DPhil in Population Health
About the course
The DPhil in Population Health is a doctoral research course intended to provide you with training in research, an in-depth knowledge and understanding of your doctoral research topic and prepare you for a career in academia.
Research training will primarily be through day-to-day involvement in a research project and working with a research team. Past research projects that students have worked on include ‘Can routinely collected data be used to accurately and completely follow-up participants in large randomised trials?’ and ‘Biological Ageing: Statistical analysis of physical and biochemical biomarkers in UK Biobank’. A typical day of a DPhil student varies through the course but will include literature reviews, data analysis, discussion with the research group and writing-up the research thesis.
Your supervisors will be the main source of your research training; you will also be encouraged to strengthen your research skills by taking relevant training courses. Research training will be within a multidisciplinary research environment which includes epidemiology, statistics, ethics, health economics, health promotion, health services research, and big data.
You will be encouraged to make use of the range of skills training offered by the Medical Sciences Division and the department throughout your study at the Nuffield Department of Population Health (NDPH). All students will be asked to complete a Training Needs Analysis in the first term of their studies, which will be used to help students to assess their skill level and identify training required. There is no set period of time that should be used for training – students will be able to pursue the training they need. This training includes statistics, epidemiology, data management, research ethics, writing academic papers and presentation skills. You are also expected to identify additional relevant external courses that will support your research training.
Attendance
The course can be studied full-time or part-time with both modes requiring attendance in Oxford. Full-time students are subject to the University's Residence requirements. Part-time students are required to attend course-related activities in Oxford for a minimum of 30 days each year.
The full-time course is studied over three to four years. The part-time course has the same requirements, but is studied over six to eight years.
A small number of part-time students may be admitted to the DPhil in Population Health. Candidates applying for admission to this part-time course are required to show that their DPhil research topic is suited to part-time study and their supervisors agree with the part-time schedule. Attendance for part-time students will be spread across the academic year with a minimum of ten days based in the department each term. However, attendance is likely to be higher than this and will be determined by the demands of the individual DPhil research project.
As a part-time student you will be required to attend supervision meetings and other obligations in Oxford. There will be limited flexibility in the dates of attendance, which will be determined by mutual agreement with your supervisor. You will have the opportunity to tailor your part-time study in liaison with your supervisor and agree your pattern of attendance.
Provision exists for students on some courses to undertake their research in a ‘well-founded laboratory’ outside of the University. This may require travel to and attendance at a site that is not located in Oxford. Where known, existing collaborations will be outlined on this page. Please read the course information carefully, including the additional information about course fees and costs.
Resources to support your study
As a graduate student, you will have access to the University's wide range of world-class resources including libraries, museums, galleries, digital resources and IT services.
The Bodleian Libraries is the largest library system in the UK. It includes the main Bodleian Library and libraries across Oxford, including major research libraries and faculty, department and institute libraries. Together, the Libraries hold more than 13 million printed items, provide access to e-journals, and contain outstanding special collections including rare books and manuscripts, classical papyri, maps, music, art and printed ephemera.
The University's IT Services is available to all students to support with core university IT systems and tools, as well as many other services and facilities. IT Services also offers a range of IT learning courses for students, to support with learning and research.
Libraries
You will have access to the department's IT support, and to the University Library services such as the Radcliffe Science Library, Cairns Library at the John Radcliffe Hospital and the Knowledge Centre based in the Old Road Campus Research Building.
A tour of the Knowledge Centre will be available in your first term. You will be allocated a desk and laptop within NDPH.
Research Student Committee
NDPH hosts an active Research Student Committee. This student-led group meets regularly during term time and arranges social events, seminars, journal clubs and academic talks.
Supervision
The allocation of graduate supervision for this course is the responsibility of the Nuffield Department of Population Health and it is not always possible to accommodate the preferences of incoming graduate students to work with a particular member of staff. In some circumstances a supervisor may be found outside the Nuffield Department of Population Health. Each student will be supervised by at least two supervisors. Co-supervisors may be from within or outside the department.
Moat students have the opportunity to meet with their supervisor individually throughout the year, typically once every two weeks during term time, but this is subject to individual arrangements.
