Biostatistics I

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José Alberto da Silva Freitas

Cristina Maria Nogueira da Costa Santos

Teresa Sarmento Henriques

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Suitable for English-speaking students

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This unit aims to empower the students with theoretical foundations and practical approach to basic statistical methods used in clinical research, assessment of technologies and health service research. After this course unit the students should be able to: identify the correct statistical methodology for data analysis; apply these methods using statistical software; interpret the results of the statistical methods
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At the end of this course, the students should be able to characterize different types of data and variables; computerize and process the data ; check for errors; describe graphically data; describe data with summary measures; apply basic techniques of statistical inferences ( point and interval estimation and hypothesis tests) and to apply a simple linear regression model. Students should also be able to criticize the statistical analysis of scientific articles published in the literature in Health Sciences area.
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Presencial
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Handling data: types of data: data entry; error checking.

Descriptive statistics: measures of average and measures of spread; displaying data graphically.

Introduction to probability.

Normal distribution and other theoretical distributions. Statistical inference – Sampling and estimation.

Hypothesis testing: parametric tests – t test, F test (One-Way ANOVA);

Non-parametric tests – Mann-Whintey, Kruskal-Wallis, Wilcoxon and qui-square tests.

Statistical power and sample size calculation.

Correlation and simple linear regression.
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Lectures, group discussion and individual exercises. All the activities will be supported by an e-learning platform.
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R Project for Statistical Computing
IBM Statistical Package for Social Sciences (SPSS)
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Distributed evaluation with final exam
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The frequency will be obtained according to the pedagogical regulation.

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The final grade will be based on the result of a theoretical exam (50%) and componente based on practical application of the aquired knowledge (50%).
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[ms_accordion_item title=”Mandatory literature” color=”” background_color=”” close_icon=”” open_icon=”” status=”open”]
Aviva Petrie, Caroline Sabin; ; Medical Statistics at a Glance, Wiley-Blackwell, 2013. ISBN: ISBN: 978-0-470-65848-2
Campbell MJ, Swinscow TDV; tatistics at Square One, 11th Edition. BMJBooks, 2009
Bland JM; An Introduction to Medical Statistics, Oxford Medical Publications
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