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Adverse Outcomes of Polypharmacy in Older People: Systematic Review of Reviews
Open accessAbstract
OBJECTIVE: Polypharmacy is widespread among older people, but the adverse outcomes associated with it are unclear. We aim to synthesize current evidence on the adverse health, social, medicines management, and health care utilization outcomes of polypharmacy in older people. DESIGN: A systematic review, of systematic reviews and meta-analyses of observational studies, was conducted. Eleven bibliographic databases were searched from 1990 to February 2018. Quality was assessed using AMSTAR (A Measurement Tool to Assess Systematic Reviews). SETTING AND PARTICIPANTS: Older people in any health care setting, residential setting, or country. RESULTS: Twenty-six reviews reporting on 230 unique studies were included. Almost all reviews operationalized polypharmacy as medication count, and few examined medication classes or disease states within this. Evidence for an association between polypharmacy and many adverse outcomes, including adverse drug events and disability, was conflicting. The most consistent evidence was found for hospitalization and inappropriate prescribing. No research had explored polypharmacy in the very old (aged ≥85 years), or examined the potential social consequences associated with medication use, such as loneliness and isolation. CONCLUSIONS AND IMPLICATIONS: The literature examining the adverse outcomes of polypharmacy in older people is complex, extensive, and conflicting. Until polypharmacy is operationalized in a more clinically relevant manner, the adverse outcomes associated with it will not be fully understood. Future studies should work toward this approach in the face of rising multimorbidity and population aging.
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Barnett, K., Mercer, S. W., Norbury, M., Watt, G., Wyke, S., & Guthrie, B. (2012) · The Lancet · doi:10.1016/s0140-6736(12)60240-2 · Cited by 6,972
Development of AMSTAR: A measurement tool to assess the methodological quality of systematic reviews
Shea, B. J., Grimshaw, J. M., Wells, G. A., Boers, M., Andersson, N., Hamel, C., Porter, A. C., Tugwell, P., Moher, D., & Bouter, L. M. (2007) · BMC Medical Research Methodology · doi:10.1186/1471-2288-7-10 · Cited by 4,374
What is polypharmacy? A systematic review of definitions
Masnoon, N., Shakib, S., Kalisch-Ellett, L., & Caughey, G. E. (2017) · BMC Geriatrics · doi:10.1186/s12877-017-0621-2 · Cited by 3,293
Aromataris, E., Fernandez, R., Godfrey, C. M., Holly, C., Khalil, H., & Tungpunkom, P. (2015) · International Journal of Evidence-Based Healthcare · doi:10.1097/xeb.0000000000000055 · Cited by 2,587
The role of google scholar in evidence reviews and its applicability to grey literature searching
Haddaway, N. R., Collins, A. M., Coughlin, D., & Kirk, S. (2015) · PLOS ONE · doi:10.1371/journal.pone.0138237 · Cited by 2,387
Popay, J., Roberts, H., Sowden, A., Petticrew, M., Arai, L., Rodgers, M., Britten, N., Roen, K., & Duffy, S. (2006) · Lancaster University · doi:10.13140/2.1.1018.4643 · Cited by 2,070
