Abstract:
:In determining intervention effects, quality improvement researchers typically use statistical testing--Fisher's "significance testing" and/or Neyman and Pearson's "hypothesis testing." Such tests are employed in an effort to demonstrate whether or not a statistically and practically significant difference exists when comparing experimental and comparison group(s). Although power analysis is often not considered when these tests are applied, this article postulates potential benefits of including power analysis in the early stages of a study's design. Two procedures developed by Fisher and Neyman and Pearson are reviewed. Important background statistical concepts including alpha values, beta values, P values, effect sizes, and statistical power analysis are defined and discussed. A proposed statistical approach combining both Fisher and Neyman-Pearson procedures along with power analysis for sample size determination and the effect sizes is described and illustrated in a hypothetical research context. The benefits of this combination are discussed within a framework of adding value to a study design and data analysis.
journal_name
Qual Manag Health Carejournal_title
Quality management in health careauthors
Baghi Hdoi
10.1097/01.QMH.0000338551.05512.1bsubject
Has Abstractpub_date
2008-10-01 00:00:00pages
304-11issue
4eissn
1063-8628issn
1550-5154pii
00019514-200810000-00005journal_volume
17pub_type
杂志文章abstract::Today's health care programs are being scrutinized like never before and yet few clinicians and managers know how to show the value of programs without time-consuming outcomes research. This is especially true for new and innovative programs that are dependent on outside funding and may not have enough time to show an...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200109040-00005
更新日期:2001-07-01 00:00:00
abstract::The patient-centered medical home model of primary care requires increased collaboration in care delivery. Recent studies suggest that such a collaborative model of care is aided by physician leaders who practice an inclusive approach to leadership; however, they do not empirically demonstrate what such strategies loo...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0b013e31825e876a
更新日期:2012-07-01 00:00:00
abstract::Each department in a hospital is given the responsibility of managing its own day-to-day work. For the hospital as a whole to change, the individual departments must undergo a similar change. As each department aligns itself with the purposes of the whole organization, synergy is created and the hospital gradually, in...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:
更新日期:1993-10-01 00:00:00
abstract::Patient flow improvement strategies have been effective in reducing emergency department (ED) crowding, but little guidance is available on the implementation process. By using a qualitative research design, our objective was to identify common facilitators and barriers to the implementation of patient flow improvemen...
journal_title:Quality management in health care
pub_type: 杂志文章,多中心研究
doi:10.1097/QMH.0b013e318222a3b0
更新日期:2011-07-01 00:00:00
abstract:PURPOSE:Medical home care has been identified as a model for improving primary care delivery and population-specific quality and safety outcomes. Questions remain how this model affects older adult quality. This systematic review addresses 2 important questions: Are quality and safety outcomes associated with medical h...
journal_title:Quality management in health care
pub_type: 杂志文章,评审
doi:10.1097/QMH.0000000000000041
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:Although often used in health care settings as a method for continuous quality improvement, experience with the breakthrough collaborative in nonclinical health care settings is limited. In this article, we report pilot data from a social services collaborative conducted in 2007 to 2009 in Sweden, with speci...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0b013e3181c58e20
更新日期:2009-10-01 00:00:00
abstract::Our objective was to test whether the Structured Problem and Success Inventory (SPI) instrument could capture mental representations of organizational and work-related problems as described by individuals working in health care organizations and to test whether these representations varied according to organizational ...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0b013e31824d18ff
更新日期:2012-04-01 00:00:00
abstract::Many hospitals are unable to successfully implement "evidence-based practices" at the unit level. For example, consistent implementation of the central line bundle (CLB), proven to prevent catheter-related bloodstream infections (CRBSIs) is often difficult. This problem has been broadly characterized as "change implem...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0b013e31827dea7d
更新日期:2013-01-01 00:00:00
abstract::Quality is an illusive concept with different meanings to different people. Providers often define quality in terms of patient outcomes, professional standards of practice, predetermined criteria used to measure quality, and even subjective opinion. Patients describe quality in terms of the interpersonal aspects of ca...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200008040-00002
更新日期:2000-07-01 00:00:00
abstract::Given the revolutionary changes occurring in the health care industry, there is increasing agreement that academicians and practitioners must collaborate to identify and prioritize major educational outcomes for health care management. Several competency initiatives have been undertaken or completed in health care and...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200211010-00006
更新日期:2002-10-01 00:00:00
abstract::There are various methods to get some projections of health indicators that do not always produce satisfactory results. Our aim is to establish the rules for obtaining reliable projections, using simple models. In the procedure proposed here, there is no need, as in many other techniques, to directly connect the level...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:
更新日期:2006-07-01 00:00:00
abstract:OBJECTIVE:We explored the associations between opioid dose and multiple measures of pain. STUDY DESIGN AND MEASURES:Thirty-two consecutive patients admitted solely for an acute exacerbation of cancer-related pain or for surgery were followed for their entire hospital stay (115 days of pain). For each hospital day, we ...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0000000000000009
更新日期:2013-10-01 00:00:00
abstract::The physician-patient relationship is an essential part of end-of-life planning, including discussions of advance directives (AD). Physicians likely to encounter AD issues with their patients were identified and queried as to their knowledge, opinion, and experience with ADs. Though most physicians felt ADs were helpf...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200008030-00004
更新日期:2000-04-01 00:00:00
