Reducing Inpatient Hospital and Emergency Room Utilization Among Nursing Home Residents.

OBJECTIVE: To examine the association among nursing home residents between strength of relationship with a primary care provider (PCP) and inpatient hospital and emergency room (ER) utilization. METHOD: Medicare administrative data for beneficiaries residing in a nursing home between July 2007 and June 2009 were used in multivariate analyses controlling for beneficiary, nursing home, and market characteristics to assess the association between two measures-percentage of months with a PCP visit and whether the patient maintained the same usual source of care after nursing home admission-and hospital admissions and ER visits for all causes and for ambulatory care sensitive conditions (ACSCs). RESULTS: Both measures of strength of patient-provider relationships were associated with fewer inpatient admissions and ER visits, except regularity of PCP visits and ACSC ER visits. DISCUSSION: Policy makers should consider increasing the strength of nursing home resident and PCP relationships as one strategy for reducing inpatient and ER utilization.

Examination of the accuracy of coding hospital-acquired pressure ulcer stages.

OBJECTIVE: Pressure ulcers (PU) are considered harmful conditions that are reasonably prevented if accepted standards of care are followed. They became subject to the payment adjustment for hospitalacquired conditions (HACs) beginning October 1, 2008. We examined several aspects of the accuracy of coding for pressure ulcers under the Medicare Hospital-Acquired Condition Present on Admission (HAC-POA) Program. We used the "4010" claim format as a basis of reference to show some of the issues of the old format, such as the underreporting of pressure ulcer stages on pressure ulcer claims and how the underreporting varied by hospital characteristics. We then used the rate of Stage III and IV pressure ulcer HACs reported in the Hospital Cost and Utilization Project State Inpatient Databases data to look at the sensitivity of PU HAC-POA coding to the number of diagnosis fields. METHODS: We examined Medicare claims data for FYs 2009 and 2010 to examine the degree that the presence of stage codes were underreported on pressure ulcer claims. We selected all claims with a secondary diagnosis code of pressure ulcer site (ICD-9 diagnosis codes 707.00-707.09) that were not reported as POA (POA of "N" or "U"). We then created a binary indicator for the presence of any pressure ulcer stage diagnosis code. We examine the percentage of claims with a diagnosis of a pressure ulcer site code with no accompanying pressure ulcer stage code. RESULTS: Our results point to underreporting of PU stages under the "4010" format and that the reporting of stage codes varied across hospital type and location. Further, our results indicate that under the "5010" format, a higher number of pressure ulcer HACs can be expected to be reported and we should expect to encounter a larger percentage of pressure ulcers incorrectly coded as POA under the new format. CONCLUSIONS: The combination of the capture of 25 diagnosis codes under the new "5010" format and the change from ICD-9 to ICD-10 will likely alleviate the observed underreporting of pressure ulcer HACs. However, as long as coding guidelines direct that Stage III and IV pressure ulcers be coded as POA, if a lower stage pressure ulcer was POA and progressed to a higher stage pressure ulcer during the admission, the acquisition of Stage III and IV pressure ulcers in the hospital will be underreported.

Use of six clinical preventive services in TRICARE Prime compared to insured, managed care, and all U.S. populations and Healthy People 2010.

OBJECTIVES: Timely preventive healthcare services are important to troop readiness and the health of Military Health System (MHS) beneficiaries. Prior studies have reported on use of preventive care among select MHS subgroups, but broader performance is undocumented. This study addresses that gap by comparing TRICARE Prime beneficiaries to select U.S. populations. METHODS: Rates of prenatal care in the first trimester, flu shots, and screening for breast cancer, cervical cancer, cholesterol, and blood pressure were estimated from the 2004 Health Care Survey of Department of Defense (DoD) Beneficiaries. Rates for U.S. populations were estimated from several national health surveys. Healthy People 2010 goals provided a comparison benchmark. RESULTS: Utilization rates of TRICARE Prime enrollees significantly exceeded the U.S. population for all services examined and exceeded the insured U.S. population for flu shots, prenatal care, and screening for breast cancer and cervical cancer. Two Healthy People 2010 goals were met but three were not. CONCLUSIONS: TRICARE Prime enrollees had similar rates of six clinical preventive care services as insured U.S. populations in 2004, but failed to meet several Healthy People 2010 guidelines. Increased emphasis on these services will be required in order to meet such objectives and reduce long-term health and financial pressures on the MHS.

Evaluating the performance of medicare fee-for-service providers using the health outcomes survey: a comparison of two methods.