Clinical consequences of polypharmacy in elderly
Maher, R. L., Hanlon, J., & Hajjar, E. R. (2014) · Expert Opinion on Drug Safety · doi:10.1517/14740338.2013.827660 · Cited by 1,938
Inouye, S. K., Studenski, S., Tinetti, M. E., & Kuchel, G. A. (2007) · Journal of the American Geriatrics Society · doi:10.1111/j.1532-5415.2007.01156.x · Cited by 1,874
Shea, B. J., Hamel, C., Wells, G. A., Bouter, L. M., Kristjansson, E., Grimshaw, J., Henry, D. A., & Boers, M. (2009) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2008.10.009 · Cited by 1,755
Systematic review finds overlapping reviews were not mentioned in every other overview
Pieper, D., Antoine, S.-L., Mathes, T., Neugebauer, E. A. M., & Eikermann, M. (2014) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2013.11.007 · Cited by 1,318
Polypharmacy in elderly patients
Hajjar, E. R., Cafiero, A. C., & Hanlon, J. T. (2007) · The American Journal of Geriatric Pharmacotherapy · doi:10.1016/j.amjopharm.2007.12.002 · Cited by 1,265
Methodology in conducting a systematic review of systematic reviews of healthcare interventions
Smith, V., Devane, D., Begley, C. M., & Clarke, M. (2011) · BMC Medical Research Methodology · doi:10.1186/1471-2288-11-15 · Cited by 1,227
Gnjidic, D., Hilmer, S. N., Blyth, F. M., Naganathan, V., Waite, L., Seibel, M. J., McLachlan, A. J., Cumming, R. G., Handelsman, D. J., & Le Couteur, D. G. (2012) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2012.02.018 · Cited by 1,176
Prediction of institutionalization in the elderly. A systematic review
Luppa, M., Luck, T., Weyerer, S., Konig, H.-H., Brahler, E., & Riedel-Heller, S. G. (2010) · Age and Ageing · doi:10.1093/ageing/afp202 · Cited by 902
The rising tide of polypharmacy and drug-drug interactions: population database analysis 1995–2010
Guthrie, B., Makubate, B., Hernandez-Santiago, V., & Dreischulte, T. (2015) · BMC Medicine · doi:10.1186/s12916-015-0322-7 · Cited by 838
Smith, S. M., Soubhi, H., Fortin, M., Hudon, C., & O'Dowd, T. (2012) · BMJ · doi:10.1136/bmj.e5205 · Cited by 740
Health Outcomes Associated with Polypharmacy in Community‐Dwelling Older Adults: A Systematic Review
Fried, T. R., O'Leary, J., Towle, V., Goldstein, M. K., Trentalange, M., & Martin, D. K. (2014) · Journal of the American Geriatrics Society · doi:10.1111/jgs.13153 · Cited by 721
Gellad, W. F., Grenard, J. L., & Marcum, Z. A. (2011) · The American Journal of Geriatric Pharmacotherapy · doi:10.1016/j.amjopharm.2011.02.004 · Cited by 692
Hughes, L. D., McMurdo, M. E. T., & Guthrie, B. (2013) · Age and Ageing · doi:10.1093/ageing/afs100 · Cited by 506
Ahmed, S., Leurent, B., & Sampson, E. L. (2014) · Age and Ageing · doi:10.1093/ageing/afu022 · Cited by 456
Social Isolation and Loneliness in Old Age: Review and Model Refinement
Wenger, G. C., Davies, R., Shahtahmasebi, S., & Scott, A. (1996) · Ageing and Society · doi:10.1017/s0144686x00003457 · Cited by 439
The definition of disability: what is in a name?
