This thesis considers three physician scheduling problems in health care systems. Specifically, we focus on improvements to current physician scheduling practices through the use of mathematical modeling. In the first part of the thesis, we present a physician shift scheduling problem focusing on maximizing continuity of care (i.e., ensuring that patients are familiar with their treating physicians, and vice versa). We develop an objective scoring method for measuring the continuity of a physician schedule and combine it with a mixed integer programming model. We apply our methods to the problem faced in the pediatric intensive care unit at Children's Healthcare of Atlanta at Egleston, and show that our schedule generation approach outperforms manual methods for schedule construction, both with regards to solution time and continuity. The next topic presented in this thesis focuses on two scheduling problems: (i) the assignment of residents to rotations over a one-year period, and given that assignment, (ii) the scheduling of residents' night and weekend shifts. We present an integer programming model for the assignment of residents to rotations such that residents of the same type receive similar educational experiences. We allow for flexible input of parameters and varying groups of residents and rotations without needing to alter the model constraints. We present a simple model for scheduling 1st-year residents to night and weekend shifts. We apply these approaches to problems faced in the Department of Surgery Residency Program at Emory University School of Medicine. Rotation assignment is made more efficient through automated schedule generation, and the shift scheduling model allows us to highlight infeasibilities that occur when shift lengths exceed a certain value, and we discuss the impact of duty hour restrictions under limitations of current scheduling practices. The final topic of this thesis focuses on the assignment of physicians to various tasks while promoting equity of assignments and maximizing space utilization. We present an integer programming model to solve this problem, and we apply this model to the physician scheduling problem faced in the Department of Gynecology and Obstetrics at Emory University Hospital and generate high quality solutions very quickly.

The research is situated in a busy intensive care unit in a tertiary referral centre university hospital in Scotland. To date no research appears to have been done with a focus on handover in intensive care, across the professions involved, examining how handover is enacted. This study makes an original contribution to the practical and pedagogical aspects of handover in intensive care both in terms of the methodology used and also in terms of its findings. In order to study handover a mixed methods approach has been adopted and fieldwork has been done in the ethnographic mode. Data has been audio recorded and transcribed and analysed to explore the clinical handovers of patients by doctors and nurses in this intensive care unit. Texts of both handover, and the artefacts involved, are reviewed. Material from journals, books, lectures and websites, including those for health care professionals, patients and relatives, and those in industry are explicated. This study explores the role of material artefacts and texts, such as the intensive care-based electronic patient record, the whiteboards in the doctors’ office, and in the ward, in the enactment of handover. Through analysis of the data I explore some of the entanglements and ontologies of handover and the multiple things of healthcare: patients, information, equipment, activities, texts, ideas, diseases, staff, diagnoses, illnesses, floating texts, responsibility, a plan, a family. The doing of handover is framed theoretically through the empirical philosophy of Mol’s identification of multiple ontologies in clinical practice (Mol, 2002). Each chapter is prefaced by a poem, each of which has relevant socio-material elements embedded in it. The significance of the findings of the research for both patient care and clinical education and learning is surfaced.

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The overall aim of this thesis was to cast light on the new phenomenon of Internet-based medical consultation. This was approached by studies of the use of an Ask the doctor service, by a web survey to the users who sent enquiries to the service, and by a questionnaire to the answering physicians of their respective expericence of the service. Written communication is becoming increasingly important, not only for communication between individuals outwith health care (e.g. by email, SMS and instant messaging), but also between doctors and patients. There is an ongoing shift in the way individuals look for medical information with an increasing number going first to the Internet berfore talking with their physicians. Also, there is an increasing interest from patients in accessing Internet-based services, including text-based consultations with doctors. These consultations can be part of the regular communication between a patient and his/her doctor or be carried out without any previous relationship. Our studies of the latter consultation type emanate from the free of charge Ask the doctor service at a Swedish public health web portal, Infomedica, financed by health authorities. At the Ask the doctor service, the communication has been merely text-based and the individual using the consultation service (here called the enquirer) might have been anonymous. We followed the development of the first four years use of the service (38 217 enquiries), finding that the typical enquirer was a woman aged 21-60 years. Three quarters of the enquirers were women, thus exceeding the gender difference seen in regular health care. The service was used all times of the day and night, seven days a week, and it was most used in densely populated areas as defined from postal codes. The enquiries submitted to the service included a broad variety of medical issues. Most enquirers asked on their own behalf. Almost half of the enquiries concerned a matter not previously evaluated by a medical professional. Only a few were frequent enquirers. The service was used e.g. for a primary evaluation of a medical problem, for getting more information on a medical issue under treatment, and for a second opinion. The most common reasons for turning to a doctor on the Internet were convenience, wish for anonymity and that doctors were experinced too busy. In free text a considerable number of participants expressed discontent and communication problems with a previous doctor as a reason to turn to the Ask the doctor service. Many participants expressed a view of the service as a complement to regular health care, and the majority were satisfied with the answer. Nearly half of the participants in the web survey stated that they received sufficient information in their answer and that they would not pursue their question further. The family physicians answering the enquiries at the Ask the doctor service were stimulated and challenged by the new task, in spite of the limitations caused by the lack of personal meetings and physical examinations. The opportunity to reflect on the answer before replying was appreciated, and the task was regarded as having a high educational value for themselves. The Internet not only allows easy access to medical information but also to medical consultation – to date mostly text-based. It is probable that in the near future an increasing number of doctors will adopt text-based communication via the Internet to be a natural part of their communication with patients. Therefore, training in text-based communication and carrying out Internet consultations should be integrated into the curricula of medical schools and of continuous professional development. Ethical guidelines should be established.

