Heidi O'Connor

Impact of inappropriate drug use on health services utilization among representative older community-dwelling residents

BACKGROUND There is limited objective information regarding the impact of drugs identified as inappropriate by drug utilization review (DUR) or the Beers drugs-to-avoid criteria on health service use. OBJECTIVE The goal of this study was to examine the predictive validity of DUR and the Beers criteria employed to define inappropriate drug use in representative community residents, aged >or=68 years, as determined by the relationship of these criteria to health service use in older community residents. METHODS Data came from participants in the Duke University Established Populations for Epidemiologic Studies of the Elderly seen in 1989/1990 and for whom information was also available 3 years later. Two sets of inappropriate drug use criteria were examined: (1) DUR regarding dosage, duration, duplication, and drug-drug and drug-disease interactions; and (2) the Beers criteria, applied to drug use reported in an in-home interview. Outpatient visits and nursing-home entry were determined by personal report; hospitalization information came from Medicare Part A files from the Centers for Medicare and Medicaid Services. RESULTS A total of 3165 participants were available at the fourth interview in 1989/1990. The majority were aged >74 years (51.1%), white (64.8%), women (64.7%), had fair or poor health (77.0%), consistently saw the same physician (86.9%), and possessed supplemental health insurance (62.8%). Use of inappropriate drugs meeting DUR criteria, especially for drug-drug or drug-disease interaction problems, was associated with increased outpatient visits (P<0.05) but not with time to hospitalization or time to nursing home entry. The use of inappropriate drugs according to the Beers criteria was associated with reduced time to hospitalization (adjusted hazard ratio, 1.20; 95% CI, 1.04-1.39) but not to outpatient visits or nursing home entry. CONCLUSIONS Our data suggest that in representative community residents aged >or=68 years, current criteria for inappropriate drug use should be used with caution in evaluating quality of care because they have minimal impact on use of health services. We found increases only in the use of outpatient services (with DUR) and more rapid use of hospitalization (with the Beers criteria).

The impact of Telephonic Health Coaching on Health Outcomes in a High-risk Population

Background: Health coaching is a client-centric process to increase motivation and self-efficacy that supports sustainable lifestyle behavior changes and active management of health conditions. This study describes an intervention offered as a benefit to health plan members and examines health and behavioral outcomes of participants. Methods: High-risk health plan enrollees were invited to participate in a telephonic health coaching intervention addressing the whole person and focusing on motivating health behavior changes. Outcomes of self-reported lifestyle behaviors, perceived health, stress levels, quality of life, readiness to make changes, and patient activation levels were reported at baseline and upon program completion. Retrospectively, these data were extracted from administrative and health coaching records of participants during the first 2 full years of the program. Results: Less than 7% of the 114 615 potential candidates self-selected to actively participate in health coaching, those with the highest chronic disease load being the most likely to participate. Of 6940 active participants, 1082 fully completed pre- and post- health inventories, with 570 completing Patient Activation Measure (PAM). The conditions most often represented in the active participants were depression, congestive heart failure, diabetes, hyperlipidemia, hypertension, osteoporosis, asthma, and low back pain. In 6 months or less, 89% of participants met at least one goal. Significant improvements occurred in stress levels, healthy eating, exercise levels, and physical and emotional health, as well as in readiness to make change and PAM scores. Discussion: The types of client-selected goals most often met were physical activity, eating habits, stress management, emotional health, sleep, and pain management, resulting in improved overall quality of life regardless of condition. Positive shifts in activation levels and readiness to change suggest that health coaching is an intervention deserving of future prospective research studies to assess the utilization, efficacy, and potential cost-effectiveness of health coaching programs for a range of populations.

Health care coverage and access to care: The status of Minnesota's veterans

Objectives:The primary objective of this study was to examine veterans’ reliance on health care services provided by the Veterans Health Administration (VHA) within Minnesota and estimate the potential effect on uninsurance rates if all eligible veterans relied on VHA coverage. Secondary objectives were to compare veterans and nonveterans’ by geographic location, demographic characteristics, health status, and health insurance coverage and to compare insured and uninsured veterans especially with regard to access to care. Research Design:Data are from the 2001 Minnesota Health Access Survey of a stratified random sample of more than 27,000 respondents, of whom 3,500 were self-identified veterans. Although all veterans were eligible to obtain health care services from the VHA in 2001, veterans not reporting VHA coverage and having no other source of insurance coverage were considered uninsured. Differences in weighted population characteristics are reported. Logistic regression analysis is used to identify factors associated with veterans’ reliance on VHA coverage. Results:Veterans represented 13.4% of the states adult population and 9.3% of the states uninsured nonelderly adult population in 2001. Uninsured veterans were more likely to be single, unemployed, living in rural areas, and reporting constrained access to services than insured veterans. Veterans with a non-VHA source of insurance were less reliant on VHA services. Conclusions:The states uninsurance rate would significantly decrease if VHA capacity constraints were alleviated and veterans relied on the VHA safety net. If veterans’ insurance status matters in states with low uninsurance rates, VHA coverage has broader implications for states with higher veteran concentrations and higher uninsurance rates.

