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Essays on Physician Consults
Essays on Physician Consults
Essays on Physician Consults

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자료유형  
 학위논문 서양
최종처리일시  
20260202103007
ISBN  
9798280756298
DDC  
610
저자명  
Templeton, Zachary S.
서명/저자  
Essays on Physician Consults
발행사항  
[Sl] : University of Pennsylvania, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
114 p
주기사항  
Source: Dissertations Abstracts International, Volume: 86-12, Section: B.
주기사항  
Advisor: David, Guy.
학위논문주기  
Thesis (Ph.D.)--University of Pennsylvania, 2025.
초록/해제  
요약Physician consultations-requests for skills and expertise from physicians of other specialties-are a critical yet underexamined component of inpatient care delivery. Despite the high prevalence of consults, their effects on health and utilization outcomes are uncertain. In this dissertation I provide descriptive evidence on the use of physician consults nationally and employ quasi-experimental methods to estimate the causal effects of consults.Chapter 1 explores trends in attending physician specialty and the use of consults among Medicare fee-for-service beneficiaries admitted to hospitals between 2010 to 2020. Leveraging claims data on over 11 million admissions, I find that generalist physicians, predominantly hospitalists, are the most common attending physician specialty. The share of admissions treated by generalist physicians increased from 54% in 2010 to 60% in 2020. Despite this shift, the use of consults remained relatively stable, with two-thirds of admissions involving at least one consult.In Chapter 2 I provide causal estimates of the effects of infectious disease and cardiology consults occurring in the first 24 hours of admission to general medicine. This analysis relies on detailed electronic health record data from a large health system spanning 2017 to 2024. To address the endogeneity of consults, I employ an instrumental variable approach: increases in consultant workload lead to decreases in the probability of a consult. Using 2SLS, I find that an infectious disease consult leads to a 70% reduction in the probability of being readmitted within 30 days of discharge, albeit with the tradeoff of a longer hospital stay and higher charges. Likely mechanisms include increases in the use of intravenous antibiotics and improved care continuity in the outpatient setting post-discharge. In contrast, cardiology consults appear to reduce hospital length of stay and costs over a 30-day episode. I find suggestive evidence that cardiology consults are used to "rule out" serious cardiovascular conditions among high-risk patients, facilitating earlier discharges. In summary, I show that consults are valuable in my setting and can substantially affect the care that patients receive, both in and out of the hospital.
일반주제명  
Medicine
일반주제명  
Statistics
키워드  
Physician consultations
키워드  
Inpatient care delivery
키워드  
Electronic health
키워드  
Probability
기타저자  
University of Pennsylvania Health Care Management & Economics
기본자료저록  
Dissertations Abstracts International. 86-12B.
전자적 위치 및 접속  
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MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
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■1001  ▼aTempleton,  Zachary  S.
■24510▼aEssays  on  Physician  Consults
■260    ▼a[Sl]▼bUniversity  of  Pennsylvania▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a114  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  86-12,  Section:  B.
■500    ▼aAdvisor:  David,  Guy.
■5021  ▼aThesis  (Ph.D.)--University  of  Pennsylvania,  2025.
■520    ▼aPhysician  consultations-requests  for  skills  and  expertise  from  physicians  of  other  specialties-are  a  critical  yet  underexamined  component  of  inpatient  care  delivery.  Despite  the  high  prevalence  of  consults,  their  effects  on  health  and  utilization  outcomes  are  uncertain.  In  this  dissertation  I  provide  descriptive  evidence  on  the  use  of  physician  consults  nationally  and  employ  quasi-experimental  methods  to  estimate  the  causal  effects  of  consults.Chapter  1  explores  trends  in  attending  physician  specialty  and  the  use  of  consults  among  Medicare  fee-for-service  beneficiaries  admitted  to  hospitals  between  2010  to  2020.  Leveraging  claims  data  on  over  11  million  admissions,  I  find  that  generalist  physicians,  predominantly  hospitalists,  are  the  most  common  attending  physician  specialty.  The  share  of  admissions  treated  by  generalist  physicians  increased  from  54%  in  2010  to  60%  in  2020.  Despite  this  shift,  the  use  of  consults  remained  relatively  stable,  with  two-thirds  of  admissions  involving  at  least  one  consult.In  Chapter  2  I  provide  causal  estimates  of  the  effects  of  infectious  disease  and  cardiology  consults  occurring  in  the  first  24  hours  of  admission  to  general  medicine.  This  analysis  relies  on  detailed  electronic  health  record  data  from  a  large  health  system  spanning  2017  to  2024.  To  address  the  endogeneity  of  consults,  I  employ  an  instrumental  variable  approach:  increases  in  consultant  workload  lead  to  decreases  in  the  probability  of  a  consult.  Using  2SLS,  I  find  that  an  infectious  disease  consult  leads  to  a  70%  reduction  in  the  probability  of  being  readmitted  within  30  days  of  discharge,  albeit  with  the  tradeoff  of  a  longer  hospital  stay  and  higher  charges.  Likely  mechanisms  include  increases  in  the  use  of  intravenous  antibiotics  and  improved  care  continuity  in  the  outpatient  setting  post-discharge.  In  contrast,  cardiology  consults  appear  to  reduce  hospital  length  of  stay  and  costs  over  a  30-day  episode.  I  find  suggestive  evidence  that  cardiology  consults  are  used  to  "rule  out"  serious  cardiovascular  conditions  among  high-risk  patients,  facilitating  earlier  discharges.  In  summary,  I  show  that  consults  are  valuable  in  my  setting  and  can  substantially  affect  the  care  that  patients  receive,  both  in  and  out  of  the  hospital.
■590    ▼aSchool  code:  0175.
■650  4▼aMedicine
■650  4▼aStatistics
■653    ▼aPhysician  consultations
■653    ▼aInpatient  care  delivery
■653    ▼aElectronic  health
■653    ▼aProbability
■690    ▼a0501
■690    ▼a0769
■690    ▼a0564
■690    ▼a0511
■690    ▼a0463
■71020▼aUniversity  of  Pennsylvania▼bHealth  Care  Management  &  Economics.
■7730  ▼tDissertations  Abstracts  International▼g86-12B.
■790    ▼a0175
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17356633▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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