Ana Wheelock
Imperial College London
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Ana Wheelock.
PLOS ONE | 2012
Andreas B. Eisingerich; Ana Wheelock; Gabriela B. Gomez; Geoffrey P. Garnett; Mark Dybul; Peter Piot
Background The use of antiviral medications by HIV negative people to prevent acquisition of HIV or pre-exposure prophylaxis (PrEP) has shown promising results in recent trials. To understand the potential impact of PrEP for HIV prevention, in addition to efficacy data, we need to understand both the acceptability of PrEP among members of potential user groups and the factors likely to determine uptake. Methods and findings Surveys of willingness to use PrEP products were conducted with 1,790 members of potential user groups (FSWs, MSM, IDUs, SDCs and young women) in seven countries: Peru, Ukraine, India, Kenya, Botswana, Uganda and South Africa. Analyses of variance were used to assess levels of acceptance across different user groups and countries. Conjoint analysis was used to examine the attitudes and preferences towards hypothetical and known attributes of PrEP programs and medications. Overall, members of potential user groups were willing to consider taking PrEP (61% reported that they would definitely use PrEP). Current results demonstrate that key user groups in different countries perceived PrEP as giving them new possibilities in their lives and would consider using it as soon as it becomes available. These results were maintained when subjects were reminded of potential side effects, the need to combine condom use with PrEP, and for regular HIV testing. Across populations, route of administration was considered the most important attribute of the presented alternatives. Conclusions Despite multiple conceivable barriers, there was a general willingness to adopt PrEP in key populations, which suggests that if efficacious and affordable, it could be a useful tool in HIV prevention. There would be a willingness to experience inconvenience and expense at the levels included in the survey. The results suggest that delivery in a long lasting injection would be a good target in drug development.
PLOS Medicine | 2013
Gabriela B. Gomez; Annick Borquez; Kelsey K. Case; Ana Wheelock; Anna Vassall; Catherine Hankins
Gabriela Gomez and colleagues systematically review cost-effectiveness modeling studies of pre-exposure prophylaxis (PrEP) for preventing HIV transmission and identify the main considerations to address when considering the introduction of PrEP to HIV prevention programs.
PLOS ONE | 2013
Ana Wheelock; Andreas B. Eisingerich; Jintanat Ananworanich; Gabriela B. Gomez; Timothy B. Hallett; Mark Dybul; Peter Piot
Objective We aimed to understand the attitudes, preferences and acceptance of oral and parenteral PrEP among men who have sex with men (MSM) in Thailand. Background Pre-exposure prophylaxis (PrEP), the use of antiretrovirals to prevent HIV acquisition, has shown promising results in recent trials. To assess the potential impact of this new HIV prevention method, in addition to efficacy data, we need to understand which psychosocial factors are likely to determine its uptake among members of potential user groups. Methods and Findings Surveys of willingness to use PrEP products were administered to MSM. Spearman’s rank tests were used to uncover associations between questionnaire items. Mann-Whitney tests were performed to ascertain differences between groups. Conjoint analysis was used to examine the attitudes and preferences of MSM towards PrEP attributes. Most participants were willing to consider taking PrEP (39.2% “yes, definitely” and 49.2% “yes, probably”) and perceived PrEP as giving them new possibilities in their lives (38.5% “a lot of hope” and 55.8% “some hope”), even after being instructed of potential side effects and costs. HIV testing was considered the most important attribute and a daily pill and longer lasting injection in the arm were the preferred routes of administration. Conclusions Despite its multiple challenges, MSM in Thailand would be willing to take PrEP, even if they had to experience inconvenience and expense. If PrEP were to be implemented in Thailand, our findings show that its uptake could be considerable.
Expert Review of Vaccines | 2013
Ana Wheelock; Angus Thomson; Nick Sevdalis
This article reviews the evidence base on the social and psychological factors that facilitate or hinder vaccination among adults. The authors categorized these factors into eight themes: social influence, disease-related factors, vaccine-related factors, habit, general attitudes toward health and vaccines, awareness and knowledge, practical barriers and motivators and altruism. Although there were many commonalities between both settings, the authors also indentifiedimportant differences. A better understanding of social and psychological aspects of vaccination across contexts and vaccines remains a priority.
