About this Course
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Try out lectures, course readings, and self-paced assignments from the Imperial MPH degree

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Flexible deadlines

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Beginner Level

A background in health sciences or/and quantitative methods would be useful, but not essential.

Approx. 12 hours to complete

Suggested: 4 weeks, 2-4 hrs/week...

English

Subtitles: English

What you will learn

  • Check

    Calculate and interpret appropriate measures in order to describe disease frequency, association and attributable risk for given scenarios.

  • Check

    Calculate sensitivity, specificity, positive and negative predictive values, in order to interpret these values in the context of screening.

Skills you will gain

incidenceEpidemiologyPrevalenceassociation

Start working towards your degree

Try out lectures, course readings, and self-paced assignments from the Imperial MPH degree

100% online

Start instantly and learn at your own schedule.

Flexible deadlines

Reset deadlines in accordance to your schedule.

Beginner Level

A background in health sciences or/and quantitative methods would be useful, but not essential.

Approx. 12 hours to complete

Suggested: 4 weeks, 2-4 hrs/week...

English

Subtitles: English

Syllabus - What you will learn from this course

Week
1
2 hours to complete

Measures of disease frequency

One of the main purposes of epidemiology is to describe the frequency of diseases or other conditions that are important for the health of populations. Depending on the circumstances, there are different types of measures that you can use to do this. In this module, you will learn to calculate measures such as the prevalence, odds, cumulative incidence and incidence rate. We will highlight what they have in common as well as their differences. By the end of the module, you will be able to select and calculate the appropriate measure of frequency in a variety of contexts.

...
5 videos (Total 18 min), 7 readings, 1 quiz
5 videos
Odds3m
Prevalence3m
Cumulative Incidence5m
Incidence rate5m
7 readings
About Imperial College & the team5m
How to be successful in this course5m
Grading policy5m
Glossary & Additional readings 20m
Recap: Measures of Frequency10m
Quiz Instructions2m
Relationship between Measures of Frequency10m
1 practice exercise
Measures of Frequency30m
Week
2
2 hours to complete

Measures of association

This module starts by introducing the distinction between association and causation, which is critical not only for epidemiology, but for research in general. Subsequently, you will learn all the main measures epidemiologists use to quantify association; mainly risk and rate differences and risk, rate and odds ratios. Over the course of this module, you will develop the skills to calculate and interpret measures of frequency. This is not enough by itself though, so you will also learn to select the most appropriate measure depending on the research question and the availability of data.

...
5 videos (Total 19 min), 4 readings, 2 quizzes
5 videos
Relative Measures of Association5m
Absolute Measures of Association3m
Relative and Absolute Measures of Association4m
Ratios Versus Differences2m
4 readings
The 2x2 Table10m
Recap: Measures of Association10m
Quiz Instructions2m
Quiz Instructions2m
2 practice exercises
Measures of Association: Part 130m
Measures of Association: Part 230m
Week
3
2 hours to complete

Attributable risk and strategies for prevention

Published studies often report the magnitude of the association they investigate, which is clearly important when trying to identify causal links. Sometimes though, what we are interested in is the impact of a factor or of a disease on the population as a whole. This is when the concepts of attributable risk and of population attributable risk come in handy. These measures quantify the population impact of a health-related factor and therefore are particularly useful for health policy. Equipped with this knowledge, you will then explore the two main approaches to disease prevention: the high-risk and the population approach.

...
3 videos (Total 14 min), 4 readings, 1 quiz
3 videos
Population Attributable Risk3m
The Prevention Paradox4m
4 readings
Recap: Attributable Risk10m
Quiz Instructions10m
Overview of Measures in Epidemiology10m
Strategies of Prevention30m
1 practice exercise
Attributable Risk30m
Week
4
3 hours to complete

Disease detection and screening

Diagnostic tests are used all the time to determine whether an individual is sick or not. However, these tests are far from perfect. Quantifying their imperfection allows us to understand their limitations and interpret their results. In this module, you will learn to calculate and interpret the metrics used to do this, including sensitivity, specificity, positive and negative predictive values. Using these metrics, you will subsequently learn to evaluate whether a screening programme can be effective or not considering its methodological and practical aspects.

...
6 videos (Total 22 min), 5 readings, 3 quizzes
6 videos
Predictive Values3m
Calculation of Diagnostic Test Metrics4m
Screening3m
Evaluating Screening5m
Course Summary1m
5 readings
Disease Detection and Diagnostic Tests5m
Recap: Diagnostic Test Metrics10m
Quiz Instructions5m
Receiver Operative Characteristic (ROC) Curve10m
Quiz Instructions5m
3 practice exercises
Misclassification15m
Diagnostic Test Metrics30m
Wrap up: Measuring Disease45m
4.6
4 ReviewsChevron Right

Top reviews from Measuring Disease in Epidemiology

By RRMar 11th 2019

Thank you for the excellent course materials, quizzes, and discussions. They have been extremely useful in updating my knowledge. Please keep the good work going.

Instructor

Avatar

Filippos Filippidis

Lecturer in Public Health
School of Public Health

Get a head start on your degree

This course is part of the 100% online Global Master of Public Health from Imperial College London. Start an open course or Specialization today to watch courses featuring iMBA faculty and complete self-paced assignments. When you complete each course, you’ll earn a certificate that you can add to your LinkedIn and resume. If you apply and are admitted to the full program, your courses count towards your degree learning.

About Imperial College London

Imperial College London is a world top ten university with an international reputation for excellence in science, engineering, medicine and business. located in the heart of London. Imperial is a multidisciplinary space for education, research, translation and commercialisation, harnessing science and innovation to tackle global challenges. Imperial students benefit from a world-leading, inclusive educational experience, rooted in the College’s world-leading research. Our online courses are designed to promote interactivity, learning and the development of core skills, through the use of cutting-edge digital technology....

About the Epidemiology for Public Health Specialization

Thousands of new epidemiological studies are conducted every year and their results can have a profound impact on how we live our lives. Decisions regarding the food you eat, how much you exercise, where you live and what treatment you will follow if you get sick are made based on data from such studies. This specialization aims to equip you with the skills that will allow you to correctly interpret epidemiological research, consider its limitations, and design your own studies. The first course of the specialisation, Measuring Disease in Epidemiology, looks into the main measures used in epidemiology and how these can inform decisions around public health policy, screening and prevention. The second course, Study Designs in Epidemiology, provides an overview of the most common study designs, their strengths and limitations. The third course, Validity and Bias in Epidemiology, builds on the fundamental concepts taught in the previous courses to discuss bias and confounding and how they might affect study results. It also provides the essential skills to prevent and control bias and confounding and critically think about causality. At the end of this specialization you will have gained the essential skills to design and critique epidemiological research and you will be able to pursue more advanced courses in epidemiology. Although this specialization is part of the GMPH programme, it can be taken independently of the GMPH....
Epidemiology for Public Health

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