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Novel Testing Strategies to Support HIV Treatment and Prevention: Acceptability, Preferences, and Impact on Engagement in Care and Sexual Behaviors- [electronic resource]
Novel Testing Strategies to Support HIV Treatment and Prevention: Acceptability, Preferenc...
Novel Testing Strategies to Support HIV Treatment and Prevention: Acceptability, Preferences, and Impact on Engagement in Care and Sexual Behaviors- [electronic resource]

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자료유형  
 학위논문파일 국외
최종처리일시  
20240214101702
ISBN  
9798380333030
DDC  
614.4
저자명  
Bardon, Ashley R.
서명/저자  
Novel Testing Strategies to Support HIV Treatment and Prevention: Acceptability, Preferences, and Impact on Engagement in Care and Sexual Behaviors - [electronic resource]
발행사항  
[S.l.]: : University of Washington., 2023
발행사항  
Ann Arbor : : ProQuest Dissertations & Theses,, 2023
형태사항  
1 online resource(87 p.)
주기사항  
Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
주기사항  
Advisor: Drain, Paul K.
학위논문주기  
Thesis (Ph.D.)--University of Washington, 2023.
사용제한주기  
This item must not be sold to any third party vendors.
초록/해제  
요약The primary goal of this dissertation project was to advance our understanding of the impact of novel testing strategies to support HIV treatment and prevention. Despite significant advancements in antiretroviral therapy (ART) and pre-exposure prophylaxis (PrEP), rates of suboptimal medication adherence and disengagement from care, particularly in the first year of care, remain extraordinarily high. Novel strategies are urgently needed to improve ART and PrEP adherence and retention in care, in order to reduce HIV transmission and mortality.Point-of-care (POC) urine tenofovir testing is a newly developed tool that can provide real-time drug-level feedback for people living with HIV (PLWH) receiving ART, which could also prompt timely interventions for those experiencing adherence challenges. However, little is known about how PLWH and healthcare providers will perceive a POC urine tenofovir testing intervention and how it will impact behaviors. In Chapter 1, we conducted a qualitative study to assess the acceptability of monthly POC urine tenofovir testing in the first five months of care for PLWH and healthcare providers in South Africa. We also explored participants' perspectives on differentiated strategies for the implementation of POC urine tenofovir testing that may be useful and appropriate for PLWH. Overall, PLWH and healthcare providers found the monthly POC urine tenofovir testing intervention to be highly acceptable, generally preferred over self-reported adherence, and motivational for improving ART adherence. Other implementation strategies in which participants believed POC urine tenofovir testing could be provided, included: testing at community-based sites where ART is refilled, random testing at clinic visits, and testing delivered by counselors or other healthcare workers. Monthly POC urine tenofovir testing in the first five months of HIV care is an acceptable and potentially effective strategy for improving ART adherence.Novel strategies for HIV testing for people at risk of acquiring HIV may also be beneficial for improving outcomes, but it is important to understand how clients' testing preferences impact the intended outcomes. For HIV prevention, regular HIV testing is a required core component of PrEP delivery necessary to ensure a prompt transition to ART and reduce the risk of drug resistance. HIV self-testing (HIVST) may be an effective tool for supporting efficient PrEP delivery, allowing for non-clinic-based HIV testing when appropriate. A differentiated service delivery (DSD) model for PrEP that includes semiannual clinic visits, six-month PrEP dispensing, and HIVST between clinic visits resulted in non-inferior outcomes for PrEP continuation. In practice, though, PrEP clients' unique needs and preferences should be considered when choosing an appropriate and effective delivery model. In Chapter 2, we used data from the JiPime-JiPrEP trial (NCT03593629) to determine if receiving a preferred HIV testing modality to support PrEP delivery is associated with better PrEP continuation outcomes compared to receiving a non-preferred modality. Findings from Chapter 2 indicated no significant differences in PrEP continuation behaviors between participants receiving their preferred HIV testing modality and those receiving their non-preferred modality.This DSD model of semiannual clinic visits with six-month PrEP dispensing and HIVST reduced the frequency of clinic visits without compromising PrEP continuation outcomes, but its effect on other behaviors associated with HIV risk acquisition, such as sexual behaviors, is not well known. In Chapter 3, we evaluated the effect of this DSD model of PrEP delivery supported with interim HIVST-which reduces the frequency of sexual and reproductive health and associated counseling services-on participants' sexual behaviors. We found no significant differences in sexual behaviors between participants receiving a DSD model of PrEP that included semiannual clinic visits and HIVST and participants receiving standard-of-care. DSD models of PrEP delivery and HIV testing, including those that incorporate HIVST, that are person-centered and tailored to clients' unique needs and preferences may result in comparable outcomes to standard-of-care PrEP delivery models.Collectively, these findings provide some of the first insights on the acceptability of monthly POC urine tenofovir testing for PLWH in South Africa, PrEP continuation behaviors for clients receiving a DSD model supported with their preferred HIV testing modality, and sexual behaviors for PrEP clients receiving a DSD PrEP delivery model supported with HIVST versus standard-of-care PrEP delivery. Evidence gleaned from this dissertation will be valuable for guiding development of person-centered models of care and testing strategies to support HIV treatment and prevention.