Leonardi, M., Bickenbach, J., Ustun, T. B., Kostanjsek, N., & Chatterji, S. (2006) · The Lancet · doi:10.1016/s0140-6736(06)69498-1 · Cited by 419
The harvest plot: A method for synthesising evidence about the differential effects of interventions
Ogilvie, D., Fayter, D., Petticrew, M., Sowden, A., Thomas, S., Whitehead, M., & Worthy, G. (2008) · BMC Medical Research Methodology · doi:10.1186/1471-2288-8-8 · Cited by 418
Jokanovic, N., Tan, E. C. K., Dooley, M. J., Kirkpatrick, C. M., & Bell, J. S. (2015) · Journal of the American Medical Directors Association · doi:10.1016/j.jamda.2015.03.003 · Cited by 415
Risk Factors for Adverse Drug Events Among Nursing Home Residents
Field, T. S., Gurwitz, J. H., Avorn, J., McCormick, D., Jain, S., Eckler, M., Benser, M., & Bates, D. W. (2001) · Archives of Internal Medicine · doi:10.1001/archinte.161.13.1629 · Cited by 411
The effectiveness of interventions to change six health behaviours: a review of reviews
Jepson, R. G., Harris, F. M., Platt, S., & Tannahill, C. (2010) · BMC Public Health · doi:10.1186/1471-2458-10-538 · Cited by 406
Health and disease in 85 year olds: baseline findings from the Newcastle 85+ cohort study
Collerton, J., Davies, K., Jagger, C., Kingston, A., Bond, J., Eccles, M. P., Robinson, L. A., Martin-Ruiz, C., von Zglinicki, T., James, O. F. W., et al. (2009) · BMJ · doi:10.1136/bmj.b4904 · Cited by 386
Self-citationHospital admissions due to adverse drug reactions in the elderly. A meta-analysis
Oscanoa, T. J., Lizaraso, F., & Carvajal, A. (2017) · European Journal of Clinical Pharmacology · doi:10.1007/s00228-017-2225-3 · Cited by 382
The Effects of Polypharmacy in Older Adults
Hilmer, S., & Gnjidic, D. (2009) · Clinical Pharmacology & Therapeutics · doi:10.1038/clpt.2008.224 · Cited by 362
Ruxton, K., Woodman, R. J., & Mangoni, A. A. (2015) · British Journal of Clinical Pharmacology · doi:10.1111/bcp.12617 · Cited by 360
Association between polypharmacy and death: A systematic review and meta-analysis
Leelakanok, N., Holcombe, A. L., Lund, B. C., Gu, X., & Schweizer, M. L. (2017) · Journal of the American Pharmacists Association · doi:10.1016/j.japh.2017.06.002 · Cited by 355
Campbell, S. E., Seymour, D. G., & Primrose, W. R. (2004) · Age and Ageing · doi:10.1093/ageing/afh036 · Cited by 354
Fall-Risk-Increasing Drugs: A Systematic Review and Meta-analysis: III. Others
Seppala, L. J., van de Glind, E. M. M., Daams, J. G., Ploegmakers, K. J., de Vries, M., Wermelink, A. M. A. T., van der Velde, N., Blain, H., Bousquet, J., Bucht, G., et al. (2018) · Journal of the American Medical Directors Association · doi:10.1016/j.jamda.2017.12.099 · Cited by 333
Systematic review adherence to methodological or reporting quality
Pussegoda, K., Turner, L., Garritty, C., Mayhew, A., Skidmore, B., Stevens, A., Boutron, I., Sarkis-Onofre, R., Bjerre, L. M., Hróbjartsson, A., et al. (2017) · Systematic Reviews · doi:10.1186/s13643-017-0527-2 · Cited by 322
Tommelein, E., Mehuys, E., Petrovic, M., Somers, A., Colin, P., & Boussery, K. (2015) · European Journal of Clinical Pharmacology · doi:10.1007/s00228-015-1954-4 · Cited by 292
Health Outcomes and Polypharmacy in Elderly Individuals
Frazier, S. C. (2005) · Journal of Gerontological Nursing · doi:10.3928/0098-9134-20050901-04 · Cited by 268
Predictors of Functional Decline in Hospitalized Elderly Patients: A Systematic Review
McCusker, J., Kakuma, R., & Abrahamowicz, M. (2002) · The Journals of Gerontology Series A: Biological Sciences and Medical Sciences · doi:10.1093/gerona/57.9.m569 · Cited by 263