BACKGROUND: Health status measures are now being used for evaluating the performance of health care organizations. Trends in SF-36 component scores have previously been examined for Medicare-managed care plans but not for providers serving Medicare fee-for-service (FFS) beneficiaries. We compared 2 methods for evaluating the performance of Medicare FFS providers, the Research Triangle Institute (RTI) and Health Assessment Laboratory (HAL) methods. METHODS: Data were collected from 6547 Medicare FFS beneficiaries in 10 cohorts. SF-36 Physical Health (PCS) and Mental Health (MCS) component scores were computed at baseline and after a 2-year follow-up. The RTI approach predicts follow-up scores based on a standard care regression model. The HAL approach determines the percentage of beneficiaries whose status is the "same or better" at follow-up. Both approaches then compare observed to expected scores for each cohort. RESULTS: The HAL method did not detect any statistically significant differences for the PCS; the RTI method detected a small PCS difference for one cohort. The HAL method identified 4 cohorts that had significantly higher MCS scores; the RTI approach identified one cohort with significantly lower scores. CONCLUSIONS: The 2 approaches provided consistent assessments of provider performance for the PCS but not for the MCS. The differences in the MCS results may have been affected by differing treatment of deaths during follow-up. The HAL approach disregards deaths for the MCS, whereas the RTI method imputes values for death. Implications of using self-reported health status for monitoring provider performance are discussed.

Race/ethnic disparities in utilization of lifesaving technologies by Medicare ischemic heart disease beneficiaries.

OBJECTIVE: The objective of this study was to explain race/ethnic disparities in hospitalizations, utilization of high-technology diagnostic and revascularization services, and mortality of elderly ischemic heart disease (IHD) patients. DESIGN: A longitudinal Medicare claims database of all Part A hospital and Part B physician services provided elderly patients admitted for IHD in 1997 is used to construct admission, utilization, and mortality rates for whites and blacks, Asians, Hispanics, and American Indians. Z-scores are used to test differences in rates between whites and minorities at the 99% confidence level. Logistic and proportional hazard models are used to predict the likelihood of revascularization and its effects on race/ethnic survival 2 years postdischarge. SETTING: The setting of this study was an acute hospital supplemented by all ambulatory Part B outpatient providers of care. PATIENTS/PARTICIPANTS: Participants included all 700,000 age 65+ Medicare beneficiaries in fee-for-service identified with IHD as a primary diagnosis on admission in 1997. MEASUREMENTS AND MAIN RESULTS: Whites were 26% more likely to be admitted for IHD than blacks, 50% more likely than Asians, 5% more than American Indians, but 3% less likely than Hispanics. Once admitted, elderly blacks and American Indians undergo invasive diagnostic and surgical revascularization far less often than whites (P < 0.01), although blacks are equally as likely as whites to be admitted to an open heart hospital. Controlling for other factors, whites reduce their 2-year mortality by 20% by undergoing revascularization 41% of the time. Blacks gain only 11% as a result of much lower rates and gains to revascularization than whites. Asians and Hispanics were slightly more likely than whites to undergo revascularization but gain less than whites from the procedure. CONCLUSIONS: Despite having similar Medicare health insurance coverage, elderly utilization and IHD mortality rates differ markedly not only between whites and minorities, but within minority groups themselves. A large, nationally representative survey of physicians and patients is needed to distinguish between systemwide "failures to refer" and patient "aversions to surgery" as explanations for lower black rates of surgical interventions.

The prevalence of major depression or dysthymia among aged Medicare Fee-for-Service beneficiaries.

RESEARCH OBJECTIVE: Estimates of the prevalence of major depression vary widely. Current estimates range from 2 to 14 % depending upon the definition and procedure for diagnosis. Further, most estimates are for special populations, either living in selected geographic areas or receiving specific types of medical care. A national survey of Medicare Fee-for-Service (FFS) beneficiaries provides an opportunity to assess the current level of major depression or dysthymia among a diverse population of older Americans. STUDY DESIGN: The Health Outcomes Survey (HOS) was administered to a national random sample of 1,000 Medicare FFS beneficiaries. We used the Mental Component Summary (MCS) measure of the SF-36 to estimate the prevalence of major depression or dysthymia. Logistic regression was used to examine associated factors. RESULTS: The response rate was 61.7%. Using an MCS score of 42 or lower, prevalence of major depression or dysthymia was estimated to be 25% for respondents age 65 years and older. Logistic regression analysis revealed that the likelihood of major depression or dysthymia was associated with years of education (Odds Ratio (OR) = 0.87), difficulties performing activities of daily living (OR = 1.72), and Medicaid enrollment (OR = 2.67). CONCLUSIONS: The results revealed that one-quarter of the respondents reported mental health problems consistent with major depression or dysthymia. This is higher than previously reported. Like previous studies, years of education, physical impairment, and poverty are strong predictors of major depression or dysthymia. The high rate of major depression or dysthymia implies there may be considerable unmet need among elderly Medicare FFS beneficiaries for diagnosing and treating mental illness.