Abstract：
OBJECTIVE:To examine the settings of simulation evidence supporting use of nonlinear two-stage residual inclusion (2SRI) instrumental variable (IV) methods for estimating average treatment effects (ATE) using observational data and investigate potential bias of 2SRI across alternative scenarios of essential heterogeneity and uniqueness of marginal patients. STUDY DESIGN:Potential bias of linear and nonlinear IV methods for ATE and local average treatment effects (LATE) is assessed using simulation models with a binary outcome and binary endogenous treatment across settings varying by the relationship between treatment effectiveness and treatment choice. PRINCIPAL FINDINGS:Results show that nonlinear 2SRI models produce estimates of ATE and LATE that are substantially biased when the relationships between treatment and outcome for marginal patients are unique from relationships for the full population. Bias of linear IV estimates for LATE was low across all scenarios. CONCLUSIONS:Researchers are increasingly opting for nonlinear 2SRI to estimate treatment effects in models with binary and otherwise inherently nonlinear dependent variables, believing that it produces generally unbiased and consistent estimates. This research shows that positive properties of nonlinear 2SRI rely on assumptions about the relationships between treatment effect heterogeneity and choice.
journal_name
Health Serv Resjournal_title
Health services researchauthors
Chapman CG,Brooks JMdoi
10.1111/1475-6773.12463subject
Has Abstractpub_date
2016-12-01 00:00:00pages
2375-2394issue
6eissn
0017-9124issn
1475-6773journal_volume
51pub_type
杂志文章abstract：OBJECTIVE:To determine if the incidence of psychiatric emergencies involving drugs or alcohol supports the argument that mentally ill persons contribute to elevated mortality during the days following disbursement of private earnings and public income transfers. STUDY DESIGN:Interrupted time-series using Box-Jenkins m...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：2000-10-01 00:00:00
abstract：OBJECTIVE:Patients discharged from a self-managed nursing unit are compared with patients from traditionally managed units on postdischarge outcomes. DATA SOURCES AND STUDY SETTING:Primary data were collected on patients discharged from eight nursing units in three clinical areas in one hospital from August through No...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1994-10-01 00:00:00
abstract：:The concept of validity as it applies to measures of health and health status is examined in the context of a set of standard, widely accepted definitions of validity. Criterion validity is shown to be irrelevant to health status measures because of the lack of a single specific, directly observable measure of health ...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1976-01-01 00:00:00
abstract：OBJECTIVE:To describe the key features of the first three Cash and Counseling demonstration programs and identify those which the programs have in common and those on which they differ. STUDY SETTING:Demonstration Cash and Counseling programs in Arkansas, Florida, and New Jersey. DATA SOURCES:Interviews with program ...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2006.00677.x
更新日期：2007-02-01 00:00:00
abstract：OBJECTIVE:To quantify the impact of multiyear utilization of preventive dental services on downstream dental care utilization and expenditures for children. DATA SOURCES/STUDY SETTING:We followed 0.93 million Medicaid-enrolled children who were 3-6 years old in 2005 from 2005 to 2011. We used Medicaid claims data of A...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.12811
更新日期：2018-10-01 00:00:00
abstract：OBJECTIVE:To examine changes in children's albuterol use and out-of-pocket (OOP) costs in response to increased copayments after the Food and Drug Administration banned inhalers with chlorofluorocarbon (CFC) propellants. SETTING:Four health maintenance organizations (HMOs), two that increased copayments for albuterol ...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.12615
更新日期：2018-02-01 00:00:00
abstract：OBJECTIVE:This commentary summarizes the methods and topics addressed in the special issue of HSR focused on linkage of United States Department of Veterans Affairs (VA) and non-VA datasets. The issue illustrates that researchers are increasingly linking diverse datasets as a valuable method for obtaining outcomes, tre...
