You wrote the prescription, but will it get filled?

PURPOSE: Despite numerous studies on adherence, there is little research on the first-fill rate of antihypertensive prescriptions. Our study took advantage of the recent increase in electronic prescribing (e-prescribing) and used data from e-prescribing physicians to determine the first-fill failure rate of antihypertensive prescriptions and to assess which factors predict first-fill failure. METHODS: This retrospective study reviewed claims from a Mid-Atlantic managed care organization (MCO). We included adult members with continuous medical and pharmacy coverage who were prescribed an antihypertensive in 2008 by an e-prescribing physician. First-fill failure occurred when the patient did not obtain the antihypertensive medication due to either a denial by the MCO or reversal by the dispensing pharmacist. (Pharmacists reverse claims when a patient fails to pick up a medication.) Multivariate regression analysis determined the clinical and demographic factors associated with failure to fill. RESULTS: The cohort consisted of 14,693 antihypertensive prescriptions, prescribed by 164 e-prescribing physicians for 7061 unique members. There were 2289 out of 14,693 prescriptions (15.6%) that went unfilled, affecting 24.3% of patients. Of the prescriptions not obtained, 1466 (64%) were denied by the MCO and 823 (36%) were reversed. Significant factors associated with first-fill failure were new diagnosis of hypertension, new antihypertensive agent, higher co-payment, and enrollment in a health maintenance organization or preferred provider organization. CONCLUSIONS: Patients newly diagnosed with hypertension and those prescribed a new antihypertensive were at particularly high risk for not obtaining their medication. Because nearly a quarter of patients did not obtain their initial fill of an antihypertensive prescription, future research should determine efficient and cost-effective systems to address first-fill failure in primary care.

Hypertension treatment and control among 28 physician practices across the United States: results of the Hypertension: Assessment of Treatment to Target (HATT) Study.

Chart reviews were conducted at 28 US physician practices to evaluate blood pressure (BP) management. The cross-sectional study included 8250 adult patients diagnosed with hypertension. The primary outcome variable was BP control (BP <140/90 mm Hg for nondiabetic and <130/80 mm Hg for diabetic patients). Mean body mass index was 30.9 kg/m(2), 49% were obese, 54% were women, mean age was 64.9 years, and 25% had diabetes. Mean BP was 132.2/77.8 mm Hg, and 55.8% of study participants had controlled BP. Patients with uncontrolled BP were more likely to be obese or African American, and more than twice as likely to have diabetes. Almost 1 in 5 nondiabetic patients (18%), and 38% of diabetic patients, were above goal BP by >10 mm Hg systolic or >5 mm Hg diastolic; among these patients, 36% used 0 or 1 antihypertensive medication, and 32% used 2 medications. Opportunity exists to improve BP control in this population.

Potential value of electronic prescribing in health economic and outcomes research.

Improving access and quality while reducing expenditures in the United States health system is expected to be a priority for many years. The use of health information technology (HIT), including electronic prescribing (eRx), is an important initiative in efforts aimed at improving safety and outcomes, increasing quality, and decreasing costs. Data from eRx has been used in studies that document reductions in medication errors, adverse drug events, and pharmacy order-processing time. Evaluating programs and initiatives intended to improve health care can be facilitated through the use of HIT and eRx. eRx data can be used to conduct research to answer questions about the outcomes of health care products, services, and new clinical initiatives with the goal of providing guidance for clinicians and policy makers. Given the recent explosive growth of eRx in the United States, the purpose of this manuscript is to assess the value and suggest enhanced uses and applications of eRx to facilitate the role of the practitioner in contributing to health economics and outcomes research.

Identifying barriers to hypertension care: implications for quality improvement initiatives.

The role of clinical inertia in the treatment of patients with hypertension was assessed by evaluating health care providers' knowledge, attitudes, and clinical practices regarding hypertension management. A cross-sectional survey was conducted at the Forsyth Medical Group in North Carolina. Participants were physicians (N = 18, 10 sites) and support staff (N = 20, 12 sites), who were surveyed in 2006. Physician and support staff questionnaires consisted of 29 and 15 items, respectively, and were administered by trained interviewers. Though most physicians (94%) cited familiarity with the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC-7) guidelines and affirmed that hypertension management guidelines are relevant to their patients, no physicians interviewed routinely document patient hypertension management plans. Although 1 in 3 physicians cited the inability to devote enough time to patients for the discussion of hypertension management, physicians predominantly cited patient- and support-staff- related factors as most important to patients not attaining blood pressure (BP) goal. Patient lifestyle modification (89%), education (67%), and medication compliance (56%) were cited as the most important reasons for uncontrolled BP. Only one-third of physicians believe that clinical staff always obtain accurate BP measurements, and 61% believe that resistant hypertension is a reflection of inaccurate BP measurement. Many support staff claimed to be rushed when measuring patient BP, and 65% recommended BP competency training. Contradictions were evident between provider knowledge of hypertension management standards and how this knowledge is applied in clinical practice. Standardized collection of BP is critical to measuring clinical improvement in hypertension. Results are being utilized to develop clinical improvement initiatives including staff education and competency training.

Correlates of hypertension control in a primary care setting.

BACKGROUND: Numerous clinical trials have demonstrated reduction in cardiovascular events as a result of lowering blood pressure (BP). Despite these findings, BP control rates, especially in primary care settings, remain suboptimal. This study describes hypertension control and its predictors, using data from a sample of 631 adult patients drawn from an established primary care practice. METHODS: Data were obtained through chart review and patient survey during a 3-month period. The BP control was the outcome in a logistic regression model identifying demographic and clinical predictors of control. RESULTS: Compared to patients with low Framingham Risk Scores (FRS), individuals with moderate and high scores had reduced odds of achieving control (69% reduction, 95% confidence interval [CI] 0.19-0.65; 82% reduction, 95% CI 0.10-0.36, respectively). Being female reduced the odds of control by 61% (95% CI 0.26-0.66). Having diabetes mellitus (DM) (95% CI 0.21-0.79) or impaired fasting glucose (IFG; fasting glucose >109 but <126 mg/dL) (95% CI 0.10-0.40) reduced the odds of control by 64% and 82%, respectively. For each additional point on a physician-rated patient knowledge scale, the odds of having controlled BP increased 78% (95% CI 1.44-2.56). Each additional co-morbid condition positively associated with control (34% increase in odds, 95% CI 1.15-1.86). Age (95% CI 0.98-1.02) and body mass index (BMI) (95% CI 0.97-1.04) had no effect. CONCLUSIONS: Higher FRS, female sex, DM, and IFG negatively correlated with control. Patient knowledge and number of co-morbid conditions correlated positively. Age and BMI did not correlate with control. The most disturbing finding in our study was that higher risk patients who stand to benefit most from BP control were least likely to be controlled, despite being on more antihypertensive medications. These findings may be helpful to primary care providers in reaching patient hypertension control goals.