abstract::We present an approach to assessing the impact of surveillance for surgical site infections and providing feedback to surgeons on their progress, as part of continuous quality improvement. Adjusting for patient risk factors using the Standardized Mortality Ratio, there was a marked decrease over time in both SMR (1.3 ...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-199806030-00006
更新日期:1998-04-01 00:00:00
abstract:AIMS:The purpose of this quantitative descriptive correlational study was to assess for presence and degree of critical thinking skills among perioperative (OR) nurses. BACKGROUND:Critical thinking has become a multidisciplinary "buzz phrase"; however, critical thinking, reflective thinking, or mental discipline was d...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0b013e3181dafec7
更新日期:2010-04-01 00:00:00
abstract:BACKGROUND:Hospitals establish surgical assessment units to promote efficiency and improve patient experience. Surgical assessment units are believed to reduce unnecessary admissions. We evaluated a hospital's on-call surgery service without this facility to determine benefits of implementation. METHODS:All emergency ...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0000000000000236
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Multistakeholder alliances-groups of payers, purchasers, providers, and consumers that voluntarily work together to address local health goals-have increasingly been used to improve health care quality within their communities. Under the Robert Wood Johnson Foundation's Aligning Forces for Quality (AF4Q) ini...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0000000000000094
更新日期:2016-04-01 00:00:00
abstract::This article briefly describes natural induction approach to knowledge discovery, and then applies it to the problem of bad habit relapse prevention by analyzing patients' diaries. Natural induction seeks patterns in data that are in forms easy to understand and interpret, because they resemble those in which humans r...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/01.QMH.0000308640.89602.b1
更新日期:2008-01-01 00:00:00
abstract::The Agency for Health Care Policy and Research pain guidelines and implementation theories were used in this improvement initiative to ensure that evidence-based pain management reached every provider and patient in a large tertiary care hospital. Implementation strategies, products, and outcome measures are described...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-199907020-00004
更新日期:1999-01-01 00:00:00
abstract::The past decade has been marked by extensive change in the organization of health care delivery systems (the "supply side" of health care). There has been relatively less change in the nature of the health care consumer (the "demand side" of health care). The emergence of the Internet as a consumer health care technol...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200008020-00009
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVES:To identify risks associated with delivery of treatment with oral antineoplastic agents in an outpatient setting and to evaluate additional value and feasibility of engaging patients in a proactive risk analysis. METHODS:We conducted 2 separate but parallel failure mode and effects analyses (FMEAs) among pa...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0000000000000199
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:Organizational health literacy is the degree to which an organization considers and promotes the health literacy of patients. Addressing health literacy at an organizational level has the potential to have a greater impact on more health consumers in a health system than individual-level approaches. OBJECTI...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0000000000000162
更新日期:2018-04-01 00:00:00
abstract:OBJECTIVES:This article explores and describes key processes facilitating the integration of neophyte graduate nurses into safe and effective organizational systems and processes as part of a hospital's overall local clinical governance and clinical risk management (CRM) program. METHODS:This study was undertaken usin...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/01.QMH.0000316994.02039.80
更新日期:2008-04-01 00:00:00
abstract::The article describes the Breakthrough Series, a collaborative improvement model developed by the Institute for Healthcare Improvement. The model adapts and applies existing knowledge to multiple, similar sites to accomplish common aims. It has been used to address several of the most pressing issues in health care to...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-199806040-00001
更新日期:1998-09-01 00:00:00
abstract::This article proposes a new class of control charts that may be used for monitoring and improving the quality of care. Unlike conventional control charts that rely on observed performance data, these charts use risk-adjusted data in addition to the observed data. The resulting time-ordered charts are capable of reduci...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200301000-00004
更新日期:2003-01-01 00:00:00
abstract::Improvement will be constrained by the function-based organizational model found in most health care organizations. Most components of the typical organization are driven by the concept of division of labor. The organization needs to challenge the underlying assumptions and reengineer from top to bottom. Reengineering...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::The aim of this study is to empirically identify and present different kinds of practice-based improvement ideas developed in health care services. The focus is on individual placement needs, problems/issues, and the ability to organize work on the development, implementation, and institutionalization of ideas for the...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/QMH.0b013e3182134b3c
更新日期:2011-04-01 00:00:00
abstract::A lost surgical specimen prompted an investigation of both the human processes and the systemic factors involved in surgical specimen handling regarding how health care organizations approach medical error prevention and patient safety promotion. Quality improvement techniques and the conceptual error model of James R...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200110010-00006
更新日期:2001-10-01 00:00:00
abstract::Increasingly, businesses are reporting successful implementation of self-directed work teams. In health care, team-based structures in both clinical and nonclinical areas are now rapidly emerging. This paper describes the linkage between the literature of sociotechnical systems theory and current applications of self-...
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-199301020-00007
更新日期:1993-01-01 00:00:00
abstract::In 1998, the Veterans Health Administration invested in the creation of the Veterans Administration National Quality Scholars Fellowship Program (VAQS) to train physicians in new ways to improve the quality of health care. We describe the curriculum for this program and the lessons learned from our experience to date....
journal_title:Quality management in health care
pub_type: 杂志文章
doi:10.1097/00019514-200210030-00006
更新日期:2002-04-01 00:00:00