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The association between polypharmacy and medication regimen complexity and antibiotic use in bronchiectasis.

ABSTRACT: Background Polypharmacy is associated with an increased risk of adverse drug events, inappropriate prescribing and medication errors. People with bronchiectasis have frequent pulmonary exacerbations that require antibiotic therapy. Objective This study aimed to measure polypharmacy and medication regimen complexity in bronchiectasis patients and to explore associations between these factors and oral and intravenous (IV) antibiotic use for suspected pulmonary exacerbations. Setting Patients were sampled from the Regional Bronchiectasis Clinic at the Belfast Health and Social Care Trust, Northern Ireland. Method Data on medicines were collected from patients' records and used to measure polypharmacy using three thresholds (??4, ??10, and ??15 medicines'). Medication regimen complexity was calculated using the medication regimen complexity index (MRCI). Data analysis investigated differences in outcomes across polypharmacy thresholds and correlations with MRCI. Main outcome measure Primary outcomes were prescriptions for oral antibiotics and IV antibiotics, in the past 6 months and 2 years, respectively. Results Over three-quarters of the sample (N?=?95) were prescribed ??4 medicines (n?=?74; 77.9%), 31 patients were prescribed ??10 medicines (33.0%), and 12 patients (12.8%) were prescribed ??15 medicines. The median MRCI was 26. Patients prescribed ??10 medicines were over three times more likely to have had an IV antibiotic in the past 2 years (adjusted odd ratio 3.44, 95% confidence intervals 1.15-10.31). Conclusion There were significant differences in all outcomes across the '??10 medicines' threshold. MRCI was positively correlated with oral and IV antibiotic usage. These findings also suggest a possible link between polypharmacy and medicines regimen complexity, and poorer outcomes.

SUBMITTER: Spargo M

PROVIDER: S-EPMC6208574 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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The association between polypharmacy and medication regimen complexity and antibiotic use in bronchiectasis.

Spargo Maureen M Ryan Cristín C Downey Damian D Hughes Carmel C

International journal of clinical pharmacy 20180709 5

Background Polypharmacy is associated with an increased risk of adverse drug events, inappropriate prescribing and medication errors. People with bronchiectasis have frequent pulmonary exacerbations that require antibiotic therapy. Objective This study aimed to measure polypharmacy and medication regimen complexity in bronchiectasis patients and to explore associations between these factors and oral and intravenous (IV) antibiotic use for suspected pulmonary exacerbations. Setting Patients were ...[more]

PMID: 29987511

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Project description:IntroductionType 2 diabetes mellitus (T2DM) and comorbid conditions require patients to take complex medication regimens. Greater regimen complexity has been associated with poorer T2DM management; however, the relationship between overall regimen complexity and glycemic control is unclear.ObjectivesOur objectives were: (1) to examine associations between regimen complexity (with the Medication Regimen Complexity Index [MRCI]) and glycemic control (A1C), and (2) to compare overall MRCI with other measures of regimen complexity (overall and diabetes-specific medication count) and diabetes-specific MRCI.MethodsThis was a secondary data analysis of cross-sectional data from a parent trial. Participants were patients with T2DM taking at least 3 chronic medications followed in safety net clinics in the Chicago area. The MRCI measures complexity based on dosing frequency, route of administration, and special instructions for prescribed medications. MRCI scores were created for overall regimens and diabetes-specific medications. Sociodemographics and outpatient visit utilization were included in models as covariates. Linear regression was used to examine the associations between variables of interest and hemoglobin A1C.ResultsParticipants (N = 432) had a mean age of 56.9 years, most were female (66.0%), and Hispanic or Latino (73.3%). Regimen complexity was high based on overall medications (mean = 6.6 medications, SD: 3.09) and MRCI (mean = 21.4, SD: 11.3). Higher diabetes-specific MRCI was associated with higher A1C in bivariate and multivariable models. In multivariable models, overall MRCI greater than 14, fewer outpatient health care visits, male gender, and absence of health insurance were independently associated with higher A1C. The variance in A1C explained by MRCI was higher compared to medication count for overall and diabetes-specific regimen complexity.ConclusionsMore complex regimens are associated with worse A1C and measuring complexity with MRCI may have advantages. Deprescribing, increasing insurance coverage, and promoting engagement in health care may improve A1C among underserved populations with complex regimens.