Assessment
DPhil students must pass two milestone assessments during their research career:
- Transfer of status - this must take place by the end of the fourth term (or eighth term for part-time students). Students submit a written transfer report and are interviewed by two assessors.
- Confirmation of status - this must take place by the end of the ninth term (or eighteenth term for part-time students). Students submit a detailed thesis contents list and timetable for completion and are interviewed by two assessors.
Students are expected to submit their thesis within three to four years of admission to the DPhil. A viva (oral examination) in front of one internal and one external examiner is then conducted, normally within three months of submission.
Graduate destinations
Most DPhil alumni progress to academic posts both in the UK and Overseas, while others join health-related professions working for notable organisations such as the WHO and Public Health England.
Changes to this course and your supervision
The University will seek to deliver this course in accordance with the description set out in this course page. However, there may be situations in which it is desirable or necessary for the University to make changes in course provision, either before or after registration. The safety of students, staff and visitors is paramount and major changes to delivery or services may have to be made if a pandemic, epidemic or local health emergency occurs. In addition, in certain circumstances, for example due to visa difficulties or because the health needs of students cannot be met, it may be necessary to make adjustments to course requirements for international study.
Where possible your academic supervisor will not change for the duration of your course. However, it may be necessary to assign a new academic supervisor during the course of study or before registration for reasons which might include illness, sabbatical leave, parental leave or change in employment.
For further information please see our page on changes to courses and the provisions of the student contract regarding changes to courses.
Entry requirements for entry in 2025-26
Proven and potential academic excellence
The requirements described below are specific to this course and apply only in the year of entry that is shown. You can use our interactive tool to help you evaluate whether your application is likely to be competitive.
We know that factors such as socio-economic circumstances and school performance can make it difficult for students to demonstrate their full potential. This course is taking part in an initiative to use contextual data to help us to better understand your achievements in the context of your individual background. For further details, please refer to the information about improving access to graduate study in the How to apply section of this page.
Please be aware that any studentships that are linked to this course may have different or additional requirements and you should read any studentship information carefully before applying. Contextual data may also be used in the assessment of studentships.
Degree-level qualifications
As a minimum, applicants should hold or be predicted to achieve the following UK qualifications or their equivalent:
- a first-class or upper second-class undergraduate degree with honours in a subject relevant to population health.
Applicants who hold a master's degree in a relevant subject will be at an advantage as this will prepare them for DPhil research.
For applicants with a bachelor's degree from the USA, the minimum overall GPA that is normally required to meet the undergraduate-level requirement is 3.5 out of 4.0.
If your degree is not from the UK or another country specified above, visit our International Qualifications page for guidance on the qualifications and grades that would usually be considered to meet the University’s minimum entry requirements.
GRE General Test scores
No Graduate Record Examination (GRE) or GMAT scores are sought.
Other qualifications, evidence of excellence and relevant experience
- Research or working experience in the area of the proposed research may be an advantage.
- Publications in a peer-reviewed journal would strengthen an application.
English language proficiency
This course requires proficiency in English at the University's standard level. If your first language is not English, you may need to provide evidence that you meet this requirement. The minimum scores required to meet the University's standard level are detailed in the table below.
| Test | Minimum overall score | Minimum score per component |
|---|---|---|
| IELTS Academic (Institution code: 0713) | 7.0 | 6.5 |
TOEFL iBT, including the 'Home Edition' (Institution code: 0490) | 100 | Listening: 22 Reading: 24 Speaking: 25 Writing: 24 |
| C1 Advanced* | 185 | 176 |
| C2 Proficiency† | 185 | 176 |
*Previously known as the Cambridge Certificate of Advanced English or Cambridge English: Advanced (CAE)
†Previously known as the Cambridge Certificate of Proficiency in English or Cambridge English: Proficiency (CPE)
Your test must have been taken no more than two years before the start date of your course. Our Application Guide provides further information about the English language test requirement.
Declaring extenuating circumstances
If your ability to meet the entry requirements has been affected by the COVID-19 pandemic (eg you were awarded an unclassified/ungraded degree) or any other exceptional personal circumstance (eg other illness or bereavement), please refer to the guidance on extenuating circumstances in the Application Guide for information about how to declare this so that your application can be considered appropriately.
