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This comprehensive review analyzes medication adherence and patterns in a developmental disabilities population, with insights on interdisciplinary care and diagnostic trends. It delves into factors affecting adherence, medication types, and demographic associations.
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UCI-RCOC NEURODEVELOPMENTAL PROGRAM AND CLINIC A 14 Year Review February 2, 2012
UCI Professional Personnel Ira T. Lott, MD - Pediatric Neurologist and Director Paul Touchette, EdD – Psychologist Gail Fernandez, MD – Psychiatrist Anne Tournay, MD – Neurologist Larry Plon, Pharm D. - Research Pharmacist Christy Hom, PhD - Neuropsychologist and Coordinator
Objectives 1) To determine the extent of polypharmacy for psychoactive drugs in the RCOC consumer population 2) Interdisciplinary Team Clinic for RCOC consumers with medication and behavioral issues
Psychoactive Drug Survey • 30 months consecutive data • CalOptima Pharmacy Billing Records Accessed • Cross-linked to RCOC consumers
30 month Medication Survey • 7,419 psychoactive drug prescriptions for RCOC population ( 26.8% of all prescriptions written) • 62% had more than one psychoactive drug prescription and 32% had 3 or more • First study of its kind in the DD population, published J Intellect Disability Research
30 Month Survey of Psychoactive Medications • 2,229,970 prescriptions surveyed • 92,162 patients • 25% were for psychoactive drugs • Is it possible to determine medication adherence from the pharmacy billing records?
Calculation of Medication Adherence • Ratio = # of days of drug supply # of days from first to last refill • Adherence “yes” if ratio is ≥0.75 to 1.1 • Adherence “no” if ratio<0.75
Adherence by Residence Type • Cross linked adherence calculations with residence type from CDER
Number of Clients by Residence Total = 1865 RCOC Consumers
Clients in Own Home Significantly Less Adherent for All 5 Medication Classes
Factors Affecting Medication Adherence • Residence Group home residents are twice as likely to adhere to their psychoactive prescriptions than consumers who live in their own home or family home • Medication form DivalproexER is 2.01 times more likely to be adhered to than regular Divalproex • Polypharmacy, gender, and age did not affect adherence.
Conclusions from Adherence Study • Medication adherence is problematic for clients living in their own home • This is very similar to the general population • Public health efforts towards medication adherence indicated
Introduction to Interdisciplinary Clinic • Team consists of neurologist, psychiatrist, educational, research and neuropsychologists • All clients referred by RCOC (1837 consumers evaluated since 1998) • Interdisciplinary team review of diagnostic, medication, and treatment options for each client
Primary Referral Reasons • Polypharmacy • Medication side effects • Increasing behavioral problems • Need for diagnostic services
Mean Age of 1500 Consumers Mean ages of consumers in years 2007-2011 less than in years 2001-2006; p<.001
Gender Distribution Distribution from 2001-2004 significantly different than that from 2007-2011 Distribution in 2005 significantly different than that in 2006, but not from that in 2004 Distribution from 2010-2011 significantly different from 2007
Distribution of Intellectual Disability *Prior to 2008, consumers with No Intellectual Disability had their ID Level coded as missing % of Consumers with ID, Severity Unspecified has sharply increased since 2008
Average # of Psychoactive Medications Pre-Clinic Average # of medications from 2001-2007 greater than average # of medications from 2008-2011; p<.001
Diagnostic Trends by Year Significant increase in consumers with an Anxiety Disorder or Autistic Disorder
Diagnostic Trends by Year Significant decrease in consumers with Bipolar Disorder, OCD, or Impulse Control Disorder
Associations with # of Psychoactive Medications • Schizophrenia, Bipolar Disorder, and Impulse Control Disorder associated with more medications • Autistic Disorder associated with fewer medications (possibly because younger in age)
Associations with Schizophrenia • Significantly older than patients not diagnosed with Schizophrenia • Significantly higher intellectual functioning • Taking significantly more psychoactive medications than those without Schizophrenia • Significantly better personal, community, and social skills than rest of clinic population
Associations with Bipolar Disorder • Taking significantly more psychoactive medications than those without Bipolar Disorder • Caregivers less compliant in following clinic recommendations • Significantly more irritable than consumers without Bipolar Disorder • Significantly better personal, community, and social skills than rest of clinic population
Associations with Autistic Disorder • Significantly younger than consumers without Autism • Taking fewer psychoactive medications • Significantly less personal, community, and social skills • Significantly more maladaptive behaviors (both internalizing and externalizing behaviors)