Biostatistics By Muhammad Ibrahim Page

While editions vary, Muhammad Ibrahim’s Biostatistics generally follows this progression:

| Section | Topic | Key Concepts | |---------|-------|----------------| | I | Introduction | Scope of biostatistics, variables, measurement scales (nominal, ordinal, interval, ratio). | | II | Data Presentation | Frequency tables, bar charts, histograms, pie charts, stem-and-leaf plots, boxplots. | | III | Descriptive Statistics | Mean, median, mode; range, variance, standard deviation, coefficient of variation. | | IV | Probability | Basic probability rules, conditional probability, Bayes’ theorem (applied to diagnostic tests). | | V | Probability Distributions | Binomial, Poisson, Normal distribution; Z-scores; Central Limit Theorem. | | VI | Sampling | Sampling methods (random, stratified, cluster), sampling error, non-probability sampling. | | VII | Estimation & Confidence Intervals | Point vs. interval estimation; CI for mean, proportion, and difference between means. | | VIII | Hypothesis Testing | Null/alternative hypotheses, p-values, type I & II errors, power, one-tailed vs. two-tailed tests. | | IX | Parametric Tests | t-test (independent, paired), ANOVA (one-way, two-way), Pearson correlation. | | X | Non-parametric Tests | Mann-Whitney U, Wilcoxon signed-rank, Kruskal-Wallis, Chi-square, Fisher’s exact test. | | XI | Regression & Correlation | Simple linear regression, multiple regression, logistic regression basics, Spearman’s rho. | | XII | Vital Statistics | Mortality rates, morbidity rates, life tables, standardized rates. | | XIII | Clinical Trials | Randomization, blinding, placebo control, equivalence/non-inferiority designs. | | XIV | Computer Applications | Use of SPSS, MS Excel, or R for biostatistical analysis (included as an appendix or practical manual). | biostatistics by muhammad ibrahim

In cancer and chronic disease research, not all patients follow up for the same duration. Ibrahim explains: | | IV | Probability | Basic probability

✅ Accessible language – Avoids dense mathematical notation.
✅ Short chapters – Designed for busy medical students (3–5 hours per chapter).
✅ Exam-oriented – Includes multiple-choice questions, true/false, and case-based short essays.
✅ Low cost – Often priced as an affordable local edition, especially in Pakistan, India, Bangladesh, and Egypt.
✅ Clinical relevance – Each method includes a published medical study as an example. | | VII | Estimation & Confidence Intervals | Point vs