References
You will need to register three referees who can give an informed view of your academic ability and suitability for the course. The How to apply section of this page provides details of the types of reference that are required in support of your application for this course and how these will be assessed.
Supporting documents
You will be required to supply supporting documents with your application. The How to apply section of this page provides details of the supporting documents that are required as part of your application for this course and how these will be assessed.
Performance at interview
Interviews are normally held as part of the admissions process.
Applicants will be shortlisted for interview by a panel of academics according to their academic achievements to date, understanding of research area, references, prizes, scholarships and awards and aptitude for the course.
Interviews are planned for late January 2025 and will be conducted via video link.
Interviews normally last no more than 30 minutes and begin with a presentation by the applicant of their research proposal, lasting no more than 5 minutes. The panel normally comprises a Director of Graduate Studies, the Deputy Director of Graduate Studies, at least one of the applicant's proposed supervisors, and at least one further senior researcher from the department.
Offer conditions for successful applications
If you receive an offer of a place at Oxford, your offer will outline any conditions that you need to satisfy and any actions you need to take, together with any associated deadlines. These may include academic conditions, such as achieving a specific final grade in your current degree course. These conditions will usually depend on your individual academic circumstances and may vary between applicants. Our 'After you apply' pages provide more information about offers and conditions.
In addition to any academic conditions which are set, you will also be required to meet the following requirements:
Financial Declaration
If you are offered a place, you will be required to complete a Financial Declaration in order to meet your financial condition of admission.
Disclosure of criminal convictions
In accordance with the University’s obligations towards students and staff, we will ask you to declare any relevant, unspent criminal convictions before you can take up a place at Oxford.
Evidence of ability to study for employed part-time applicants
If you are applying for part-time study and are currently employed, you may be asked to provide evidence that your employment will not affect your ability to study and that you can commit sufficient time to fulfil all elements outlined in the course description. You may be asked to provide details about your pattern of employment and obtain a statement from your employer confirming their commitment to make time available for you to study, to complete coursework, and attend course and University events and modules.
Permission to use data obtained through your employment
If you are embarking on study with the support of your employer and intend to use data obtained through your employment, evidence should be provided of permission to use your employers’ data in your proposed research project.
Other factors governing whether places can be offered
The following factors will also govern whether candidates can be offered places:
- the ability of the University to provide the appropriate supervision for your studies, as outlined under the 'Supervision' heading in the About section of this page;
- the ability of the University to provide appropriate support for your studies (eg through the provision of facilities, resources, teaching and/or research opportunities); and
- minimum and maximum limits to the numbers of students who may be admitted to the University's taught and research programmes.
Nuffield Department of Population Health
The Nuffield Department of Population Health (NDPH) brings together over 600 staff and 200 students from a number of world-leading research groups with the aim of reducing premature death and disability from human disease.
A number of world-renowned research groups and disciplines are part of the NDPH, including the Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), Cancer Epidemiology Unit (CEU), National Perinatal Epidemiology Unit (NPEU), Health Economics Research Centre (HERC), Demographic Science Unit (DSU) and Ethox Centre. These groups are responsible for some of the world’s largest population cohorts and randomised trials, and produce highly-cited practice-changing research, which continues to have a major impact on international clinical management guidelines (eg on statins, aspirin, hypertension, pre-eclampsia, heart failure, serious childhood illness and infections).
Funding
For entry in the 2025-26 academic year, the collegiate University expects to offer over 1,000 full or partial graduate scholarships across a wide range of graduate courses.
If you apply by the December deadline shown on this page and receive a course offer, your application will then be considered for Oxford scholarships. For the majority of Oxford scholarships, your application will automatically be assessed against the eligibility criteria, without needing to make a separate application. There are further Oxford scholarships available which have additional eligibility criteria and where you are required to submit a separate application. Most scholarships are awarded on the basis of academic merit and/or potential.