Journal of The American College of Surgeons | 2013
Stephanie Russ; Sonal Arora; Rupert Wharton; Ana Wheelock; Louise Hull; Eshaa Sharma; Ara Darzi; Charles Vincent; Nick Sevdalis
BACKGROUND Although a number of validated tools are available for assessing nontechnical skills and teamwork in the operating room (OR), there are no tools for measuring completion of key OR tasks, which is fundamental to effective teamwork, patient safety, and OR efficiency. This study describes the development and content validation of a new tool (ie, the Metric for Evaluating Task Execution in the Operating Room) for measuring basic task completion during surgical procedures. STUDY DESIGN The content validity of 106 OR tasks was assessed using 50 real-time observations of general surgical procedures, followed by a process of expert consensus. A panel of 15 OR experts (ie, surgeons, anesthesiologists, and OR nurses) were asked to rate all tasks observed in <70% of procedures for relevance to patient safety and OR efficiency (using scientifically accepted definitions). Tasks rated highly were retained. Those perceived less relevant were removed. A second panel of patient-safety experts refined the tool to remove duplication, ensure usability, and include novel tasks. RESULTS Twenty-four of the original 106 tasks were observed in <70% of cases. Seven of these were rated highly by the OR experts for relevance to patient safety and efficiency and were retained in the Metric for Evaluating Task Execution in the Operating Room. Of the remaining 17, four were retained and 13 were removed by the patient-safety experts. In the final revision phase, an additional 23 tasks were removed and 10 new tasks added. The final tool consists of 80 OR tasks relating to well-established processes of care. CONCLUSIONS The Metric for Evaluating Task Execution in the Operating Room is easy to use and can identify specific gaps in safety and/or efficiency in OR processes. Next, we should examine its links with additional measures of OR performance, for example, patient outcomes, list cancellations/delays, and nontechnical skills.
BMJ Open | 2014
Ana Wheelock; Marisa Miraldo; Anam Parand; Charles Vincent; Nick Sevdalis
Introduction In the past two decades, childhood vaccination coverage has increased dramatically, averting an estimated 2–3 million deaths per year. Adult vaccination coverage, however, remains inconsistently recorded and substandard. Although structural barriers are known to limit coverage, social and psychological factors can also affect vaccine uptake. Previous qualitative studies have explored beliefs, attitudes and preferences associated with seasonal influenza (flu) vaccination uptake, yet little research has investigated how participants’ context and experiences influence their vaccination decision-making process over time. This paper aims to provide a detailed account of a mixed methods approach designed to understand the wider constellation of social and psychological factors likely to influence adult vaccination decisions, as well as the context in which these decisions take place, in the USA, the UK, France, India, China and Brazil. Methods and analysis We employ a combination of qualitative interviewing approaches to reach a comprehensive understanding of the factors influencing vaccination decisions, specifically seasonal flu and tetanus. To elicit these factors, we developed the journey to vaccination, a new qualitative approach anchored on the heuristics and biases tradition and the customer journey mapping approach. A purposive sampling strategy is used to select participants who represent a range of key sociodemographic characteristics. Thematic analysis will be used to analyse the data. Typical journeys to vaccination will be proposed. Ethics and dissemination Vaccination uptake is significantly influenced by social and psychological factors, some of which are under-reported and poorly understood. This research will provide a deeper understanding of the barriers and drivers to adult vaccination. Our findings will be published in relevant peer-reviewed journals and presented at academic conferences. They will also be presented as practical recommendations at policy and industry meetings and healthcare professionals’ forums. This research was approved by relevant local ethics committees.
Annals of Surgery | 2015
Ana Wheelock; Amna Suliman; Rupert Wharton; E. D. Babu; Louise Hull; Charles Vincent; Nick Sevdalis; Sonal Arora
PLOS ONE | 2014
Ana Wheelock; Anam Parand; Bruno Rigole; Angus Thomson; Marisa Miraldo; Charles Vincent; Nick Sevdalis
International Journal of Surgery | 2014
Ana Carolina Amaya Arias; Rocío Barajas; Javier Eslava-Schmalbach; Ana Wheelock; Hernando Gaitán Duarte; Louise Hull; Nick Sevdalis
International Journal of Surgery | 2012
Louise Hull; Sonal Arora; Ana Carolina Amaya; Ana Wheelock; Hernando Gaitán-Duarte; Charles Vincent; Nick Sevdalis