Thesis (M.A.)--University of Stellenbosch, 2000. / ENGLISH ABSTRACT: This paper examines aspects of power within the physicianpatient relationship. The historical development of the physician-patient relationship is briefly reviewed and some of the complexities of the relationship highlighted. It is shown that, historically, there is no imperative for the physician to consider only the interests of the patient and it has always been acceptable to consider the interests of a third party, such as the State or an employer - essentially the interests of whoever is paying the physician. The classical sources of power are then considered. These sources include legitimate power, coercive power, information power, reward power, expert power, referent power, economic power, indirect power, associative power, group power, resource power and gender power. Other approaches to power are also considered such as principle-centred power as described by Covey, power relationships as explained by Foucault, the power experience as described by McClelland and an analysis of power as expounded by Morriss. The various sources of power are then considered specifically within the physician-patient relationship to determine: if this particular type of power is operative in the physicianpatient relationship, and if so if it operates primarily to the advantage of the physician or the advantage of the patient. A simple method of quantifying power is proposed. Each form of power operative in the physician-patient relationship is then considered and graphically depicted in the form of a bar chart. Each form of power is shown as a bar and bars are added to the chart to 'build up' an argument which demonstrates the extent of the power disparity between physician and patient. It is clearly demonstrated that all forms of power operate to the advantage of the physician and in those rare circumstances where the patient is able to mobilize power to his/her advantage, the physician quickly calls on other sources of power to re-establish the usual, comfortable, power distance. Forms of abuse of power are mentioned. Finally, the ethical consequences of the power disparity are briefly considered. Concern is expressed that the power disparity exists at all but this is offset by the apparent need for society to empower physicians. Conversely, consideration is given to various societal developments which are intended to disempower physicians, particularly at the level of the general practitioner. Various suggestions are made as to how the power relationships will develop in future with or without conscious effort by the profession to change the relationship. / AFRIKAANSE OPSOMMING: Hierdie voordrag ondersoek aspekte van mag in die verwantskap tussen pasiënt en geneesheer. Die historiese ontwikkeling van die verwantskap word kortliks hersien en 'n kort beskrywing van die ingewikkeldheid van die verwantskap word uitgelig. Vanuit 'n historiese oogpunt, word 'n geneesheer nie verplig om alleenlik na die belange van die pasiënt om te sien nie en was dit nog altyd aanvaarbaar om die belange van 'n derde party soos die Staat of 'n werkgewer se belange to oorweeg - hoofsaaklik die belange van wie ookal die geneesheer moet betaal. Die tradisionele bronne van mag word oorweeg. Hierdie bronne sluit in: wetlike mag of 'gesag', die mag om te kan dwing, inligtingsmag, vergoedingsmag, deskundigheidsmag, verwysingsmag, ekonomiesemag, indirektemag, vereeningingsmag, groepsmag, bronnemag en gelslagsmag. Alternatiewe benaderings word ook voorgelê, naamlik die beginsel van etiese mag soos deur Covey beskryf, krag in menslike verhoudings soos deur Foucault, die ondervinding van krag soos beskryf deur McClelland en 'n ontleding van krag soos deur Morriss verduidelik. Hierdie verskillende mag/gesagsbronne word spesifiek met betrekking tot die geneesheer-pasiënt verhouding uiteengesit om te besluit: of hierdie tipe mag aktief is tussen geneesheer en pasiënt, en indien wel, werk dit tot die voordeel van die geneesheer of die pasiënt. 'n Eenvoudige sisteem vir die meting van mag/gesag word voorgestel. Die bronne word individueeloorweeg en gemeet en die resultaat in 'n grafiese voorstelling voorgelê op so 'n wyse dat 'n argument daardeur 'opgebou' word om die verskille van van mag/gesag tussen geneesheer en pasiënt uit te wys. Dit word duidelik uiteengesit dat alle vorms van mag/gesag ten gunste van die geneesheer werk. Kommer is getoon dat hierdie magsverskil werklik bestaan, asook die snaakse teenstelling dat die gemeenskap wil eintlik die geneesheer in "n magsposiesie plaas. Die etiese gevolge van hierdie ongebalanseerde verwantskap, asook die moontlikheid van wangebruik van hierdie mag word ook genoem. Verskillende gemeenskaplike ontwikkelinge wat die mag van die geneesheer wil wegneem word geidentifiseer, meestalop die vlak van die algmene praktisyn. Verskeie voorstelle vir toekomstige ontwikkeling van die verwantskap word voorgelê, met of sonder spesifieke pogings van die professie om die verwantskap te verbeter.

