Polypharmacy and drug use in elderly Danish cancer patients during 1996 to 2006

United Nations, 2001, Department of economic and social affairs. Population division, 1950 Extermann, 2007, Interaction between comorbidity and cancer, Cancer Control, 14, 13, 10.1177/107327480701400103 Zarowitz, 2005, Reduction of high-risk polypharmacy drug combinations in patients in a managed care setting, Pharmacotherapy, 25, 1636, 10.1592/phco.2005.25.11.1636 Bjerrum, 1997, Methods for estimating the occurrence of polypharmacy by means of a prescription database, Eur J Clin Pharmacol, 53, 7, 10.1007/s002280050329 Viktil, 2007, Polypharmacy as commonly defined is an indicator of limited value in the assessment of drug-related problems, Br J Clin Pharmacol, 63, 187, 10.1111/j.1365-2125.2006.02744.x Bjerrum, 1998, Polypharmacy: correlations with sex, age and drug regimen. A prescription database study, Eur J Clin Pharmacol, 54, 197, 10.1007/s002280050445 Riechelmann, 2005, Potential for drug interactions in hospitalized cancer patients, Cancer Chemother Pharmacol, 56, 286, 10.1007/s00280-004-0998-4 Corcoran, 1997, Polypharmacy in the older patient with cancer, Cancer Control, 4, 419, 10.1177/107327489700400505 Flood, 2009, Polypharmacy in hospitalized older adult cancer patients: experience from a prospective, observational study of an oncology-acute care for elders unit, Am J Geriatr Parmacother, 7, 151, 10.1016/j.amjopharm.2009.05.002 Hanigan, 2008, Use of prescription and nonprescription medications and supplements by cancer patients during chemotherapy: questionnaire validation, J Oncol Pharm Practice, 14, 123, 10.1177/1078155208090624 Puts, 2009, Medication problems in older, newly diagnosed cancer patients in canada: how common are they? A prospective pilot study, Drugs Aging, 26, 519, 10.2165/00002512-200926060-00008 Sokol, 2007, Polypharmacy in older oncology patients and the need for an interdisciplinary approach to side-effect management, J Clin Pharm Ther, 32, 169, 10.1111/j.1365-2710.2007.00815.x Girre, 2010, Potential drug interactions in elderly cancer patients, Crit Rev Oncol Hematol Gaist, 1997, The Danish prescription registries, Dan Med Bull, 44, 445 Kildemoes, 2011, The Danish National Prescription Registry, Scand J Public Health, 39, 38, 10.1177/1403494810394717 Pedersen, 2011, The Danish civil registration system, Scand J Public Health, 39, 22, 10.1177/1403494810387965 Storm, 1997, The Danish Cancer Registry — history, content, quality and use, Dan Med Bull, 44, 535 Gjerstorff, 2011, The Danish Cancer Registry, Scand J Public Health, 39, 42, 10.1177/1403494810393562 World Health Organisation Collaborating Centre for Drug Statistics Methodology, 2003 Langholz, 1996, Risk set sampling in epidemiologic cohort studies, Statistical Science, 11, 35, 10.1214/ss/1032209663 Macleod, 2009, Risk factors for delayed presentation and referral of symptomatic cancer: evidence for common cancers, Br J Cancer, 101, S92, 10.1038/sj.bjc.6605398 Extermann, 2010, Cancer in nonagenarians: profile, treatments and outcomes, J Geriatr Oncol, 1, 27, 10.1016/j.jgo.2010.03.003 Lazarovici, 2011, Factors leading oncologists to refer elderly cancer patients for geriatric assessment, J Geriatr Oncol, 2, 194, 10.1016/j.jgo.2011.03.001 McLean, 2004, Aging biology and geriatric clinical pharmacology, Pharmacol Rev, 56, 163, 10.1124/pr.56.2.4 Jørgensen, 2009, Comorbidity and polypharmacy in elderly cancer patients: the significance on treatment outcome and tolerance, J Geriatr Oncol, 1, 87, 10.1016/j.jgo.2010.06.003 Madsen, 2009, Danish drug consumption trends, Ugeskr Laeger, 171, 775 Kildemoes, 2008, Driving forces behind increasing cardiovascular drug utilization: a dynamic pharmacoepidemiological model, Br J Clin Pharmacol, 66, 885, 10.1111/j.1365-2125.2008.03282.x Hallas, 2001, Conducting pharmacoepidemiologic research in Denmark, Pharmacoepidemiol Drug Saf, 10, 619, 10.1002/pds.638 Engholm, 2010, NORDCAN: cancer incidence, mortality, prevalence and prediction in the nordic countries The Danish Health Board Barat, 2000, The consumption of drugs by 75-year-old individuals living in their own homes, Eur J Clin Pharmacol, 56, 501, 10.1007/s002280000157 Kennedy, 2005, Herb and supplement use in the US adult population, Clin Ther, 27, 1847, 10.1016/j.clinthera.2005.11.004 Patterson, 2002, Types of alternative medicine used by patients with breast, colon, or prostate cancer: predictors, motives, and costs, J Altern Complement Med, 8, 477, 10.1089/107555302760253676 Claxton, 2001, A systematic review of the associations between dose regimens and medication compliance, Clin Ther, 23, 1296, 10.1016/S0149-2918(01)80109-0