일반주제명  
Epidemiology.
일반주제명  
Health sciences.
일반주제명  
Health care management.
일반주제명  
Clinical psychology.
키워드  
Adherence
키워드  
Antiretroviral therapy
키워드  
HIV
키워드  
Pre-exposure prophylaxis
키워드  
Urine tenofovir testing
키워드  
Point-of-care
기타저자  
University of Washington Epidemiology
기본자료저록  
Dissertations Abstracts International. 85-03B.
기본자료저록  
Dissertation Abstract International
전자적 위치 및 접속  
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■035    ▼a(MiAaPQ)AAI30635870
■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a614.4
■1001  ▼aBardon,  Ashley  R.
■24510▼aNovel  Testing  Strategies  to  Support  HIV  Treatment  and  Prevention:  Acceptability,  Preferences,  and  Impact  on  Engagement  in  Care  and  Sexual  Behaviors▼h[electronic  resource]
■260    ▼a[S.l.]:▼bUniversity  of  Washington.  ▼c2023
■260  1▼aAnn  Arbor  :▼bProQuest  Dissertations  &  Theses,  ▼c2023
■300    ▼a1  online  resource(87  p.)
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  85-03,  Section:  B.
■500    ▼aAdvisor:  Drain,  Paul  K.
■5021  ▼aThesis  (Ph.D.)--University  of  Washington,  2023.
■506    ▼aThis  item  must  not  be  sold  to  any  third  party  vendors.
■520    ▼aThe  primary  goal  of  this  dissertation  project  was  to  advance  our  understanding  of  the  impact  of  novel  testing  strategies  to  support  HIV  treatment  and  prevention.  Despite  significant  advancements  in  antiretroviral  therapy  (ART)  and  pre-exposure  prophylaxis  (PrEP),  rates  of  suboptimal  medication  adherence  and  disengagement  from  care,  particularly  in  the  first  year  of  care,  remain  extraordinarily  high.  Novel  strategies  are  urgently  needed  to  improve  ART  and  PrEP  adherence  and  retention  in  care,  in  order  to  reduce  HIV  transmission  and  mortality.Point-of-care  (POC)  urine  tenofovir  testing  is  a  newly  developed  tool  that  can  provide  real-time  drug-level  feedback  for  people  living  with  HIV  (PLWH)  receiving  ART,  which  could  also  prompt  timely  interventions  for  those  experiencing  adherence  challenges.  However,  little  is  known  about  how  PLWH  and  healthcare  providers  will  perceive  a  POC  urine  tenofovir  testing  intervention  and  how  it  will  impact  behaviors.  In  Chapter  1,  we  conducted  a  qualitative  study  to  assess  the  acceptability  of  monthly  POC  urine  tenofovir  testing  in  the  first  five  months  of  care  for  PLWH  and  healthcare  providers  in  South  Africa.  We  also  explored  participants'  perspectives  on  differentiated  strategies  for  the  implementation  of  POC  urine  tenofovir  testing  that  may  be  useful  and  appropriate  for  PLWH.  Overall,  PLWH  and  healthcare  providers  found  the  monthly  POC  urine  tenofovir  testing  intervention  to  be  highly  acceptable,  generally  preferred  over  self-reported  adherence,  and  motivational  for  improving  ART  adherence.  Other  implementation  strategies  in  which  participants  believed  POC  urine  tenofovir  testing  could  be  provided,  included:  testing  at  community-based  sites  where  ART  is  refilled,  random  testing  at  clinic  visits,  and  testing  delivered  by  counselors  or  other  healthcare  workers.  Monthly  POC  urine  tenofovir  testing  in  the  first  five  months  of  HIV  care  is  an  acceptable  and  potentially  effective  strategy  for  improving  ART  adherence.Novel  strategies  for  HIV  testing  for  people  at  risk  of  acquiring  HIV  may  also  be  beneficial  for  improving  outcomes,  but  it  is  important  to  understand  how  clients'  testing  preferences  impact  the  intended  outcomes.  