The medical profession in recent decades has made culture and cross-cultural competence an issue for patient – physician relationships. Many in the profession attribute the necessity of cross-cultural competence to increased diversity, globalization, and health disparities; however, a historical analysis of medicine indicates that culture’s relevancy for health care and outcome is not new. The rise of clinics, which can be traced to 17th century France, the professionalization of physicians in 18th century U.S., and the civil rights movement of the 20th century illustrate that medicine, throughout its history, has grappled with culture and health. While medicine has a history of discussing cultural issues, the profession has not defined culture cogently. Medicine’s ambivalence in defining culture raises questions about how effectively medical educators prepare residents to be cross-culturally competent. Some medical educators have expressed that many didactic and experiential efforts result in stereotyping patients. Definitions of culture and their impact on stereotyping patients are the central problems of this study. Specifically, this study hypothesized that cultural beliefs impact ones willingness to accept stereotypes. Thus, this study sought to learn how faculty members and residents define culture. Faculty members also were compared to residents to glean the impact of cross-cultural education. This study used an explanatory mixed method design where quantitative and qualitative methods work complementarily to examine a complex construct like culture. A valid and reliable survey provided quantitative data to compare the two groups, while open-ended questions and interviews with faculty members provided context. The statistical results reveal that faculty members and residents share a philosophy of culture; however, when the two groups’ definitions are contextualized, they have many different beliefs. Differences also emerged with respect to predictability; cultural beliefs predict stereotyping among residents, but not faculty members. Faculty members attribute these differences to experiences, while residents believe that they do not learn about culture during their professional education.

<p>There is no common understanding on what constitutes good sick-listing, a frequent and problematic task for many physicians, especially general practitioners (GPs) and orthopaedic surgeons. Aiming to achieve a deeper understanding of sick-listing practices, 19 GPs (I, III) and 18 orthopaedic surgeons (II) in four counties were interviewed, and data analysed qualitatively for views on good sickness certification and barriers to desired practice. Data from a survey of all 7665 physicians in two counties on emotionally straining problems in sickness certification (IV) was analysed quantitatively. </p><p>Some GPs exposed narrow views of sick-listing, where their responsibility was limited to issuing a certificate, while GPs with the most inclusive view had a perspective of the patient’s total life-situation and aimed to help patients shoulder their own responsibility (I). The orthopaedic surgeons´ perceptions of good sick-listing were mainly related to their views on their role in the health-care system. Some perceived their responsibility as confined to the orthopaedic clinic only, while others had the ultimate goal of helping the patient to become well functioning in life with regained work capacity – by means of surgery <i>and</i> proper management of sick-listing (II). </p><p>Difficulty handling conflicting opinions was a barrier to good sickness certification for GPs (III), and problematic for about 50% of all physicians and about 80% of GPs (IV). Orthopaedic surgeons’ handling of such situations varied from being directed by the patient, via compromising, to being directed by professional judgement (II). Other barriers included poor stakeholder collaboration (III). GPs with a workplace-policy on sickness certification reported fewer conflicts and less worry of getting reported to the disciplinary board in relation to sick-listing (IV).</p><p>Understanding physicians’ underlying views on and barriers to practicing “good sick-listing” can inform efforts to change physician practice. Communications skills training in handling sick-listing situations with conflicting opinions is recommended.</p>

The correlation between social style and career satisfaction among emergency physicians was investigated. An e-mail survey was sent to a random sample of 1,000 members of the American College of Emergency Physicians in practice for at least three years; 707 had valid e-mail addresses. A twenty-item behavioral style survey instrument and a five-item career satisfaction scale were used. The study incorporated prenotification and reminder e-mails. Valid responses were obtained from 329 physicians (46.5%). No correlation was shown between social style and career satisfaction. Problems with both survey instruments were discovered. Survey respondents were unhappy with their careers, with an average satisfaction of 4.03, 1 being very satisfied, 5 very dissatisfied. Areas for future study include redoing the study using different survey instruments.

