Bachelor's degree in Dental Hygiene (Verona)

Methodology for evidence-based practice - STATISTICA SANITARIA ED EPIDEMIOLOGICA CLINICA

Course code
Name of lecturer
Francesca Locatelli
Number of ECTS credits allocated
Academic sector
Language of instruction
Lezioni CLID VERONA 1 anno 1 SEMESTRE dal Oct 7, 2019 al Dec 20, 2019.

To show the organization of the course that includes this module, follow this link * Course organization

Lesson timetable

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Learning outcomes

The aim of the course is to provide the theoretical and practical tools for assessing the frequency of diseases in human populations and the associated risk factors. The course therefore aims to provide expertise in epidemiology and bio-statistics. At the end of the course, the student must demonstrate to have understood the basic bio-statistical methods applied to epidemiology and the elements of an epidemiological study.


Collection and organization of biomedical data:
- stages of a statistical research;
- population, sample and statistical units;
- measurement process and measurement scales;
- validity, accuracy and precision of a measuring instrument;
- absolute, relative and cumulative frequencies;
- one and two-way frequency tables.

Graphical representation of biomedical data:
- pie chart;
- bar chart;
- histogram;
- cumulative frequency polygon.

Measures of location and dispersion:
- mode;
- percentiles and median;
- simple and weighted arithmetic mean;
- range;
- interquartile range;
- deviance, variance and standard deviation;
- coefficient of variation.

An introduction to probability theory:
- definition of probability;
- axiomatic theory of probabilities;
- rules of probability calculation;
- independent and conditional probabilities;
- Bernoulli and Gauss distributions.

Diagnostic and screening tests:
- sensitivity and specificity.

The objects of epidemiology:
- outcome;
- measures of disease frequency (prevalence, cumulative incidence, incidence rate);
- determinant.

The occurrence relationship:
- measures of absolute effect (attributable risk);
- measures of relative effect (relative risk, odds ratio).

The epidemiological studies:
- ecological study;
- cross-sectional study;
- case-control study;
- cohort study;
- clinical trial.

An introduction to statistical inference:
- point estimate;
- confidence interval;
- statistical test.

Reference books
Author Title Publisher Year ISBN Note
Lantieri PB, Risso D, Ravera G Elementi di Statistica Medica McGraw-Hill 2007
Jekel JF, Katz DL, Elmore JG, Wild DMG Epidemiologia, Biostatistica e Medicina Preventiva Elsevier-Masson 2009
Glantz SA Statistica per Discipline Biomediche (Edizione 6) McGraw-Hill 2007 9788838639258

Assessment methods and criteria

The final test is a written exam with short answer questions and multiple choice questions.
The aim of the test is to verify the knowledge of all the topics discussed.
The final evaluation is expressed in thirtieths.

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