journal_title：Health services research
pub_type：
doi：10.1111/1475-6773.13081
更新日期：2018-12-01 00:00:00
abstract：OBJECTIVE:We investigate the factors driving the downward trend in employer sponsored health insurance (ESI) coverage between 1999 and 2002 for low- and middle-income workers, and assess their insurance options in the absence of ESI coverage. DATA:We use the 1999 and 2002 rounds of the National Survey of America's Fam...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2006.00590.x
更新日期：2006-12-01 00:00:00
abstract：OBJECTIVE:To produce cost estimates of proposed health insurance benefit mandates for the California legislature. DATA SOURCES:The 2001 California Health Interview Survey, 2002 Kaiser Family Foundation/Health Research and Education Trust California Employer Health Benefits Survey, Milliman Health Cost Guidelines, and ...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2006.00518.x
更新日期：2006-06-01 00:00:00
abstract：OBJECTIVE:To examine trends in employer-sponsored health insurance coverage rates and its associated components between 2000 and 2008, to provide a baseline for later evaluations of the Affordable Care Act, and to provide information to policy makers as they design the implementation details of the law. DATA SOURCES:P...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2011.01368.x
更新日期：2012-06-01 00:00:00
abstract：OBJECTIVE:To test whether nonprofit, for-profit, or government hospital ownership affects medical service provision in rural hospital markets, either directly or through the spillover effects of ownership mix. DATA SOURCES/STUDY SETTING:Data are from the American Hospital Association, U.S. Census, CMS Healthcare Cost ...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2011.01280.x
更新日期：2011-10-01 00:00:00
abstract：BACKGROUND:Patients are treated using observation services (OS) when their care needs exceed standard outpatient care (i.e., clinic or emergency department) but do not qualify for admission. Medicare and other private payers seek to limit this care setting to 48 hours. DATA SOURCE/STUDY SETTING:Healthcare Cost and Uti...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.12143
更新日期：2014-06-01 00:00:00
abstract：OBJECTIVE:To test how Certificate of Need laws affect all-cause mortality in the United States. DATA SOURCES:The data of 1992-2011 all-cause mortality are from the Center for Disease Control's Compressed Mortality File; control variables are from the Current Population Survey, Behavioral Risk Factor Surveillance Syste...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.12619
更新日期：2018-02-01 00:00:00
abstract：OBJECTIVE:To test the hypothesis that a greater commitment to strategic adaptation, as exhibited by more extensive implementation of a subacute/rehabilitation care strategy in nursing homes, will be associated with superior performance. DATA SOURCES:Online Survey, Certification, and Reporting (OSCAR) data from 1997 to...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2006.00649.x
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:To test for differences in patient outcomes when hospital and post-acute care (PAC) providers participate in accountable care organizations (ACOs). DATA/SETTING:Using Medicare claims, we examined changes in readmission, Medicare spending, and length of stay among patients admitted to ACO-participating hospit...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.13023
更新日期：2018-12-01 00:00:00
abstract：:In late 1982, as an alternative to Medicaid, Arizona implemented a prepaid, competitively bid medical care program--the Arizona Health Care Cost Containment System (AHCCCS). Before its introduction, the poor had been cared for primarily by a network of county-supported centers. Impact of the AHCCCS initiative was exam...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1985-08-01 00:00:00
abstract：:We examined the effect of the Delphi iteration procedure in developing explicit criteria for ambulatory care assessment. Practicing internists chose items they believed to be essential with regard to the care of certain specified conditions. The initial responses were tabulated and "fed-back" to the participants. The ...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1979-01-01 00:00:00
abstract：OBJECTIVE:To examine the benefits of a high-performance work environment (HPWE) for employees, patients, and hospitals. STUDY SETTING:Forty-five adult, medical-surgical units in nine hospitals in upstate New York. STUDY DESIGN:Cross-sectional study. DATA COLLECTION:Surveys were collected from 1,527 unit-based hospit...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2012.01438.x
更新日期：2013-02-01 00:00:00