Emergency department (ED) overcrowding has been a common complaint in Emergency Medicine in Canada for many years. Its adverse effects of prolonged waiting times cause patient dissatisfaction and unsafety. Previous studies indicate that adding a physician in triage (PIT) can increase accuracy and efficiency in the initial process of patient evaluation. However, the scientific evidence of the PIT impact on ED is far away from sufficient before its widespread implementation. This research is to search solutions using PIT to identify areas of improvement for the ED patient flow, based upon a validated discrete-event simulation (DES) model. As an efficient decision-making tool, the DES model also helps to develop an understanding of the current ED performance and quantitatively test various design alternatives for ED operations. / February 2017

Background and Purpose A debate over the practice of physician self-referral has been ongoing in health care since the 1980s. At issue is the practice of physicians who refer patients to facilities in which they share a financial interest, a phenomenon known as referral for profit. Physician investment or ownership interest in ancillary (e.g., physical therapy) services has been shown to have an impact on utilization rates, costs, access to care, and quality of care. What has not been identified in previous research is the influence of physicians‘ selective referral on competing clinics, particularly the hospital-based outpatient centers that share their health care markets. The purpose of this research was to examine the relationship between the emergence of orthopaedic physician owned physical therapy services (POPTS) and changes in physical therapy referrals made to two groups of not-for-profit, hospital-based outpatient physical therapy (OPPT) centers in one health care market. Methods This study examined the referrals made by orthopaedic physicians to two large hospital systems in the Orlando, Florida, outpatient physical therapy market between 1999 and 2007. This study was conducted using existing proprietary databases maintained by the Orlando Regional Healthcare System (ORHS) and Florida Hospital System (FHS), as well as phone surveys conducted by the primary investigator. Information regarding the orthopaedic physicians‘ ownership status and the patients‘ payer types was combined into analyses to determine if physician status was related to the number of physical therapy patients from each payer type referred, or the number of total referrals made to the hospital-based outpatient physical therapy facilities. Comparisons were made between physicians who became owners of physical therapy services during the study period and physicians who never became owners of physical therapy services. Mixed Linear Models (MLM) were used to test for the effects of physician ownership and the combined influence of physician ownership and payer type on referrals for OPPT. Point estimates and 95% confidence intervals were calculated for the mean differences between Group 1 and Group 3 physicians for changes in OPPT referrals over time. The analyses were conducted first with samples of physicians who met a minimum criterion of ten referrals within the first year of data included in the data sets. Use of this criterion resulted in a small pool of physicians who qualified for inclusion in the testing. Data were compared between years 1 and 5 and then between years 1 and 2 versus 4 and 5. The criterion for physicians‘ inclusion was revised for post hoc analysis in an attempt to increase the sample size. All of the statistical tests were repeated in post hoc with the larger samples of physicians who met the minimum criterion of an average of ten referrals per year for years 1 and 2 rather than just the referral count for year 1. Results Overall, there was no statistically significant change in the total referrals as a result of a change in physicians‘ ownership status. Tests for the influence of payer type, physician group, and ownership status on referrals also revealed no significant differences between the two physician groups. Point estimates of the differences between Group 1 and Group 3 for changes in mean referrals supported the hypothesized relationships between physicians‘ ownership status and total referrals, referrals of commercially insured patients, and referrals of underinsured patients; however, the 95% confidence intervals for the point estimates were consistent with the non-significant MLM results. The hypothesized relationship between POPTS and referrals of Medicare patients was not supported in any of the analyses. In post hoc testing of the combined influence of payer type, physician group, and ownership status on referrals, a three-way interaction between physician group, payer type, and status was found (p=0.034, α<0.05). Including a larger sample size in the post hoc analyses led to outcomes that were different than those seen in the initial statistical tests. Conclusion This research outlines a novel approach to analyzing the influence of physician ownership and payer type on referral behaviors. The findings suggest that physicians‘ ownership of physical therapy services was not a predictor of their referrals to hospital-based OPPT services. Specifically, there was no significant effect of physician ownership of OPPT services on the total volume of referrals made to two hospital-systems‘ OPPT clinics. There also was no significant relationship between physician ownership, payer type, and referrals made to the hospital-based clinics. The theory predicting that POPTS physicians would work to eliminate market competition by reducing referral volumes and retaining patients with more lucrative reimbursement for their own practices was not supported. However, post hoc analysis with a larger sample size provided some evidence that a larger sample may have revealed the hypothesized relationships between physician ownership, payer type, and referrals for OPPT. Future research utilizing larger samples and data tracking physicians‘ OPPT referrals from their origins to their final dispositions are needed to clarify the relationships between physicians‘ ownership of OPPT services and the referrals they make for those services.