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Barriers to medication adherence and its relationship with outcomes in pediatric dialysis patients
Douglas M Silverstein1, Angela Fletcher, Kathleen Moylan
1Office of Device Evaluation, Renal Devices Branch (RNDB), United States Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, MD, 20903, USA, dsilverstein2001@yahoo.com.
Insights
Medication adherence challenges exist for pediatric dialysis patients. Difficulties were more pronounced in peritoneal dialysis (PD) patients compared to hemodialysis (HD) patients, indicating a need for targeted support.
Area of Science:
- Pediatric Nephrology
- Chronic Disease Management
- Renal Replacement Therapy
Background:
- Medication adherence is critical for pediatric chronic disease outcomes.
- Children with end-stage renal disease face complex medication regimens alongside renal replacement therapy.
Purpose of the Study:
- To assess barriers to medication adherence in pediatric patients undergoing chronic dialysis.
- To compare adherence challenges between hemodialysis (HD) and peritoneal dialysis (PD) modalities.
Main Methods:
- A survey of 22 pediatric dialysis patients (63.6% HD, 36.4% PD) assessed medication adherence using a 16-question survey (max score 64).
- Patient demographics including age and dialysis vintage were recorded.
- Mineral bone disease markers and treatment targets were evaluated.
Main Results:
- The overall mean adherence score was 30.9 (range 16-49).
- Patients on peritoneal dialysis (PD) showed significantly higher mean scores per question (indicating greater difficulty) compared to hemodialysis (HD) patients (p=0.006).
- No significant relationship was found between adherence scores and gender, age, dialysis vintage, or number of treatment targets reached.
Conclusions:
- Pediatric dialysis patients encounter numerous barriers to medication adherence.
- Medication adherence difficulties were more apparent in patients receiving peritoneal dialysis (PD) than hemodialysis (HD).
Background:
Medication adherence is a major factor determining outcome in children with chronic disease. Children with end-stage renal disease are challenged with requirements for renal replacement therapy in addition to complicated medication regimens.
Methods:
We assessed barriers to medication adherence in 22 pediatric patients receiving chronic dialysis [63.6 % hemodialysis (HD), 36.4 % peritoneal dialysis (PD); age 15.9 ± 0.7 years, dialysis vintage 31.6 ± 6.5 months]. Adherence was assessed by a 16-question survey with a maximum score (difficulty) of 64.
Results:
The overall mean adherence score was 30.9 ± 2.4 (range 16-49; median 27.5). There was a trend for lower adherence scores in patients on HD (27.5 ± 2.9) compared to those on PD (36.8 ± 3.7) (p = 0.06). Compared to HD patients, the mean score/question was significantly higher in PD patients (1.7 ± 0.2 vs. 2.4 ± 0.2, respectively; p = 0.006). Of the 16 questions, HD and PD patients gave a mean response of ≤1.2 for five and zero questions, respectively. Neither gender, age nor dialysis vintage was related to adherence scores. There was also a trend for adherence scores to be higher in females (35.6 ± 3.7) than in males (27.5 ± 2.9) (p = 0.1), but this difference did not reach statistical significance. Markers of mineral bone disease were similar in HD and PD patients. Among all targets in HD and PD patients combined, there was no relationship between adherence scores and number of targets reached (r = -0.09, p = 0.7).
Conclusion:
There are many barriers to medication adherence in pediatric patients receiving dialysis. In our patient group the difficulties were more evident in patients receiving PD than in those receiving HD.
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