysis and evaluation took place at Brigham and Women’s Hospital. Dr. Shrank is supported by a career development award from the National Heart, Lung and Blood Institute (HL-090505). Dr. Brookhart is supported by a career development award from the National Institute of Health (AG-027400).
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Table 1
Physician-Active Adherence Interventions (DOC 55 kb)
Table 2
Physician-Passive Adherence Interventions (DOC 67 kb)
Table 3
Physician-Noninvolved Adherence Interventions: Reminder/Reinforcement, Behavioral and Educational (DOC 72 kb)
Table 4
Physician-Noninvolved Adherence Interventions: Complex/Combination Interventions (DOC 71 kb)
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Cutrona, S.L., Choudhry, N.K., Stedman, M. et al. Physician Effectiveness in Interventions to Improve Cardiovascular Medication Adherence: A Systematic Review. J GEN INTERN MED 25, 1090–1096 (2010). https://doi.org/10.1007/s11606-010-1387-9
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DOI: https://doi.org/10.1007/s11606-010-1387-9