Challenges and Enablers of Deprescribing: A General Practitioner Perspective
Ailabouni, N. J., Nishtala, P. S., Mangin, D., & Tordoff, J. M. (2016) · PLOS ONE · doi:10.1371/journal.pone.0151066 · Cited by 209
Oxford Textbook of Geriatric Medicine
(2017) · doi:10.1093/med/9780198701590.001.0001 · Cited by 200
Pollock, M., Fernandes, R. M., Becker, L. A., Featherstone, R., & Hartling, L. (2016) · Systematic Reviews · doi:10.1186/s13643-016-0367-5 · Cited by 195
Lunny, C., Brennan, S. E., McDonald, S., & McKenzie, J. E. (2017) · Systematic Reviews · doi:10.1186/s13643-017-0617-1 · Cited by 184
Systematic review of falls in older adults with cancer
Wildes, T. M., Dua, P., Fowler, S. A., Miller, J. P., Carpenter, C. R., Avidan, M. S., & Stark, S. (2015) · Journal of Geriatric Oncology · doi:10.1016/j.jgo.2014.10.003 · Cited by 166
Oh, E. S., Li, M., Fafowora, T. M., Inouye, S. K., Chen, C. H., Rosman, L. M., Lyketsos, C. G., Sieber, F. E., & Puhan, M. A. (2015) · International Journal of Geriatric Psychiatry · doi:10.1002/gps.4233 · Cited by 160
Tan, E. C. K., Lexomboon, D., Sandborgh‐Englund, G., Haasum, Y., & Johnell, K. (2017) · Journal of the American Geriatrics Society · doi:10.1111/jgs.15151 · Cited by 157
Storms, H., Marquet, K., Aertgeerts, B., & Claes, N. (2017) · European Journal of General Practice · doi:10.1080/13814788.2017.1288211 · Cited by 149
Dwyer, R., Stoelwinder, J., Gabbe, B. J., & Lowthian, J. A. (2015) · Journal of the American Medical Directors Association · doi:10.1016/j.jamda.2015.03.007 · Cited by 142
Wang, S., Shamliyan, T., Talley, K. M., Ramakrishnan, R., & Kane, R. L. (2013) · Archives of Gerontology and Geriatrics · doi:10.1016/j.archger.2013.03.007 · Cited by 137
Overviews of systematic reviews: great promise, greater challenge
McKenzie, J. E., & Brennan, S. E. (2017) · Systematic Reviews · doi:10.1186/s13643-017-0582-8 · Cited by 134
Selecting and implementing overview methods: implications from five exemplar overviews
Pollock, A., Campbell, P., Brunton, G., Hunt, H., & Estcourt, L. (2017) · Systematic Reviews · doi:10.1186/s13643-017-0534-3 · Cited by 134
Bonaga, B., Sánchez‐Jurado, P. M., Martínez-Reig, M., Ariza‐Zafra, G., Rodríguez‐Mañas, L., Gnjidic, D., Salvador, T., & Abizanda, P. (2017) · Journal of the American Medical Directors Association · doi:10.1016/j.jamda.2017.07.008 · Cited by 131
Systematic review on factors associated with medication non-adherence in Parkinson's disease
Daley, D. J., Myint, P. K., Gray, R. J., & Deane, K. H. O. (2012) · Parkinsonism & Related Disorders · doi:10.1016/j.parkreldis.2012.09.004 · Cited by 124
Tesfaye, W. H., Castelino, R. L., Wimmer, B. C., & Zaidi, S. T. R. (2017) · International Journal of Clinical Practice · doi:10.1111/ijcp.12960 · Cited by 102
Stubbs, B., Eggermont, L. H. P., Soundy, A., Probst, M., Vandenbulcke, M., & Vancampfort, D. (2014) · Archives of Gerontology and Geriatrics · doi:10.1016/j.archger.2014.06.006 · Cited by 94
Forest plots in reports of systematic reviews: a cross-sectional study reviewing current practice
Schriger, D. L., Altman, D. G., Vetter, J. A., Heafner, T., & Moher, D. (2010) · International Journal of Epidemiology · doi:10.1093/ije/dyp370 · Cited by 87 · cited 1×
“Forest plots were ordered by effect size to highlight the strength of associations and aid the detection of heterogeneity.(35) Outcomes were reported dependent on analytical technique.”
