Patient Characteristics Associated with Medication Adherence

SummaryBackground and objectives The complexity of CKD management in children is increased by the number of comorbid conditions. This study assessed the prevalence of comorbidities in pediatric CKD and the frequency with which multiple comorbidities present together by assessing prevalent medication use by CKD stage and diagnosis and their association with clinical or sociodemographic factors. The association between number and frequency of dosing of medications prescribed and self-report of nonadherence was also assessed.Design, setting, participants, & measurements In this cross-sectional analysis of the Chronic Kidney Disease in Children study, medication use at study entry grouped by indication was examined by CKD stage, diagnosis, age, race, ethnicity, income, and CKD duration. Multivariate adjusted predictors of medication use and clustering were examined. Nonadherence was assessed by self-report of missed medications in the past 7 days.Results The 558 eligible participants had a median age of 11 years and median GFR of 44 ml/min per 1.73 m 2 ; 62% of participants were male and 78% had nonglomerular kidney disease. The number of medications for treatment of CKD comorbidities increased with advanced CKD stage (2.5-fold for stages IV versus II; P,0.001) and glomerular disease (1.4-fold versus nonglomerular; P,0.001). Three distinct medication clusters were identified that corresponded to treatment of glomerular disease, advanced renal tubular dysfunction, and proteinuric complications, respectively. Nonadherence was associated with increased medication dosing frequency (administration .2 times/d; P,0.001) but not the number of medications.Conclusions Medical therapy for children with CKD is complex and is affected by glomerular diagnosis, CKD stage, and medication frequency. The need for CKD-related medication treatment cannot be easily predicted by CKD staging alone. Poorer adherence was associated with increased medication frequency, but not with the number of medical problems needing treatment. Consolidating medical treatment and reducing medication frequency may improve adherence rates in children with CKD.

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“…This contrasts with other reports that suggest greater nonadherence among African-American patients (23)(24)(25)(26)(27).…”

Section: Discussioncontrasting

confidence: 55%

Medication Treatment Complexity and Adherence in Children with CKD

Blydt-Hansen

Pierce

Cai

et al. 2014

Clinical Journal of the American Society of Nephrology

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“…Finally, as our questionnaire assessed actual treatment and not just prescription, adherence to treatment could influence the proportion of patients with maintenance treatment. Yet, adherence and correct inhaler technique have been reported to be equal between sexes [32] or even better in men [33,34] and subsequently should not explain our results. In summary, more research in sex differences and its implications for therapy is obviously needed [35,36].…”

Section: Discussionmentioning

confidence: 59%

Factors influencing pharmacological treatment in COPD: a comparison of 2005 and 2014

Sundh

Åberg

Hasselgren

et al. 2017

European Clinical Respiratory Journal

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Introduction: The aim was to investigate how the pattern of pharmacological treatment in Swedish patients with chronic obstructive pulmonary disease (COPD) has changed over a decade, and to identify factors associated with treatment. Methods: Data on patient characteristics and pharmacological treatment were collected using questionnaires from two separate cohorts of randomly selected primary and secondary care patients with a doctor’s diagnosis of COPD in central Sweden, in 2005 (n = 1111) and 2014 (n = 1329). Cross-tabulations and chi-square tests were used to compare maintenance treatment in 2005 and 2014, and to investigate the distribution of treatment by the 2017 Global Initiative for Obstructive Lung Disease (GOLD) ABCD groups. Multinomial logistic regression was used to analyze associations with the major types of recommended treatments: bronchodilator therapy, combined long-acting beta-2-antagonists (LABA) + inhaled corticosteroids (ICS), and triple inhaled therapy. Results: The proportion of patients with no maintenance treatment, with only LABA + ICS, and with sole ICS statistically significantly decreased (36 vs. 31%, 16 vs. 12% and 5 vs. 2%, respectively), and the proportion with triple inhaled therapy statistically significantly increased (29 vs. 40%). In 2014, triple inhaled therapy was the most common treatment in all GOLD groups except group A. In 2014, previous frequent exacerbations [OR (95% CI) 2.34 (1.62 to 3.36)], worse COPD Assessment Test score [1.07 (1.05 to 1.09)], female sex [2.13 (1.56 to 2.91)], and access to a specific responsible doctor [1.95 (1.41 to 2.69)] were associated with triple inhaled therapy. Current smoking [0.40 (0.28 to 0.57)] and overweight [0.62 (0.41 to 0.93)] were inversely associated with triple inhaled therapy. Conclusions: Over the last decade, triple inhaled therapy has increased, and no maintenance treatment, ICS, or LABA + ICS has decreased. Triple inhaled therapy is the most common treatment and is associated with previous exacerbations, higher symptom level, female sex, and having a specific responsible doctor.

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“…Overall, only 65-85% of GLD users are regarded as adherent [8,9]; this might decrease even more after a diagnosis of cancer. If a cancer diagnosis can influence medication adherence among GLD users, this could also affect HbA 1c levels, leading to poor metabolic control, higher risk of diabetes complications and worse overall mortality.…”

Section: Introductionmentioning

confidence: 99%

Impact of cancer on adherence to glucose-lowering drug treatment in individuals with diabetes

et al. 2015

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Aims/hypothesis Adherence to glucose-lowering drug (GLD) treatment regimens is crucial for metabolic control and improving prognosis. Because a diagnosis of cancer might have an impact on adherence to medication, this study explored changes in adherence to GLDs following a cancer diagnosis.Methods All new users of GLDs between 1998 and 2011 who lived in the Eindhoven Cancer Registry-PHARMO Database Network catchment area were selected. Those with a primary cancer diagnosis during follow-up were considered cases and matched with eligible controls without cancer during followup. Medication possession ratio (MPR) was used as indicator for medication adherence. Segmented linear auto-regression analysis with interrupted time series was used to assess changes in MPR for cases compared with controls (i.e. overall trend) due to (any) cancer diagnosis and specific cancer types. Results From the 52,228 GLD users selected, 3,281 cases with cancer and 12,891 controls without cancer during follow-up were included in the study. In our analyses, before cancer diagnosis the MPR increased by 0.10% per month (95% CI 0.10, 0.10). Besides a significant drop in MPR at the time of cancer diagnosis of −6.3% (95% CI −6.5, −6.0), there was an ongoing, yet lower, monthly decline in MPR (−0.20%; 95% CI −0.21, −0.20) after cancer diagnosis. The largest drops in MPR at the time of cancer diagnosis, in the range of 11-15%, were seen among patients with stage IV disease and gastrointestinal or pulmonary cancers. Conclusions/interpretation Our findings indicate a clear decline in adherence to GLD treatment regimens following a cancer diagnosis. The reason for the decline in MPR needs to be further elucidated.

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Patient Characteristics Associated with Medication Adherence

Cited by 390 publications

References 35 publications

Medication Treatment Complexity and Adherence in Children with CKD

Medication Treatment Complexity and Adherence in Children with CKD

Factors influencing pharmacological treatment in COPD: a comparison of 2005 and 2014

Impact of cancer on adherence to glucose-lowering drug treatment in individuals with diabetes

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