To ensure that you are considered for Oxford scholarships that require a separate application, for which you may be eligible, use our fees, funding and scholarship search tool to identify these opportunities and find out how to apply. Alongside Oxford scholarships, you should also consider other opportunities for which you may be eligible including a range of external funding, loan schemes for postgraduate study and any other scholarships which may also still be available after the December deadline as listed on our fees, funding and scholarship search tool.
Details of college-specific funding opportunities can also be found on individual college websites:
Please refer to the College preference section of this page to identify which of the colleges listed above accept students for this course.
For the majority of college scholarships, it doesn’t matter which college, if any, you state a preference for in your application. If another college is able to offer you a scholarship, your application can be moved to that college if you accept the scholarship. Some college scholarships may require you to state a preference for that college when you apply, so check the eligibility requirements carefully.
Further information about funding opportunities for this course can be found on the department's website.
Costs
Annual fees for entry in 2025-26
Full-time study
Fee status | Annual Course fees |
| Home | £10,070 |
| Overseas | £33,370 |
Part-time study
Fee status | Annual Course fees |
| Home | £5,035 |
| Overseas | £16,685 |
Information about course fees
Course fees are payable each year, for the duration of your fee liability (your fee liability is the length of time for which you are required to pay course fees). For courses lasting longer than one year, please be aware that fees will usually increase annually. For details, please see our guidance on changes to fees and charges.
Course fees cover your teaching as well as other academic services and facilities provided to support your studies. Unless specified in the additional information section below, course fees do not cover your accommodation, residential costs or other living costs. They also don’t cover any additional costs and charges that are outlined in the additional information below.
Continuation charges
Following the period of fee liability, you may also be required to pay a University continuation charge and a college continuation charge. The University and college continuation charges are shown on the Continuation charges page.
Where can I find further information about fees?
The Fees and Funding section of this website provides further information about course fees, including information about fee status and eligibility and your length of fee liability.
Additional information
Full-time study
There are no compulsory elements of this course that entail additional costs beyond fees (or, after fee liability ends, continuation charges) and living costs. However, please note that, depending on your choice of research topic and the research required to complete it, you may incur additional expenses, such as travel expenses, research expenses, and field trips. You will need to meet these additional costs, although you may be able to apply for small grants from your department and/or college to help you cover some of these expenses.
Part-time study
Please note that you are required to attend in Oxford for a minimum of 30 days each year, and you may incur additional travel and accommodation expenses for this. Also, depending on your choice of research topic and the research required to complete it, you may incur further additional expenses, such as travel expenses, research expenses, and field trips. You will need to meet these additional costs, although you may be able to apply for small grants from your department and/or college to help you cover some of these expenses
Living costs
In addition to your course fees and any additional course-specific costs, you will need to ensure that you have adequate funds to support your living costs for the duration of your course.
Living costs for full-time study
For the 2025-26 academic year, the range of likely living costs for a single, full-time student is between £1,425 and £2,035 for each month spent in Oxford. We provide the cost per month so you can multiply up by the number of months you expect to live in Oxford. Depending on your circumstances, you may also need to budget for the costs of a student visa and immigration health surcharge and/or living costs for family members or other dependants that you plan to bring with you to Oxford (assuming that dependant visa eligibility criteria are met).
Living costs for part-time study
Your living costs may vary depending on your personal circumstances but you will still need to cover your cost of living on a full-time basis for the duration of your course, even if you will not be based in Oxford throughout your studies. While the range of likely living costs for a single, full-time student living in Oxford is between £1,425 and £2,035 per month, living costs outside Oxford may be different.
Part-time students who are not based in Oxford will need to calculate travel and accommodation costs carefully. Depending on your circumstances and study plans, this may include the cost of a visitor visa to attend for short blocks of time (assuming that visitor visa eligibility criteria are met).
Further information about living costs
The current economic climate and high national rate of inflation make it very hard to estimate potential changes to the cost of living over the next few years. For study in Oxford beyond the 2025-26 academic year, it is suggested that you budget for potential increases in living expenses of around 4% each year – although this rate may vary depending on the national economic situation. For further information, please consult our more detailed information about living costs, which includes a breakdown of likely living costs in Oxford for items such as food, accommodation and study costs.