abstract：OBJECTIVE:To examine implementation of the Qualified Medicare Beneficiary (QMB) and Specified Low-Income Medicare Beneficiary (SLMB) programs, enacted in 1988. The article summarizes the origin of the QMB and SLMB programs, describes what we have learned about QMB and SLMB enrollment in state Medicaid programs and, des...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：2000-04-01 00:00:00
abstract：OBJECTIVE:To estimate the impact of implementing prescription drug monitoring program (PDMP) best practices on prescription opioid use. DATA SOURCES:2007-2012 Medicare claims for noncancer pain patients, and PDMP attributes from the Prescription Drug Abuse Policy System. STUDY DESIGN:We derived PDMP composite scores ...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.13197
更新日期：2019-10-01 00:00:00
abstract：:This article examines forces that influence physicians to change the percentage of their admissions to a hospital (loyalty) and to cease admitting patients to a hospital altogether (exit). Because physicians are both members of a hospital and consumers of its services, their admitting patterns can be described using m...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1992-04-01 00:00:00
abstract：OBJECTIVE:To determine if the availability of public ambulatory clinics affects preventable hospitalization (PH) rates of low-income and elderly populations. DATA SOURCES:PH rates were calculated using elderly and low-income discharges from 1995-97 Virginia hospital discharge data. Other data sources include the 1990 ...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：OBJECTIVE:To describe the insurance status of workers at small businesses, and to describe the status of uninsured persons by the employment characteristics (employment status, firm size, and whether the employer offers insurance) of the head of household. DATA SOURCES:Data from the March and February 2001 Current Pop...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2005.00467.x
更新日期：2006-02-01 00:00:00
abstract：OBJECTIVE:This paper analyzes whether the rise in managed care during the 1990s caused the increase in hospital concentration. DATA SOURCES:We assemble data from the American Hospital Association, InterStudy and government censuses from 1990 to 2000. STUDY DESIGN:We employ linear regression analyses on long differenc...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2006.00601.x
更新日期：2007-02-01 00:00:00
abstract：OBJECTIVE:To evaluate the role of health plan benefit design and price on consumers' decisions to purchase health insurance in the nongroup market and their choice of plan. DATA SOURCES AND STUDY SETTING:Administrative data from the three largest nongroup insurers in California and survey data about those insured in t...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/j.1475-6773.2007.00726.x
更新日期：2007-12-01 00:00:00
abstract：:The relationship between income and health is well established: the higher an individual's income, the better his or her health. However, recent research suggests that health may also be affected by the distribution of income within society. We outline the potential mechanisms underlying the so-called relative income ...
journal_title：Health services research
pub_type： 杂志文章,评审
doi：
更新日期：1999-04-01 00:00:00
abstract：OBJECTIVE:To examine reported experiences of gender discrimination and harassment among US women. DATA SOURCE AND STUDY DESIGN:Data come from a nationally representative, probability-based telephone survey of 1596 women, conducted January-April 2017. METHODS:We calculated the percentages of women reporting gender dis...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.13217
更新日期：2019-12-01 00:00:00
abstract：OBJECTIVE:This study evaluates the relationship between hospital and regional characteristics and the prevalence of mobile computed tomography in rural hospitals. DATA SOURCES AND STUDY SETTING:Primary data were gathered from all rural hospitals in eight northwestern states (n = 471) in 1991. Secondary data sources in...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1996-06-01 00:00:00
abstract：OBJECTIVE:This article compares judgments about the treatment of Dukes' B2 and C colon cancer made by general surgeons to those of internists and family practitioners. Physician and practice variables were specialty, affiliation with a Community Clinical Oncology Program (CCOP) hospital, time in practice, professional ...
journal_title：Health services research
pub_type： 杂志文章
doi：
更新日期：1996-04-01 00:00:00
abstract：OBJECTIVE:To determine how the inclusion of post-acute evaluation and management (E&M) services as primary care affects assignment of Medicare beneficiaries to accountable care organizations (ACOs). DATA SOURCES:Medicare claims for a random 5 percent sample of 2009 Medicare beneficiaries linked to American Medical Ass...
journal_title：Health services research
pub_type： 杂志文章
doi：10.1111/1475-6773.12032
更新日期：2013-08-01 00:00:00
