IGIENE E STATISTICA 1

Module Statistics

The course aims to provide students with the basic concepts to develop statistical and methodological skills applied to the analysis of biomedical phenomena under investigation. Students will acquire knowledge of the main tools for collecting, measuring, and processing biomedical data. Furthermore, students will gain the ability to independently explore advanced topics in medical statistics and their related applications.

The course includes classroom lectures with continuous encouragement for interaction with students, as well as in-class and laboratory exercises to develop the ability to apply the knowledge gained during the course. In the event that teaching is conducted in a blended or remote mode, necessary variations may be introduced compared to what has been previously stated in order to adhere to the planned program as outlined in the syllabus.

Attendance is mandatory. 

Basic concepts and objectives of statistics. Data collection methods. Types of biological variables. Data tabulation and graphical representation.

Descriptive statistics. Measures of central tendency (mean, mode, median, quartiles, percentiles). Measures of variability: range, deviation, variance, standard deviation, coefficient of variation.

Bivariate analysis and causal relationships between variables.

The concept of covariance. Pearson's correlation coefficient: values, limits, and properties. 

Concepts of causality and dependence. Dependency analysis. Regression analysis.

Probability calculation. The concept of an event. Operations on events. Venn diagrams. Conditional probability. Application of probability in the biomedical field: Bayes' theorem.

Inferential statistics. Hypothesis testing, statistical significance, P-value. Parametric and non-parametric tests for independent and dependent data. Statistical tests for quantitative variables: Z-test, T-test, ANOVA. Statistical tests for categorical variables: Chi-squared test.

BIOSTATISTICA, M. Pagano - K. Gauvreau, Editore: Idelson-Gnocchi

Specially prepared material will be distributed during the course of the lectures and made available on the Studium website.

Written (multiple chioces) and oral exams. 

The highest grade will be assigned to the student who has demonstrated mastery of the topics, ability to apply knowledge, communication skills and mastery of the disciplinary vocabulary.

Verification of learning can also be carried out by an online platform, if needed.

Which of the following statements correctly describes the concept of a population or “universe”?

A) A statistical population consists of all elements that share certain characteristics, that is, the set of all individuals or objects to which the phenomenon under study refers

B) A population is a set of elements that represent only a part of the whole, that is, a subset of units

C) A statistical population is always smaller than a sample

D) None of the above 

The median can be calculated:

A) For quantitative variables and ordinal qualitative variables

B) Only for quantitative variables

C) For ordinal and nominal qualitative variables

D) None of the above