College preference
Students enrolled on this course will belong to both a department/faculty and a college. Please note that ‘college’ and ‘colleges’ refers to all 43 of the University’s colleges, including those designated as societies and permanent private halls (PPHs).
If you apply for a place on this course you will have the option to express a preference for one of the colleges listed below, or you can ask us to find a college for you. Before deciding, we suggest that you read our brief introduction to the college system at Oxford and our advice about expressing a college preference.
If you are a current Oxford student and you would like to remain at your current Oxford college, you should check whether it is listed below. If it is, you should indicate this preference when you apply. If not, you should contact your college office to ask whether they would be willing to make an exception. Further information about staying at your current college can be found in our Application Guide.
Full-time study
The following colleges accept students for full-time study on this course:
Part-time study
The following colleges accept students for part-time study on this course:
Before you apply
Before you begin an application, we recommend that you consult the Medical Sciences Graduate School's website to identify the most suitable course for your intended area of research.
Our guide to getting started provides general advice on how to prepare for and start your application. You can use our interactive tool to help you evaluate whether your application is likely to be competitive.
If it is important for you to have your application considered under a particular deadline – eg under the December deadline in order to be considered for Oxford scholarships – we recommend that you aim to complete and submit your application at least two weeks in advance. Check the deadlines on this page and the information about deadlines and when to apply in our Application Guide.
Application fee waivers
An application fee of £20 is payable for each application to this course. Application fee waivers are available for the following applicants who meet the eligibility criteria:
- applicants from low-income countries;
- refugees and displaced persons;
- UK applicants from low-income backgrounds; and
- applicants who applied for our Graduate Access Programmes in the past two years and met the eligibility criteria.
You are encouraged to check whether you're eligible for an application fee waiver before you apply.
Readmission for current Oxford graduate taught students
If you're currently studying for an Oxford graduate taught course and apply to this course with no break in your studies, you may be eligible to apply to this course as a readmission applicant. The application fee will be waived for an eligible application of this type. Check whether you're eligible to apply for readmission.
Application fee waivers for eligible associated courses
If you apply to this course and are considering applying (or have already applied) to any of the associated courses listed below, you can request an application fee waiver so that you only need to pay one application fee. We recommend that you use your application fee waiver to apply only for eligible courses that are closely related in research area to this one.
For full details about how to request an application fee waiver, please select the course you are interested in from the list below and refer to the equivalent section of its course page.
The following associated courses are taking part in this application fee waiver scheme:
- Autonomous Intelligent Machines and Systems, EPSRC CDT
- Biomedical and Clinical Sciences (Oxford-GSK), DPhil
- Cancer Science (Biological background), CDT
- Cancer Science (Clinician), DPhil
- Cancer Science (Intercalation), DPhil
- Cancer Science (Maths/Physics background), CDT
- Chemical Synthesis for a Healthy Planet, CDT
- Engineering Biology, BBSRC and EPSRC CDT
- Fundamentals of AI, EIT CDT
- Fusion Power, EPSRC CDT
- Genomic Medicine and Statistics, DPhil
- Healthcare Data Science, EPSRC CDT
- Inflammatory and Musculoskeletal Disease, DPhil
- Inorganic Materials for Advanced Manufacturing, EPSRC CDT
- Intelligent Earth, UKRI CDT in AI for the Environment
- Interdisciplinary Life and Environmental Science, DPhil
- Materials 4.0, EPSRC CDT
- Mathematics of Random Systems: Analysis, Modelling and Algorithms, CDT
- Neuroscience (1+3), DPhil
- Quantum Informatics, EPSRC CDT (expected to open in early-2025)
- Robotics and AI for Net Zero, EPSRC CDT (expected to open in early-2025)
- Statistics and Machine Learning, EPSRC CDT
- Superconductivity: Enabling Transformative Technologies, EPSRC CDT
Do I need to contact anyone before I apply?
If you wish to apply for an advertised project, you must make contact with an academic in the first instance to discuss your research proposal and secure their agreement in principle to act as your supervisor.
If you have your own research proposal, you must identify a suitable supervisor or supervisors within the Nuffield Department of Population Health and secure their agreement in principle to supervise your project should your application be accepted. Once you have secured a supervisory arrangement in principle you should then apply to the course.
