Description
Statistics which describe data (Percentages; Mean; Median; Mode; Standard deviation); Statistics which test confidence (Confidence intervals; P values); Statistics which test differences (t tests and other parametric tests; Mann–Whitney and other non-parametric tests; Chi-squared); Statistics which compare risk (Risk ratio; Odds ratio; Risk reduction and numbers needed to treat); Statistics which analyze relationships: (Correlation; Regression); Statistics which analyze survival (Survival analysis: life tables and Kaplan–Meier plots; The Cox regression model); Statistics which analyze clinical investigations and screening (Sensitivity, specificity and predictive value; Level of agreement); Statistics at work: (Means, standard deviations, medians and odds ratios; Confidence intervals and number needed to treat; Correlation and regression; Survival analysis; Sensitivity, specificity and predictive values; Choosing the right statistical test).