Patients with low socioeconomic status (SES) use more acute hospital care and less primary care than patients with high socioeconomic status. This low-value pattern of care use is harmful to these patients' health and costly to the health care system. Many current policy initiatives, such as the creation of accountable care organizations, aim to improve both health outcomes and the cost-effectiveness of health services. Achieving those goals requires understanding what drives lowvalue health care use. We conducted qualitative interviews with forty urban low-SES patients to explore why they prefer to use hospital care. They perceive it as less expensive, more accessible, and of higher quality than ambulatory care. Efforts that focus solely on improving the quality of hospital care to reduce readmissions could, paradoxically, increase hospital use. Two different profile types emerged from our research. Patients in Profile A (five or more acute care episodes in six months) reported social dysfunction and disability. Those in Profile B (fewer than five acute care episodes in six months) reported social stability but found accessing ambulatory care to be difficult. Interventions to improve outcomes and values need to take these differences into account. R educing avoidable hospitalizations and emergency department (ED) visits is a major target for cost control and quality improvement in the health care system. Hospitalizations for ambulatory care-sensitive conditions 1 -that is, acute conditions that could have been prevented or mitigated by effective ambulatory care 2 -cost approximately $30.8 billion annually.3 At each stage of care, patients with low socioeconomic status (SES) are at higher risk for being hospitalized for ambulatory care-sensitive conditions than patients of higher socioeconomic status.1-7 Low-SES patients are twice as likely as high-SES patients to require urgent ED visits, 4,8 four times more likely to require admission to the hospital, 1-3 and more likely to return to the hospital after discharge 6,7,9,10 and require multiple hospitalizations for any given illness.11 At the same time, they use 45 percent less ambulatory 12 and preventive care 13,14 than high-SES patients. Un-and underinsurance drive low-SES patients' preferential use of inpatient health services in part. 1,[15][16][17][18] But even in countries with near-universal health insurance coverage, lowvalue use persists among low-SES patients.
19This suggests that factors beyond insurance shape preferences for inpatient versus ambulatory care.The relative underuse of primary care and overuse of hospital-based care among low-SES patients, which we call "low-value use," has two negative consequences. First, these patients are less likely to gain the health benefits of primary care, 20,21 exacerbating health disparities.