Bachelor's degree in Nursing (to qualify as a nurse) (Verona)

Evidence based nursing [Matricole pari] - STATISTICA SANITARIA E EPIDEMIOLOGIA CLINICA

Course code
Name of lecturer
Giuseppe Verlato
Number of ECTS credits allocated
Academic sector
Language of instruction
INF VR - 3° anno 1° sem dal Oct 18, 2017 al Dec 21, 2017.

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 course is aimd at enabling the student to:
- estimate accuracy and precision of measurements performed in the biomedical field;
- properly synthetize and summarize the information collected on a series of patients;
- compute the probability of a single event or several events
- understand how to generalize findings from samples to the original population
- critically appraise scientific literature dealing with Nursing, and understand and correctly implement guidelines.


The role of Statistics in Health Professions.

Different measurement scales – Statistical variables and their presentation through frequency distributions: one-entry or double-entry tables – Measures of central tendency: mean (arithmetic, geometric, weighted), median, mode, percentiles – Measures of dispersion: range, interquartile range, sum of squares, variance (mean square), standard deviation, variation coefficient.

Classic, frequentist, subjective interpretations of probability – Sum and product rules of probability – Independent and dependent events and conditional probability – Sensitivity, specificity, positive and negative predictive value of a diagnostic test – ROC curves – Bayes theorem and its application to differential diagnosis – Random variables – Theoretical probability distributions: normal distribution.

Populations and samples - Common sampling designs – Sampling distribution of an estimator (sample mean).

Point and interval estimates: confidence interval – Logical structure of hypothesis testing: null and alternative hypotheses; acceptance and rejection regions; type I and type II error; power of a statistical test – Choice of statistical test.

Measures of disease frequency: prevalence, incidence – Measures of association: risk difference, relative risk, odds ratio – Study design: cross-sectional, cohort and case-control studies.

Reference books
Author Title Publisher Year ISBN Note
Jekel JF, Katz DL, Elmore JG, Wild DMG Epidemiologia, Biostatistica e Medicina Preventiva Elsevier-Masson 2009
Verlato G, Zanolin ME Esercizi di Statistica Medica, Informatica ed Epidemiologia Libreria Cortina Editrice, Verona 2000
Lantieri PB, Risso D, Ravera G Statistica medica per le professioni sanitarie (Edizione 2) McGraw-Hill, Milano 2004
Fowler J, Jarvis P, Chevannes M Statistica per le Professioni Sanitarie EdiSES srl, Napoli 2006

Assessment methods and criteria

The written examination will consist of about 25 multiple choice questions with 5-8 possible answers, and one exercise of Statistical Inference on a simple data set. Some statistical questions will deal with an article dealing with Nursing, chosen by the teacher of Nursing. Wrong answers to the written examination will be orally discussed with the student.


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