a practical guide Stewart, Antony creator text London CRC Press 2022 Fifth edition monographic eng

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xi, 204 pages ; 25 cm. Contents: What are statistics? -- Population and samples -- Random sampling -- Presenting data -- Frequencies, percentages, proportions and rates -- Types of data -- Mean, median and mode -- Centiles -- Standard deviation -- Standard error -- Normal distribution -- Confidence intervals -- Probability -- Hypothesis tests and p-values -- The t-tests -- Data checking -- Parametric and non-parametric tests -- Correlation and linear regression -- Analysis of variance and some other types of regression -- Chi-squared test -- Statistical power and sample size -- Effect size -- What is epidemiology? -- Bias and confounding -- Measuring disease frequency -- Measuring association in epidemiology -- Cross-sectional studies -- Questionnaires -- Cohort studies -- Case-control studies -- Randomised controlled trials -- Screening -- Evidence-based healthcare. Antony Stewart Includes appendices, references and index. Statistics Epidemiologic methods Cir./614.4/St491 9780367708153 230920 20240423133238.0