Impact of a Patient Navigator Program on Hospital-Based and Outpatient Utilization Over 180 Days in a Safety-Net Health System.

BACKGROUND: With emerging global payment structures, medical systems need to understand longer-term impacts of care transition strategies. OBJECTIVE: To determine the effect of a care transition program using patient navigators (PNs) on health service utilization among high-risk safety-net patients over a 180-day period. DESIGN: Randomized controlled trial conducted October 2011 through April 2013. PARTICIPANTS: Patients admitted to the general medicine service with ≥1 readmission risk factor: (1) age ≥ 60; (2) in-network inpatient admission within prior 6 months; (3) index length of stay ≥ 3 days; or (4) admission diagnosis of heart failure or (5) chronic obstructive pulmonary disease. The analytic sample included 739 intervention patients, 1182 controls. INTERVENTIONS: Through hospital visits and 30 days of post-discharge telephone outreach, PNs provided coaching and assistance with medications, appointments, transportation, communication with primary care, and self-care. MAIN MEASURES: Primary outcomes: (1) hospital-based utilization, a composite of ED visits and hospital admissions; (2) hospital admissions; (3) ED visits; and (4) outpatient visits. We evaluated outcomes following an index discharge, stratified by patient age (≥ 60 and < 60 years), using a 180-day time frame divided into six 30-day periods. KEY RESULTS: The PN program produced starkly different outcomes by patient age. Among older PN patients, hospital-based utilization was consistently lower than controls, producing an 18.7% cumulative decrease at 180 days (p = 0.038); outpatient visits increased in the critical first 30-day period (p = 0.006). Among younger PN patients, hospital-based utilization was 31.7% (p = 0.038) higher at 180 days, largely reflecting sharply higher utilization in the initial 30 days (p = 0.002), with non-significant changes thereafter; outpatient visits experienced no significant changes. CONCLUSIONS: A PN program serving high-risk safety-net patients differentially impacted patients based on age, and among younger patients, outcomes varied over time. Our findings highlight the importance for future research to evaluate care transition programs among different subpopulations and over longer time periods.

A Patient Navigator Intervention to Reduce Hospital Readmissions among High-Risk Safety-Net Patients: A Randomized Controlled Trial.

BACKGROUND: Evidence-based interventions to reduce hospital readmissions may not generalize to resource-constrained safety-net hospitals. OBJECTIVE: To determine if an intervention by patient navigators (PNs), hospital-based Community Health Workers, reduces readmissions among high risk, low socioeconomic status patients. DESIGN: Randomized controlled trial. PARTICIPANTS: General medicine inpatients having at least one of the following readmission risk factors: (1) age ≥60 years, (2) any in-network inpatient admission within the past 6 months, (3) length of stay ≥3 days, (4) admission diagnosis of heart failure, or (5) chronic obstructive pulmonary disease. The analytic sample included 585 intervention patients and 925 controls. INTERVENTIONS: PNs provided coaching and assistance in navigating the transition from hospital to home through hospital visits and weekly telephone outreach, supporting patients for 30 days post-discharge with discharge preparation, medication management, scheduling of follow-up appointments, communication with primary care, and symptom management. MAIN MEASURES: The primary outcome was in-network 30-day hospital readmissions. Secondary outcomes included rates of outpatient follow-up. We evaluated outcomes for the entire cohort and stratified by patient age >60 years (425 intervention/584 controls) and ≤60 years (160 intervention/341 controls). KEY RESULTS: Overall, 30-day readmission rates did not differ between intervention and control patients. However, the two age groups demonstrated marked differences. Intervention patients >60 years showed a statistically significant adjusted absolute 4.1% decrease [95% CI: -8.0%, -0.2%] in readmission with an increase in 30-day outpatient follow-up. Intervention patients ≤60 years showed a statistically significant adjusted absolute 11.8% increase [95% CI: 4.4%, 19.0%] in readmission with no change in 30-day outpatient follow-up. CONCLUSIONS: A patient navigator intervention among high risk, safety-net patients decreased readmission among older patients while increasing readmissions among younger patients. Care transition strategies should be evaluated among diverse populations, and younger high risk patients may require novel strategies.

Feasibility and evaluation of a pilot community health worker intervention to reduce hospital readmissions.