Details of academic staff, including their research interests and contact details, can be found on the department's website.
Improving access to graduate study
This course is taking part in initiatives to improve the selection procedure for graduate applications, to ensure that all candidates are evaluated fairly.
Socio-economic data (where it has been provided in the application form) will be used as part of an initiative to contextualise applications at the different stages of the selection process.
Completing your application
You should refer to the information below when completing the application form, paying attention to the specific requirements for the supporting documents.
For this course, the application form will include questions that collect information that would usually be included in a CV/résumé. You should not upload a separate document. If a separate CV/résumé is uploaded, it will be removed from your application.
If any document does not meet the specification, including the stipulated word count, your application may be considered incomplete and not assessed by the academic department. Expand each section to show further details.
Proposed field and title of research project
Under the 'Field and title of research project' please enter your proposed field or area of research if this is known. If the department has advertised a specific research project that you would like to be considered for, please enter the project title here instead.
You should not use this field to type out a full research proposal. You will be able to upload your research supporting materials separately if they are required (as described below).
Proposed supervisor
Under 'Proposed supervisor name' enter the name of the academic(s) whom you would like to supervise your research.
You must make contact with your proposed supervisor before applying, as outlined above.
Referees
Three overall, academic preferred
Whilst you must register three referees, the department may start the assessment of your application if two of the three references are submitted by the course deadline and your application is otherwise complete. Please note that you may still be required to ensure your third referee supplies a reference for consideration.
References should generally be academic though one professional reference is acceptable.
Your references will support intellectual ability, academic achievement, motivation and ability to work with peers.
Official transcript(s)
Your transcripts should give detailed information of the individual grades received in your university-level qualifications to date. You should only upload official documents issued by your institution and any transcript not in English should be accompanied by a certified translation.
More information about the transcript requirement is available in the Application Guide.
Statement of purpose/personal statement and research proposal:
Statement a maximum of 500 words, proposal a maximum of 1,400 words
Your statement of purpose/personal statement and research proposal should be submitted as a single, combined document with clear subheadings. Please ensure that the word counts for each section are clearly visible in the document.
Statement of purpose/personal statement (500 words)
You should provide a statement of your research interests, in English, describing how your background and research interests relate to the programme. If possible, please ensure that the word count is clearly displayed on the document.
It will be normal for students’ ideas and goals to change in some ways as they undertake their studies, but your personal statement will enable you to demonstrate your current interests and aspirations.
The statement should focus on academic or research-related achievements and interests rather than personal achievements and interests.
This will be assessed for:
- your reasons for applying;
- evidence of motivation for and understanding of the proposed area of study;
- the ability to present a reasoned case in English;
- capacity for sustained and focused work; and
- understanding of problems in the area and ability to construct and defend an argument.
Research proposal (a maximum of 1,400 words)
You should submit a detailed outline of your intended research, based either on an advertised research project or your own proposal. This should cover areas such as the background to the research, methodology and the contribution to the field of learning.
The research proposal will be assessed for:
- background knowledge
- aims of the research project
- proposed research methods
- contribution to the proposed field of study
- overall coherence of the proposal.
The proposal should be no more than 1,400 words in a legible font (single-spaced and no smaller than Arial point 10).
Please cite any key sources; these do not need to be included within the word limit, but they should not take up more than half a page. Please do not include an anticipated timeline (eg Gantt chart) in your proposal.
It will be normal for your ideas subsequently to change in some ways as you investigate the evidence and develop your project during your DPhil studies.
Your research proposal should focus on your proposed research rather than personal achievements, interests and aspirations.
Start or continue your application
You can start or return to an application using the relevant link below. As you complete the form, please refer to the requirements above and consult our Application Guide for advice.
Apply - Full time Apply - Part time Continue application
After you've submitted your application
Your application (including the supporting documents outlined above) will be assessed against the entry requirements detailed on this course page. Whether or not you have secured funding will not be taken into consideration when your application is assessed. You can find out more about our shortlisting and selection process in our detailed guide to what happens next.
Find out how to manage your application after submission, using our Applicant Self-Service tool.