Essentials of medical statistics.

Abstract

Basics Frequencies, frequency distributions and histograms Means, standard deviations and standard errors The normal distribution Confidence interval for a mean Significance tests for a single mean Comparison of two means Comparison of several means - analysis of variance Correlation and linear regression Multiple regression Probability Proportions The chi-squared test for contingency tables Further methods for contingency tables Measures of mortality and morbidity Survival analysis The Poisson distribution Goodness of fit of frequency distributions Transformations Non-parametric methods Planning and conducting an investigation Sources of error Sampling methods Cohort and case-control studies Clinical trials and intervention studies Calculation of required sample size Use of computers Appendix: Statistical tables