Project description:BACKGROUND:The population of cancer survivors is rapidly growing in the United States. Long-term and late effects of cancer, combined with the ongoing management of other chronic conditions, make survivors particularly vulnerable to polypharmacy and its adverse effects. In the current study, the authors examined patterns of prescription medication use and polypharmacy in a population-based sample of cancer survivors. METHODS:Using data from the Medical Expenditure Panel Survey (MEPS), the authors matched cancer survivors (5216 survivors) with noncancer controls (19,588 controls) by age, sex, and survey year. Polypharmacy was defined as ?5 unique medications. The authors estimated the percentage of respondents prescribed medications within therapeutic classes and total prescription expenditures. RESULTS:A higher percentage of cancer survivors were prescribed ?5 unique medications (64.0%; 95% confidence interval [95% CI], 62.3%-65.8%) compared with noncancer controls (51.5%; 95% CI, 50.4%-52.6%), including drugs with abuse potential. Across all therapeutic classes, a higher percentage of newly (?1 year since diagnosis) and previously (>1 years since diagnosis) diagnosed survivors were prescribed medications compared with controls, with large differences observed with regard to central nervous system agents (65.8% [95% CI, 62.3%-69.3%] vs 57.4% [95% CI, 55.3%-59.5%] vs 46.0% [95% CI, 45.0%-46.9%]). Specifically, nearly 10% of survivors were prescribed benzodiazepines and/or opioids compared with approximately 5% of controls. Survivors had more than double the prescription expenditures (median of $1633 vs $784 among controls). Findings persisted across age and comorbidity categories. CONCLUSIONS:Cancer survivors were prescribed a higher number of unique medications, including drugs with abuse potential, thereby increasing their risk of adverse drug events, financial toxicity, poor adherence, and drug-drug interactions. Cancer 2018;124:2850-2857. © 2018 American Cancer Society.

Project description:Antithrombotic medications are among the most commonly prescribed medications.To characterize rates of hematuria-related complications among patients taking antithrombotic medications.Population-based, retrospective cohort study including all citizens in Ontario, Canada, aged 66 years and older between 2002 and 2014. The final follow-up date was December 31, 2014.Receipt of an oral anticoagulant or antiplatelet medication.Hematuria-related complications, defined as emergency department visit, hospitalization, or a urologic procedure to investigate or manage gross hematuria.Among 2?518?064 patients, 808?897 (mean [SD] age, 72.1 [6.8] years; 428?531 [53%] women) received at least 1 prescription for an antithrombotic agent over the study period. Over a median follow-up of 7.3 years, the rates of hematuria-related complications were 123.95 events per 1000 person-years among patients actively exposed to antithrombotic agents vs 80.17 events per 1000 person-years among patients not exposed to these drugs (difference, 43.8; 95% CI, 43.0-44.6; P?<?.001, and incidence rate ratio [IRR], 1.44; 95% CI, 1.42-1.46). The rates of complications among exposed vs unexposed patients (80.17 events/1000 person-years) were 105.78 for urologic procedures (difference, 33.5; 95% CI, 32.8-34.3; P?<?.001, and IRR, 1.37; 95% CI, 1.36-1.39), 11.12 for hospitalizations (difference, 5.7; 95% CI, 5.5-5.9; P?<?.001, and IRR, 2.03; 95% CI, 2.00-2.06), and 7.05 for emergency department visits (difference, 4.5; 95% CI, 4.3-4.7; P?<?.001, and IRR, 2.80; 95% CI, 2.74-2.86). Compared with patients who were unexposed to thrombotic agents, the rates of hematuria-related complications were 191.61 events per 1000 person-years (difference, 117.3; 95% CI, 112.8-121.8) for those exposed to both an anticoagulant and antiplatelet agent (IRR, 10.48; 95% CI, 8.16-13.45), 140.92 (difference, 57.7; 95% CI, 56.9-58.4) for those exposed to anticoagulants (IRR, 1.55; 95% CI, 1.52-1.59), and 110.72 (difference, 26.5; 95% CI, 25.9-27.0) for those exposed to antiplatelet agents (IRR, 1.31; 95% CI, 1.29-1.33). Patients exposed to antithrombotic agents, compared with patients not exposed to these drugs, were more likely to be diagnosed as having bladder cancer within 6 months (0.70% vs 0.38%; odds ratio, 1.85; 95% CI, 1.79-1.92).Among older adults in Ontario, Canada, use of antithrombotic medications, compared with nonuse of these medications, was significantly associated with higher rates of hematuria-related complications (including emergency department visits, hospitalizations, and urologic procedures to manage gross hematuria).

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The association between polypharmacy and medication regimen complexity and antibiotic use in bronchiectasis.

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The association between polypharmacy and medication regimen complexity and antibiotic use in bronchiectasis.

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