MethodCREIGHTON, A. S., Davison, T. E., & Kissane, D. W. (2016) · International Journal of Geriatric Psychiatry · doi:10.1002/gps.4604 · Cited by 85
Schöttker, B., Saum, K.-U., Muhlack, D. C., Hoppe, L. K., Holleczek, B., & Brenner, H. (2017) · European Journal of Clinical Pharmacology · doi:10.1007/s00228-017-2266-7 · Cited by 85
Deconstructing Complex Multimorbidity in the Very Old: Findings from the Newcastle 85+ Study
Collerton, J. C., Jagger, C., Yadegarfar, M. E., Davies, K., Parker, S. G., Robinson, L. A., & Kirkwood, T. B. L. (2016) · BioMed Research International · doi:10.1155/2016/8745670 · Cited by 79
Much more medicine for the oldest old: trends in UK electronic clinical records
Melzer, D. R., Tavakoly, B., Winder, R. E., Masoli, J. A. H., Henley, W., Blè, A., & Richards, S. H. (2014) · Age and Ageing · doi:10.1093/ageing/afu113 · Cited by 77
The scope of drug-related problems in the home care setting
Meyer‐Massetti, C., Meier, C. R., & Guglielmo, B. J. (2018) · International Journal of Clinical Pharmacy · doi:10.1007/s11096-017-0581-9 · Cited by 74
A further use for the Harvest plot: a novel method for the presentation of data synthesis
Crowther, M. A., Avenell, A., MacLennan, G., & Mowatt, G. (2011) · Research Synthesis Methods · doi:10.1002/jrsm.37 · Cited by 72
Up-to-dateness of reviews is often neglected in overviews: a systematic review
Pieper, D., Antoine, S., Neugebauer, E. A. M., & Eikermann, M. (2014) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2014.08.008 · Cited by 72
Burt, J., Elmore, N., Campbell, S., Rodgers, S., Avery, A. J., & Payne, R. (2018) · BMC Medicine · doi:10.1186/s12916-018-1078-7 · Cited by 61
Updates in nutrition and polypharmacy
Little, M. O. (2017) · Current Opinion in Clinical Nutrition & Metabolic Care · doi:10.1097/mco.0000000000000425 · Cited by 55
Challenges and innovations of delivering medicines to older adults
Gnjidic, D., Husband, A., & Todd, A. (2018) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2018.08.003 · Cited by 36
Self-citationBoeker, E. B., Ram, K., Klopotowska, J. E., de Boer, M., Creus, M. T., López‐de‐Andrés, A., Sakuma, M., Morimoto, T., Boermeester, M. A., & Dijkgraaf, M. G. W. (2014) · British Journal of Clinical Pharmacology · doi:10.1111/bcp.12504 · Cited by 31
Less is less: a systematic review of graph use in meta‐analyses
Schild, A. H. E., & Voracek, M. (2013) · Research Synthesis Methods · doi:10.1002/jrsm.1076 · Cited by 24
Morath, B., Mayer, T., Send, A. F. J., Hoppe‐Tichy, T., Haefeli, W. E., & Seidling, H. M. (2017) · British Journal of Clinical Pharmacology · doi:10.1111/bcp.13318 · Cited by 17
UNDERSTANDING GRAPHS AND TABLES
Wainer, H. (1992) · ETS Research Report Series · doi:10.1002/j.2333-8504.1992.tb01443.x · Cited by 6
Conceptualizing geriatric syndromes
Rikkert, M. G. M. O. (2017) · Oxford University Press eBooks · doi:10.1093/med/9780198701590.003.0048 · Cited by 6
Pieper, D., Li, L., & Büchter, R. B. (2016) · Springer eBooks · doi:10.1007/978-3-319-25655-9_22 · Cited by 3
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Metadata
- Authors
- Davies, L. E., Spiers, G., Kingston, A., Todd, A., Adamson, J., & Hanratty, B.
- Venue
- Journal of the American Medical Directors Association
- Publisher
- Elsevier BV
- Published
- 2020-02
- Volume
- 21
- Issue
- 2
- Pages
- 181-187
- ISSN
- 1525-8610 (ISSN-L)
- OpenAlex
- W3000114476
- Cited by
- 544
- References
- 70
- FWCI
- 8.08
- Type
- journal article
- Language
- en
- Open access
- hybrid
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