For  HIV  prevention,  regular  HIV  testing  is  a  required  core  component  of  PrEP  delivery  necessary  to  ensure  a  prompt  transition  to  ART  and  reduce  the  risk  of  drug  resistance.  HIV  self-testing  (HIVST)  may  be  an  effective  tool  for  supporting  efficient  PrEP  delivery,  allowing  for  non-clinic-based  HIV  testing  when  appropriate.  A  differentiated  service  delivery  (DSD)  model  for  PrEP  that  includes  semiannual  clinic  visits,  six-month  PrEP  dispensing,  and  HIVST  between  clinic  visits  resulted  in  non-inferior  outcomes  for  PrEP  continuation.  In  practice,  though,  PrEP  clients'  unique  needs  and  preferences  should  be  considered  when  choosing  an  appropriate  and  effective  delivery  model.  In  Chapter  2,  we  used  data  from  the  JiPime-JiPrEP  trial  (NCT03593629)  to  determine  if  receiving  a  preferred  HIV  testing  modality  to  support  PrEP  delivery  is  associated  with  better  PrEP  continuation  outcomes  compared  to  receiving  a  non-preferred  modality.  Findings  from  Chapter  2  indicated  no  significant  differences  in  PrEP  continuation  behaviors  between  participants  receiving  their  preferred  HIV  testing  modality  and  those  receiving  their  non-preferred  modality.This  DSD  model  of  semiannual  clinic  visits  with  six-month  PrEP  dispensing  and  HIVST  reduced  the  frequency  of  clinic  visits  without  compromising  PrEP  continuation  outcomes,  but  its  effect  on  other  behaviors  associated  with  HIV  risk  acquisition,  such  as  sexual  behaviors,  is  not  well  known.  In  Chapter  3,  we  evaluated  the  effect  of  this  DSD  model  of  PrEP  delivery  supported  with  interim  HIVST-which  reduces  the  frequency  of  sexual  and  reproductive  health  and  associated  counseling  services-on  participants'  sexual  behaviors.  We  found  no  significant  differences  in  sexual  behaviors  between  participants  receiving  a  DSD  model  of  PrEP  that  included  semiannual  clinic  visits  and  HIVST  and  participants  receiving  standard-of-care.  DSD  models  of  PrEP  delivery  and  HIV  testing,  including  those  that  incorporate  HIVST,  that  are  person-centered  and  tailored  to  clients'  unique  needs  and  preferences  may  result  in  comparable  outcomes  to  standard-of-care  PrEP  delivery  models.Collectively,  these  findings  provide  some  of  the  first  insights  on  the  acceptability  of  monthly  POC  urine  tenofovir  testing  for  PLWH  in  South  Africa,  PrEP  continuation  behaviors  for  clients  receiving  a  DSD  model  supported  with  their  preferred  HIV  testing  modality,  and  sexual  behaviors  for  PrEP  clients  receiving  a  DSD  PrEP  delivery  model  supported  with  HIVST  versus  standard-of-care  PrEP  delivery.  Evidence  gleaned  from  this  dissertation  will  be  valuable  for  guiding  development  of  person-centered  models  of  care  and  testing  strategies  to  support  HIV  treatment  and  prevention.
■590    ▼aSchool  code:  0250.
■650  4▼aEpidemiology.
■650  4▼aHealth  sciences.
■650  4▼aHealth  care  management.
■650  4▼aClinical  psychology.
■653    ▼aAdherence
■653    ▼aAntiretroviral  therapy
■653    ▼aHIV
■653    ▼aPre-exposure  prophylaxis
■653    ▼aUrine  tenofovir  testing
■653    ▼aPoint-of-care
■690    ▼a0766
■690    ▼a0566
■690    ▼a0622
■690    ▼a0769
■71020▼aUniversity  of  Washington▼bEpidemiology.
■7730  ▼tDissertations  Abstracts  International▼g85-03B.
■773    ▼tDissertation  Abstract  International
■790    ▼a0250
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T16934852▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.
■980    ▼a202402▼f2024

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