Racial disparities in blood pressure control and treatment differences in a Medicaid population, North Carolina, 2005-2006.

INTRODUCTION: Racial disparities in prevalence and control of high blood pressure are well-documented. We studied blood pressure control and interventions received during the course of a year in a sample of black and white Medicaid recipients with high blood pressure and examined patient, provider, and treatment characteristics as potential explanatory factors for racial disparities in blood pressure control. METHODS: We retrospectively reviewed the charts of 2,078 black and 1,436 white North Carolina Medicaid recipients who had high blood pressure managed in primary care practices from July 2005 through June 2006. Documented provider responses to high blood pressure during office visits during the prior year were reviewed. RESULTS: Blacks were less likely than whites to have blood pressure at goal (43.6% compared with 50.9%, P = .001). Blacks above goal were more likely than whites above goal to have been prescribed 4 or more antihypertensive drug classes (24.7% compared with 13.4%, P < .001); to have had medication adjusted during the prior year (46.7% compared with 40.4%, P = .02); and to have a documented provider response to high blood pressure during office visits (35.7% compared with 30.0% of visits, P = .02). Many blacks (28.0%) and whites (34.3%) with blood pressure above goal had fewer than 2 antihypertensive drug classes prescribed. CONCLUSION: In this population with Medicaid coverage and access to primary care, blacks were less likely than whites to have their blood pressure controlled. Blacks received more frequent intervention and had greater use of combination antihypertensive therapy. Care patterns observed in the usual management of high blood pressure were not sufficient to achieve treatment goals or eliminate disparities.

A physician-friendly alternative to prior authorization for prescription drugs.

OBJECTIVE: To determine if the instant approval (IA) process differs from the traditional prior authorization (PA) process in preferred drug channeling, resultant gaps in therapy, and provider dissatisfaction. STUDY DESIGN: An interrupted time series analysis using pharmacy claims and a retrospective cohort study. METHODS: The study assessed changes in preferred drug use and subsequent cost reductions. A retrospective cohort study determined if the IA process produced fewer gaps in therapy than the PA process. Provider acceptance of the IA process was assessed using a brief survey of 240 randomly selected primary care practices. RESULTS: Market share for preferred proton pump inhibitors quadrupled from a range of 17.6% to 19.3% at baseline to 76% in the first month after implementation of the new IA policy. Most practices (81.1%) reported reduced administrative burden with the IA process. The median gaps between medication fills for patients using IA were approximately one-half those of patients using PA (P <.001) and were one-fourth in a subset of highly adherent, regularly filling patients (P <.001). CONCLUSIONS: Instant approval may be more patient friendly and prescriber friendly than PA as assessed by a proxy measure for access (gap in therapy) and physician-reported acceptance. Despite its ease of use, IA does not seem to reduce switching to preferred drugs.

Enhancing the medical homes model for children with asthma.

BACKGROUND: Medical Home is an evolving concept of patient-centered care yet little information is available on its effect on health care expenditures for children. OBJECTIVES: To quantify differences in patterns of care and costs to the North Carolina (NC) Medicaid program for children with asthma across 3 programs: fee-for-service (FFS), primary care case management (PCCM), and Medical Homes. RESEARCH DESIGN: NC Medicaid claims from 1998-2001 for children with asthma were used to examine monthly expenditures and patterns of health care use, including emergency department and hospital use. Children in the FFS program served as controls for trends in asthma care over the study period. Tests examined the potential for selection by program and fixed-effect 2-part model regressions were used to control for differences in program enrollees. SUBJECTS: Children under age 21 with asthma. MEASURES: Monthly Medicaid expenditures and measures of health service use. RESULTS: We found considerable evidence of quality improvement in patterns of care for children enrolled in both the PCCM and Medical Homes models in NC. After controlling for selection into these programs, use of maintenance as well as rescue medications increased, use of services increased, and emergency department and hospital use went down. Total spending (asthma and nonasthma related) on children in the Medical Homes program was $148 greater than spending for FFS children (95% bootstrapped confidence interval: $140-$158) per child per month and no difference in spending between Medical Homes and PCCM was detected. CONCLUSIONS: Our results indicate that enhancement of PCCM programs is one way for Medicaid programs to improve care, but may require substantial investments by states.

Recommendation for and receipt of cancer screenings among medicaid recipients 50 years and older.

BACKGROUND: Persons of low socioeconomic status, including those with Medicaid coverage, are more likely to be diagnosed with cancer at an advanced stage, but little is known about cancer screening practices among Medicaid recipients. Our objective was to identify cancer screening rates among older Medicaid recipients seen in a primary care setting, and to identify patient and physician characteristics associated with screening. METHODS: We used a stratified cluster sampling design to select a representative sample of 1951 North Carolina Medicaid recipients 50 years and older. Medical records were reviewed in the office of the primary care provider. Principal outcomes were the documentation of physician recommendations for and patient receipt of screening examinations for colorectal, breast, and cervical cancer. RESULTS: Documentation that colorectal, breast, and cervical cancer screening was recommended by the primary care provider was found for only 52.7%, 60.4%, and 51.5% of eligible patients, respectively. Documented rates of adequate screening were 28.2% for colorectal cancer, 31.7% for mammography within 2 years, and 31.6% for Papanicolaou test within 3 years. When medical record and claims data were combined, approximately half of eligible patients had evidence of screening. Length of the patient-physician relationship and African American race were positively associated with screening. CONCLUSIONS: Cancer screening rates among older Medicaid recipients fall far short of national objectives. Lack of a screening recommendation by the physician, rather than patient refusal of recommended tests, accounted for most instances of screening delinquency. Efforts to increase cancer screening rates among Medicaid recipients must address patient, physician, and organizational barriers to the routine identification and delivery of preventive services.