OBJECTIVE: To pilot-test the feasibility and preliminary effect of a community health worker (CHW) intervention to reduce hospital readmissions. DESIGN: Patient-level randomized quality improvement intervention. SETTING: An academic medical center serving a predominantly low-income population in the Boston, Massachusetts area and 10 affiliated primary care practices. PARTICIPANTS: Medical service patients with an in-network primary care physician who were discharged to home (n = 423) and had one of five risk factors for readmission within 30 days. INTERVENTION: Inpatient introductory visit and weekly post-discharge telephonic support for 4 weeks to assist patient in coordinating medical visits, obtaining and using medications, and in self-management. MAIN OUTCOME MEASURES: Number of completed CHW contacts; CHW-reported barriers and facilitators to assisting patients; primary care, emergency department and inpatient care use. RESULTS: Roughly 70% of patients received at least one post-discharge CHW call; only 38% of patients received at least four calls as intended. Hospital readmission rates were lower among CHW patients (15.4%) compared with usual care (17.9%); the difference was not statistically significant. CONCLUSION: Under performance-based payment systems, identifying cost-effective solutions for reducing hospital readmissions will be crucial to the economic survival of all hospitals, especially safety-net systems. This pilot study suggests that with appropriate supportive infrastructure, hospital-based CHWs may represent a feasible strategy for improving transitional care among vulnerable populations. An ongoing, randomized, controlled trial of a CHW intervention, developed according to the lessons of this pilot, will provide further insight into the utility of this approach to reducing readmissions.

Redefining and redesigning hospital discharge to enhance patient care: a randomized controlled study.

BACKGROUND: Patients are routinely ill-prepared for the transition from hospital to home. Inadequate communication between Hospitalists and primary care providers can further compromise post-discharge care. Redesigning the discharge process may improve the continuity and the quality of patient care. OBJECTIVES: To evaluate a low-cost intervention designed to promptly reconnect patients to their "medical home" after hospital discharge. DESIGN: Randomized controlled study. Intervention patients received a "user-friendly" Patient Discharge Form, and upon arrival at home, a telephone outreach from a nurse at their primary care site. PARTICIPANTS: A culturally and linguistically diverse group of patients admitted to a small community teaching hospital. MEASUREMENTS: Four undesirable outcomes were measured after hospital discharge: (1) no outpatient follow-up within 21 days; (2) readmission within 31 days; (3) emergency department visit within 31 days; and (4) failure by the primary care provider to complete an outpatient workup recommended by the hospital doctors. Outcomes of the intervention group were compared to concurrent and historical controls. RESULTS: Only 25.5% of intervention patients had 1 or more undesirable outcomes compared to 55.1% of the concurrent and 55.0% of the historical controls. Notably, only 14.9% of the intervention patients failed to follow-up within 21 days compared to 40.8% of the concurrent and 35.0% of the historical controls. Only 11.5% of recommended outpatient workups in the intervention group were incomplete versus 31.3% in the concurrent and 31.0% in the historical controls. CONCLUSIONS: A low-cost discharge-transfer intervention may improve the rates of outpatient follow-up and of completed workups after hospital discharge.

Long-Term Impact of a Postdischarge Community Health Worker Intervention on Health Care Costs in a Safety-Net System.

OBJECTIVE: Patient navigators (PNs) may represent a cost-effective strategy to improve transitional care and reduce hospital readmissions. We evaluated the impact of a PN intervention on health system costs in the 180 days after discharge for high-risk patients in a safety-net system. DATA SOURCE/SETTING: Primary and secondary data from an academic safety-net health system. STUDY DESIGN: We compared per-patient utilization and costs, overall and by age, for high-risk, medical service patients randomized to the PN intervention relative to usual care between October 2011 and April 2013. Intervention patients received hospital visits and telephone outreach from PNs for 30 days after every qualifying discharge. DATA COLLECTION/EXTRACTION METHODS: We used administrative and electronic encounter data, and a survey of nurses; costs were imputed from the Medicare fee schedule. PRINCIPAL FINDINGS: Total costs per patient over the 180 days postindex discharge for those aged ≥60 years were significantly lower for PN patients compared to controls ($5,676 vs. $7,640, p = .03); differences for patients aged <60 ($9,942 vs. $9,046, p = .58) or for the entire cohort ($7,092 vs. $7,953, p = .27) were not significant. CONCLUSIONS: Patient navigator interventions may be useful strategies for specific groups of patients in safety-net systems to improve transitional care while containing costs.