How effective is health coaching in reducing health services expenditures

Background:Health coaching interventions aim to identify high-risk enrollees and encourage them to play a more proactive role in improving their health, improve their ability to navigate the health care system, and reduce costs. Objectives:Evaluate the effect of health coaching on inpatient, emergency room, outpatient, and prescription drug expenditures. Research Design:Quasiexperimental pre-post design. Health coaching participants were identified over the 2-year time period 2009–2010. Propensity scores facilitated matching eligible participants and nonparticipating controls on a one-to-one basis using nearest kernel techniques. Difference in differences logistic and generalized linear models addressed the impact of health coaching on the probability of incurring costs and levels of inpatient, emergency room, outpatient, and prescription drug expenditures, respectively. Measures:Administrative claims data were used to analyze health services expenditures preparticipation and post health coaching participation time periods. Results:Of the 6940 health coaching participants, 1161 participated for at least 4 weeks and had a minimum of 6 months of claims data preparticipation and postparticipation. Although the probability of incurring costs and expenditure levels for emergency room services were not affected, the probability of incurring inpatient expenditures and levels of outpatient and total costs for health coaching participants fell significantly from preparticipation to postparticipation relative to controls. Estimated outpatient and total cost savings were

Time until incident dementia among Medicare beneficiaries using centrally acting or non-centrally acting ACE inhibitors

286 and

Health plan enrollment and mortality in the Medicare program.

412 per person per month, respectively. Conclusions:Health coaching led to significant reductions in outpatient and total expenditures for high-risk plan enrollees. Future studies analyzing both health outcomes and claims data are needed to assess the cost-effectiveness of health coaching in specific populations.

Multiple Prior Years of Health Expenditures and Medicare Health Plan Choice

Centrally active (CA) angiotensin‐converting enzyme inhibitors (ACEIs) are able to cross the blood–brain barrier. Small observational studies and mouse models suggest that use of CA versus non‐CA ACEIs is associated with a reduced incidence of Alzheimers disease and related dementias (ADRD).

Dental service trends for older U.S. adults, 1998-2006

Prior studies have found that Medicare health maintenance organization (HMO) enrollees have lower mortality (over a fixed observation period) than beneficiaries in traditional fee-for-service (FFS) Medicare. We use Medicare Current Beneficiary Survey (MCBS) data to compare 2-year predicted mortality for Medicare enrollees in the HMO and FFS sectors using a sample selection model to control for observed beneficiaries characteristics and unobserved confounders. The difference in raw, unadjusted mortality probabilities was 0.5% (HMO lower). Correcting for numerous observed confounders resulted in a difference of -0.6% (HMO higher). Further adjustment for unobserved confounders resulted in an estimated difference of 3.7 and 4.2% (HMO lower), depending on the specification of geographic-fixed effects. The latter result (4.2%) was statistically significant and consistent with prior studies that did not adjust for unobserved confounding. Our findings suggest there may be unobserved confounders associated with adverse selection in the HMO sector, which had a large effect on our mortality estimates among HMO enrollees. An important topic for further research is to identify such confounders and explore their relationship to mortality. The methods presented in this paper represent a promising approach to comparing outcomes between the HMO and FFS sectors, but further research is warranted.

Use of the Beers criteria to identify potentially inappropriate drug use by community-dwelling older dental patients

This study examines the effect of multiple prior years of health expenditures on the probability of enrollment in a Medicare HMO. Beneficiaries may require more than one year of prior expenditure data to form a reliable estimate of future expenditures if health expenditures have a significant transitory component. We used a logit model to estimate the influence of 1991–1993 Part A expenditures and demographic data on the choice of health plans in 1994. The results indicate that beneficiaries use multiple years of expenditures in their choice of health plan and the effect of prior spending declined with time.

Using the Medicare Current Beneficiary Survey to conduct research on Medicare-eligible veterans

This study of the Medicare Current Beneficiary Survey (MCBS) updates trends in utilization of dental services between 1998 and 2006 for community-dwelling U.S. adults of age 65 years and older. Bivariate comparisons were made between dependent variables (annual dental visits and types of dental procedures) and independent variables (age, gender, race, income, education, population density, marital status, U.S. Census Bureau regions, and self-reported health). The estimated percentage of community-dwelling Medicare beneficiaries with a dental visit for the years studied increased from 45.0% in 1998 to 46.3% in 2006. The age group of respondents who were 85 years and older had the greatest percentage increase in dental visits. Those reporting visits with preventive procedures increased from 87.8% to 91.2% whereas those reporting visits with nonpreventive procedures declined from 63.9% to 58.4%. The prevalence of dental visits continues to trend upward for this population of older adults. Increasing delivery of preventive services will likely impact the future mix of dental services as U.S. adults live longer.